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#16
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
"Diagnostics" window shows actual "CPU Core", "+1.5 V", "+3.3 V", "+5 V",
"+12 V" "Voltage Values" in EVEREST. What are the admissible "ranges" for "Voltage Values" for "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"? Will EVEREST v1.1 alert me if the voltage will drop to the low end of the range or below? "Jim Macklin" wrote in message ... EVEREST will show you power required by the CPU and what devices are installed. All power supplies have same voltage standards. If you try to draw more power than rated power, the voltage will drop to the low end of the range or below. There is no other method that I know of to plan in advance of a purchase than reading the spec sheets and using a calculator to add up the totals. My EVEREST report on the CPU... --------[ EVEREST Home Edition (c) 2003, 2004 Lavalys, Inc. ]----------------------------------------------------------- Version EVEREST v1.10.106 Homepage http://www.lavalys.com/ Report Type Quick Report Computer Generator J.H.Macklin Operating System Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) Date 2004-09-07 Time 01:30 --------[ CPU ]--------------------------------------------------------------------------------------------------------- CPU Properties: CPU Type Intel Celeron 4, 1700 MHz (17 x 100) CPU Alias Willamette Lite, Willamette-128 CPU Stepping E0 Instruction Set x86, MMX, SSE, SSE2 Original Clock 1700 MHz Engineering Sample No L1 Trace Cache 12K Instructions L1 Data Cache 8 KB L2 Cache 128 KB (On-Die, ATC, Full-Speed) CPU Physical Info: Package Type 478 Pin uPGA Package Size 3.50 cm x 3.50 cm Transistors 42 million Process Technology 6M, 0.18 um, CMOS Die Size 217 mm2 Core Voltage 1.75 V I/O Voltage 1.75 V Typical Power 63.5 - 66.1 W (depending on clock speed) Maximum Power 84 - 88 W (depending on clock speed) CPU Manufacturer: Company Name Intel Corporation Product Information http://www.intel.com/products/browse/processor.htm CPU Utilization: CPU #1 6 % SNIP ------------------------------------------------------------------------------------------------------------------------ The names of actual companies and products mentioned herein may be the trademarks of their respective owners. ***************************** "Dmitriy Kopnichev" wrote in message ... | How to know in the EVEREST if my PSU is enough for my hardware? What are | minimum admissible "Voltage Values" for "CPU Core", "+1.5 V", "+3.3 V", "+5 | V", "+12 V"? | "Jim Macklin" wrote in message | ... | Here are some numbers [for the OP] to indicate what you | might need. You can get numbers for your system using | EVEREST Home from www.lavalys.com Also check the sources at | Intel, AMD and Antec-Inc. | http://www.epanorama.net/links/psu_computer.html | and | http://computer.howstuffworks.com/fr...ndex_cases.htm | **********************************************8 | From PC Power and Cooling | "Products: Power Supplies: | How Much Power Do You Need? | | | | Component Requirement Line(s) Used | AGP Video Card 30 - 50W +3.3V | Average PCI Card 5 - 10W +5V | 10/100 NIC 4W +3.3V | SCSI Controller PCI Card 20W +3.3V and +5V | Floppy Drive 5W +5V | CD-ROM 10 - 25W +5V and +12V | DVD-ROM 10 - 25W +5V and +12V | CD-RW 10 - 25W +5V and +12V | 7200rpm IDE Hard Drive 5 - 20W +5V and +12V | 10,000rpm SCSI Drive 10 - 40W +5V and +12V | Case/CPU Fans 3W (ea.) +12V | Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V | RAM 8W per 128MB +3.3V | Pentium III Processor 38W +5V | Pentium 4 Processor 70W +12V | AMD Athlon Processor 70W +12V | | | For overall power supply wattage, add the requirement for | each device in your system, then multiply by 1.8. (The | multiplier takes into account that today's systems draw | disproportionally on the +12V output. Furthermore, power | supplies are more efficient and reliable when loaded to | 30% - 70% of maximum capacity.)" | ******************************************* | | | My Celeron can use 88 Watts, a P4 could use much more. | A motherboard can use 50 Watts | A video card 50 Watts depending on model | Each hard drive 25 Watts, an optical drive would use 25 | Watts to read and maybe 40 Watts while writing. | Each RAM stick uses 10 Watts or so/per 128 MB | | You need extra capacity to handle start-up surge loads. | | -- | The people think the Constitution protects their rights; | But government sees it as an obstacle to be overcome. | | | | "Nathan McNulty" wrote in message | ... | | That is still going to be too low for what you are | running. You risk | | data loss, system problem, and even damaged hardware if | you run them for | | extended periods of time with too little power. | | | | ---- | | Nathan McNulty | | | | Dmitriy Kopnichev wrote: | | My PSU is 250 Watt. | | "Nathan McNulty" wrote in message | | ... | | | | It would help if you included info such as the Wattage | of your PSU. What | | is up with all the odd questions anyways? I would | suggest using at least | | a 400 Watt PSU for that system though. | | | | ---- | | Nathan McNulty | | | | | | Dmitriy Kopnichev wrote: | | | | Hello | | How to know if a power supply unit of my computer case | would supply | | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM | drives? I want to add a | | third HDD. | | | | | | | | | | |
Ads |
#17
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
I don't think it does. I used the Intel active monitor,
your mobo may have a monitor or you can use Motherboard Monitor 5 which is a free download. http://mbm.livewiredev.com/download.html "Dmitriy Kopnichev" wrote in message ... | Will EVEREST v1.1 alert me if the voltage will drop to the low end of the | range or below? What are the admissible "ranges" for "Voltage Values" for | "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"? | "Jim Macklin" wrote in message | ... | EVEREST will show you power required by the CPU and what | devices are installed. All power supplies have same voltage | standards. If you try to draw more power than rated power, | the voltage will drop to the low end of the range or below. | | There is no other method that I know of to plan in advance | of a purchase than reading the spec sheets and using a | calculator to add up the totals. | My EVEREST report on the CPU... | --------[ EVEREST Home Edition (c) 2003, 2004 Lavalys, | Inc. ]----------------------------------------------------------- | | Version | EVEREST v1.10.106 | Homepage | http://www.lavalys.com/ | Report Type Quick | Report | Computer | Generator | J.H.Macklin | Operating System | Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) | Date | 2004-09-07 | Time 01:30 | | | --------[ | CPU ]--------------------------------------------------------------------------------------------------------- | | CPU Properties: | CPU Type | Intel Celeron 4, 1700 MHz (17 x 100) | CPU Alias | Willamette Lite, Willamette-128 | CPU Stepping E0 | Instruction Set x86, | MMX, SSE, SSE2 | Original Clock 1700 | MHz | Engineering Sample No | L1 Trace Cache 12K | Instructions | L1 Data Cache 8 KB | L2 Cache 128 | KB (On-Die, ATC, Full-Speed) | | CPU Physical Info: | Package Type 478 | Pin uPGA | Package Size 3.50 | cm x 3.50 cm | Transistors 42 | million | Process Technology 6M, | 0.18 um, CMOS | Die Size 217 | mm2 | Core Voltage 1.75 | V | I/O Voltage 1.75 | V | Typical Power | 63.5 - 66.1 W | (depending on clock speed) | Maximum Power 84 - | 88 W (depending on clock speed) | | CPU Manufacturer: | Company Name | Intel Corporation | Product Information | http://www.intel.com/products/browse/processor.htm | | CPU Utilization: | CPU #1 6 % | | SNIP | ------------------------------------------------------------------------------------------------------------------------ | | The names of actual companies and products mentioned herein | may be the trademarks of their respective owners. | ***************************** | | | | "Dmitriy Kopnichev" wrote in message | ... | | How to know in the EVEREST if my PSU is enough for my | hardware? What are | | minimum admissible "Voltage Values" for "CPU Core", "+1.5 | V", "+3.3 V", "+5 | | V", "+12 V"? | | "Jim Macklin" wrote | in message | | ... | | Here are some numbers [for the OP] to indicate what you | | might need. You can get numbers for your system using | | EVEREST Home from www.lavalys.com Also check the | sources at | | Intel, AMD and Antec-Inc. | | http://www.epanorama.net/links/psu_computer.html | | and | | | http://computer.howstuffworks.com/fr...ndex_cases.htm | | **********************************************8 | | From PC Power and Cooling | | "Products: Power Supplies: | | How Much Power Do You Need? | | | | | | | | Component Requirement Line(s) Used | | AGP Video Card 30 - 50W +3.3V | | Average PCI Card 5 - 10W +5V | | 10/100 NIC 4W +3.3V | | SCSI Controller PCI Card 20W +3.3V and +5V | | Floppy Drive 5W +5V | | CD-ROM 10 - 25W +5V and +12V | | DVD-ROM 10 - 25W +5V and +12V | | CD-RW 10 - 25W +5V and +12V | | 7200rpm IDE Hard Drive 5 - 20W +5V and +12V | | 10,000rpm SCSI Drive 10 - 40W +5V and +12V | | Case/CPU Fans 3W (ea.) +12V | | Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V | | RAM 8W per 128MB +3.3V | | Pentium III Processor 38W +5V | | Pentium 4 Processor 70W +12V | | AMD Athlon Processor 70W +12V | | | | | | For overall power supply wattage, add the requirement | for | | each device in your system, then multiply by 1.8. (The | | multiplier takes into account that today's systems draw | | disproportionally on the +12V output. Furthermore, power | | supplies are more efficient and reliable when loaded to | | 30% - 70% of maximum capacity.)" | | ******************************************* | | | | | | My Celeron can use 88 Watts, a P4 could use much more. | | A motherboard can use 50 Watts | | A video card 50 Watts depending on model | | Each hard drive 25 Watts, an optical drive would use 25 | | Watts to read and maybe 40 Watts while writing. | | Each RAM stick uses 10 Watts or so/per 128 MB | | | | You need extra capacity to handle start-up surge loads. | | | | -- | | The people think the Constitution protects their rights; | | But government sees it as an obstacle to be overcome. | | | | | | | | "Nathan McNulty" wrote in message | | ... | | | That is still going to be too low for what you are | | running. You risk | | | data loss, system problem, and even damaged hardware | if | | you run them for | | | extended periods of time with too little power. | | | | | | ---- | | | Nathan McNulty | | | | | | Dmitriy Kopnichev wrote: | | | My PSU is 250 Watt. | | | "Nathan McNulty" wrote in message | | | ... | | | | | | It would help if you included info such as the | Wattage | | of your PSU. What | | | is up with all the odd questions anyways? I would | | suggest using at least | | | a 400 Watt PSU for that system though. | | | | | | ---- | | | Nathan McNulty | | | | | | | | | Dmitriy Kopnichev wrote: | | | | | | Hello | | | How to know if a power supply unit of my computer | case | | would supply | | | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM | | drives? I want to add a | | | third HDD. | | | | | | | | | | | | | | | | | | | | | |
#18
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
My main board had a PC Probe utility, but it is of 1998 year. I'm not sure
that it is compatible with Windows XP Pro SP2. "Jim Macklin" wrote in message ... I don't think it does. I used the Intel active monitor, your mobo may have a monitor or you can use Motherboard Monitor 5 which is a free download. http://mbm.livewiredev.com/download.html "Dmitriy Kopnichev" wrote in message ... | Will EVEREST v1.1 alert me if the voltage will drop to the low end of the | range or below? What are the admissible "ranges" for "Voltage Values" for | "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"? | "Jim Macklin" wrote in message | ... | EVEREST will show you power required by the CPU and what | devices are installed. All power supplies have same voltage | standards. If you try to draw more power than rated power, | the voltage will drop to the low end of the range or below. | | There is no other method that I know of to plan in advance | of a purchase than reading the spec sheets and using a | calculator to add up the totals. | My EVEREST report on the CPU... | --------[ EVEREST Home Edition (c) 2003, 2004 Lavalys, | Inc. ]----------------------------------------------------------- | | Version | EVEREST v1.10.106 | Homepage | http://www.lavalys.com/ | Report Type Quick | Report | Computer | Generator | J.H.Macklin | Operating System | Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) | Date | 2004-09-07 | Time 01:30 | | | --------[ | CPU ]--------------------------------------------------------------------------------------------------------- | | CPU Properties: | CPU Type | Intel Celeron 4, 1700 MHz (17 x 100) | CPU Alias | Willamette Lite, Willamette-128 | CPU Stepping E0 | Instruction Set x86, | MMX, SSE, SSE2 | Original Clock 1700 | MHz | Engineering Sample No | L1 Trace Cache 12K | Instructions | L1 Data Cache 8 KB | L2 Cache 128 | KB (On-Die, ATC, Full-Speed) | | CPU Physical Info: | Package Type 478 | Pin uPGA | Package Size 3.50 | cm x 3.50 cm | Transistors 42 | million | Process Technology 6M, | 0.18 um, CMOS | Die Size 217 | mm2 | Core Voltage 1.75 | V | I/O Voltage 1.75 | V | Typical Power | 63.5 - 66.1 W | (depending on clock speed) | Maximum Power 84 - | 88 W (depending on clock speed) | | CPU Manufacturer: | Company Name | Intel Corporation | Product Information | http://www.intel.com/products/browse/processor.htm | | CPU Utilization: | CPU #1 6 % | | SNIP | ------------------------------------------------------------------------------------------------------------------------ | | The names of actual companies and products mentioned herein | may be the trademarks of their respective owners. | ***************************** | | | | "Dmitriy Kopnichev" wrote in message | ... | | How to know in the EVEREST if my PSU is enough for my | hardware? What are | | minimum admissible "Voltage Values" for "CPU Core", "+1.5 | V", "+3.3 V", "+5 | | V", "+12 V"? | | "Jim Macklin" wrote | in message | | ... | | Here are some numbers [for the OP] to indicate what you | | might need. You can get numbers for your system using | | EVEREST Home from www.lavalys.com Also check the | sources at | | Intel, AMD and Antec-Inc. | | http://www.epanorama.net/links/psu_computer.html | | and | | | http://computer.howstuffworks.com/fr...ndex_cases.htm | | **********************************************8 | | From PC Power and Cooling | | "Products: Power Supplies: | | How Much Power Do You Need? | | | | | | | | Component Requirement Line(s) Used | | AGP Video Card 30 - 50W +3.3V | | Average PCI Card 5 - 10W +5V | | 10/100 NIC 4W +3.3V | | SCSI Controller PCI Card 20W +3.3V and +5V | | Floppy Drive 5W +5V | | CD-ROM 10 - 25W +5V and +12V | | DVD-ROM 10 - 25W +5V and +12V | | CD-RW 10 - 25W +5V and +12V | | 7200rpm IDE Hard Drive 5 - 20W +5V and +12V | | 10,000rpm SCSI Drive 10 - 40W +5V and +12V | | Case/CPU Fans 3W (ea.) +12V | | Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V | | RAM 8W per 128MB +3.3V | | Pentium III Processor 38W +5V | | Pentium 4 Processor 70W +12V | | AMD Athlon Processor 70W +12V | | | | | | For overall power supply wattage, add the requirement | for | | each device in your system, then multiply by 1.8. (The | | multiplier takes into account that today's systems draw | | disproportionally on the +12V output. Furthermore, power | | supplies are more efficient and reliable when loaded to | | 30% - 70% of maximum capacity.)" | | ******************************************* | | | | | | My Celeron can use 88 Watts, a P4 could use much more. | | A motherboard can use 50 Watts | | A video card 50 Watts depending on model | | Each hard drive 25 Watts, an optical drive would use 25 | | Watts to read and maybe 40 Watts while writing. | | Each RAM stick uses 10 Watts or so/per 128 MB | | | | You need extra capacity to handle start-up surge loads. | | | | -- | | The people think the Constitution protects their rights; | | But government sees it as an obstacle to be overcome. | | | | | | | | "Nathan McNulty" wrote in message | | ... | | | That is still going to be too low for what you are | | running. You risk | | | data loss, system problem, and even damaged hardware | if | | you run them for | | | extended periods of time with too little power. | | | | | | ---- | | | Nathan McNulty | | | | | | Dmitriy Kopnichev wrote: | | | My PSU is 250 Watt. | | | "Nathan McNulty" wrote in message | | | ... | | | | | | It would help if you included info such as the | Wattage | | of your PSU. What | | | is up with all the odd questions anyways? I would | | suggest using at least | | | a 400 Watt PSU for that system though. | | | | | | ---- | | | Nathan McNulty | | | | | | | | | Dmitriy Kopnichev wrote: | | | | | | Hello | | | How to know if a power supply unit of my computer | case | | would supply | | | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM | | drives? I want to add a | | | third HDD. | | | | | | | | | | | | | | | | | | | | | |
#19
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
My main board is Chaintech 6btm.
"Jim Macklin" wrote in message ... I don't think it does. I used the Intel active monitor, your mobo may have a monitor or you can use Motherboard Monitor 5 which is a free download. http://mbm.livewiredev.com/download.html "Dmitriy Kopnichev" wrote in message ... | Will EVEREST v1.1 alert me if the voltage will drop to the low end of the | range or below? What are the admissible "ranges" for "Voltage Values" for | "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"? | "Jim Macklin" wrote in message | ... | EVEREST will show you power required by the CPU and what | devices are installed. All power supplies have same voltage | standards. If you try to draw more power than rated power, | the voltage will drop to the low end of the range or below. | | There is no other method that I know of to plan in advance | of a purchase than reading the spec sheets and using a | calculator to add up the totals. | My EVEREST report on the CPU... | --------[ EVEREST Home Edition (c) 2003, 2004 Lavalys, | Inc. ]----------------------------------------------------------- | | Version | EVEREST v1.10.106 | Homepage | http://www.lavalys.com/ | Report Type Quick | Report | Computer | Generator | J.H.Macklin | Operating System | Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) | Date | 2004-09-07 | Time 01:30 | | | --------[ | CPU ]--------------------------------------------------------------------------------------------------------- | | CPU Properties: | CPU Type | Intel Celeron 4, 1700 MHz (17 x 100) | CPU Alias | Willamette Lite, Willamette-128 | CPU Stepping E0 | Instruction Set x86, | MMX, SSE, SSE2 | Original Clock 1700 | MHz | Engineering Sample No | L1 Trace Cache 12K | Instructions | L1 Data Cache 8 KB | L2 Cache 128 | KB (On-Die, ATC, Full-Speed) | | CPU Physical Info: | Package Type 478 | Pin uPGA | Package Size 3.50 | cm x 3.50 cm | Transistors 42 | million | Process Technology 6M, | 0.18 um, CMOS | Die Size 217 | mm2 | Core Voltage 1.75 | V | I/O Voltage 1.75 | V | Typical Power | 63.5 - 66.1 W | (depending on clock speed) | Maximum Power 84 - | 88 W (depending on clock speed) | | CPU Manufacturer: | Company Name | Intel Corporation | Product Information | http://www.intel.com/products/browse/processor.htm | | CPU Utilization: | CPU #1 6 % | | SNIP | ------------------------------------------------------------------------------------------------------------------------ | | The names of actual companies and products mentioned herein | may be the trademarks of their respective owners. | ***************************** | | | | "Dmitriy Kopnichev" wrote in message | ... | | How to know in the EVEREST if my PSU is enough for my | hardware? What are | | minimum admissible "Voltage Values" for "CPU Core", "+1.5 | V", "+3.3 V", "+5 | | V", "+12 V"? | | "Jim Macklin" wrote | in message | | ... | | Here are some numbers [for the OP] to indicate what you | | might need. You can get numbers for your system using | | EVEREST Home from www.lavalys.com Also check the | sources at | | Intel, AMD and Antec-Inc. | | http://www.epanorama.net/links/psu_computer.html | | and | | | http://computer.howstuffworks.com/fr...ndex_cases.htm | | **********************************************8 | | From PC Power and Cooling | | "Products: Power Supplies: | | How Much Power Do You Need? | | | | | | | | Component Requirement Line(s) Used | | AGP Video Card 30 - 50W +3.3V | | Average PCI Card 5 - 10W +5V | | 10/100 NIC 4W +3.3V | | SCSI Controller PCI Card 20W +3.3V and +5V | | Floppy Drive 5W +5V | | CD-ROM 10 - 25W +5V and +12V | | DVD-ROM 10 - 25W +5V and +12V | | CD-RW 10 - 25W +5V and +12V | | 7200rpm IDE Hard Drive 5 - 20W +5V and +12V | | 10,000rpm SCSI Drive 10 - 40W +5V and +12V | | Case/CPU Fans 3W (ea.) +12V | | Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V | | RAM 8W per 128MB +3.3V | | Pentium III Processor 38W +5V | | Pentium 4 Processor 70W +12V | | AMD Athlon Processor 70W +12V | | | | | | For overall power supply wattage, add the requirement | for | | each device in your system, then multiply by 1.8. (The | | multiplier takes into account that today's systems draw | | disproportionally on the +12V output. Furthermore, power | | supplies are more efficient and reliable when loaded to | | 30% - 70% of maximum capacity.)" | | ******************************************* | | | | | | My Celeron can use 88 Watts, a P4 could use much more. | | A motherboard can use 50 Watts | | A video card 50 Watts depending on model | | Each hard drive 25 Watts, an optical drive would use 25 | | Watts to read and maybe 40 Watts while writing. | | Each RAM stick uses 10 Watts or so/per 128 MB | | | | You need extra capacity to handle start-up surge loads. | | | | -- | | The people think the Constitution protects their rights; | | But government sees it as an obstacle to be overcome. | | | | | | | | "Nathan McNulty" wrote in message | | ... | | | That is still going to be too low for what you are | | running. You risk | | | data loss, system problem, and even damaged hardware | if | | you run them for | | | extended periods of time with too little power. | | | | | | ---- | | | Nathan McNulty | | | | | | Dmitriy Kopnichev wrote: | | | My PSU is 250 Watt. | | | "Nathan McNulty" wrote in message | | | ... | | | | | | It would help if you included info such as the | Wattage | | of your PSU. What | | | is up with all the odd questions anyways? I would | | suggest using at least | | | a 400 Watt PSU for that system though. | | | | | | ---- | | | Nathan McNulty | | | | | | | | | Dmitriy Kopnichev wrote: | | | | | | Hello | | | How to know if a power supply unit of my computer | case | | would supply | | | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM | | drives? I want to add a | | | third HDD. | | | | | | | | | | | | | | | | | | | | | |
#20
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
My main board had a Shepherd utility, but it is of 1999 year. I'm not sure
that it is compatible with Windows XP Pro SP2. "Jim Macklin" wrote in message ... I don't think it does. I used the Intel active monitor, your mobo may have a monitor or you can use Motherboard Monitor 5 which is a free download. http://mbm.livewiredev.com/download.html "Dmitriy Kopnichev" wrote in message ... | Will EVEREST v1.1 alert me if the voltage will drop to the low end of the | range or below? What are the admissible "ranges" for "Voltage Values" for | "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"? | "Jim Macklin" wrote in message | ... | EVEREST will show you power required by the CPU and what | devices are installed. All power supplies have same voltage | standards. If you try to draw more power than rated power, | the voltage will drop to the low end of the range or below. | | There is no other method that I know of to plan in advance | of a purchase than reading the spec sheets and using a | calculator to add up the totals. | My EVEREST report on the CPU... | --------[ EVEREST Home Edition (c) 2003, 2004 Lavalys, | Inc. ]----------------------------------------------------------- | | Version | EVEREST v1.10.106 | Homepage | http://www.lavalys.com/ | Report Type Quick | Report | Computer | Generator | J.H.Macklin | Operating System | Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) | Date | 2004-09-07 | Time 01:30 | | | --------[ | CPU ]--------------------------------------------------------------------------------------------------------- | | CPU Properties: | CPU Type | Intel Celeron 4, 1700 MHz (17 x 100) | CPU Alias | Willamette Lite, Willamette-128 | CPU Stepping E0 | Instruction Set x86, | MMX, SSE, SSE2 | Original Clock 1700 | MHz | Engineering Sample No | L1 Trace Cache 12K | Instructions | L1 Data Cache 8 KB | L2 Cache 128 | KB (On-Die, ATC, Full-Speed) | | CPU Physical Info: | Package Type 478 | Pin uPGA | Package Size 3.50 | cm x 3.50 cm | Transistors 42 | million | Process Technology 6M, | 0.18 um, CMOS | Die Size 217 | mm2 | Core Voltage 1.75 | V | I/O Voltage 1.75 | V | Typical Power | 63.5 - 66.1 W | (depending on clock speed) | Maximum Power 84 - | 88 W (depending on clock speed) | | CPU Manufacturer: | Company Name | Intel Corporation | Product Information | http://www.intel.com/products/browse/processor.htm | | CPU Utilization: | CPU #1 6 % | | SNIP | ------------------------------------------------------------------------------------------------------------------------ | | The names of actual companies and products mentioned herein | may be the trademarks of their respective owners. | ***************************** | | | | "Dmitriy Kopnichev" wrote in message | ... | | How to know in the EVEREST if my PSU is enough for my | hardware? What are | | minimum admissible "Voltage Values" for "CPU Core", "+1.5 | V", "+3.3 V", "+5 | | V", "+12 V"? | | "Jim Macklin" wrote | in message | | ... | | Here are some numbers [for the OP] to indicate what you | | might need. You can get numbers for your system using | | EVEREST Home from www.lavalys.com Also check the | sources at | | Intel, AMD and Antec-Inc. | | http://www.epanorama.net/links/psu_computer.html | | and | | | http://computer.howstuffworks.com/fr...ndex_cases.htm | | **********************************************8 | | From PC Power and Cooling | | "Products: Power Supplies: | | How Much Power Do You Need? | | | | | | | | Component Requirement Line(s) Used | | AGP Video Card 30 - 50W +3.3V | | Average PCI Card 5 - 10W +5V | | 10/100 NIC 4W +3.3V | | SCSI Controller PCI Card 20W +3.3V and +5V | | Floppy Drive 5W +5V | | CD-ROM 10 - 25W +5V and +12V | | DVD-ROM 10 - 25W +5V and +12V | | CD-RW 10 - 25W +5V and +12V | | 7200rpm IDE Hard Drive 5 - 20W +5V and +12V | | 10,000rpm SCSI Drive 10 - 40W +5V and +12V | | Case/CPU Fans 3W (ea.) +12V | | Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V | | RAM 8W per 128MB +3.3V | | Pentium III Processor 38W +5V | | Pentium 4 Processor 70W +12V | | AMD Athlon Processor 70W +12V | | | | | | For overall power supply wattage, add the requirement | for | | each device in your system, then multiply by 1.8. (The | | multiplier takes into account that today's systems draw | | disproportionally on the +12V output. Furthermore, power | | supplies are more efficient and reliable when loaded to | | 30% - 70% of maximum capacity.)" | | ******************************************* | | | | | | My Celeron can use 88 Watts, a P4 could use much more. | | A motherboard can use 50 Watts | | A video card 50 Watts depending on model | | Each hard drive 25 Watts, an optical drive would use 25 | | Watts to read and maybe 40 Watts while writing. | | Each RAM stick uses 10 Watts or so/per 128 MB | | | | You need extra capacity to handle start-up surge loads. | | | | -- | | The people think the Constitution protects their rights; | | But government sees it as an obstacle to be overcome. | | | | | | | | "Nathan McNulty" wrote in message | | ... | | | That is still going to be too low for what you are | | running. You risk | | | data loss, system problem, and even damaged hardware | if | | you run them for | | | extended periods of time with too little power. | | | | | | ---- | | | Nathan McNulty | | | | | | Dmitriy Kopnichev wrote: | | | My PSU is 250 Watt. | | | "Nathan McNulty" wrote in message | | | ... | | | | | | It would help if you included info such as the | Wattage | | of your PSU. What | | | is up with all the odd questions anyways? I would | | suggest using at least | | | a 400 Watt PSU for that system though. | | | | | | ---- | | | Nathan McNulty | | | | | | | | | Dmitriy Kopnichev wrote: | | | | | | Hello | | | How to know if a power supply unit of my computer | case | | would supply | | | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM | | drives? I want to add a | | | third HDD. | | | | | | | | | | | | | | | | | | | | | |
#21
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
The voltage standards are in the ball park for what should be delivered to
the system. Your 3.3 rail should provide at least 3.3 volts continuous power, 5v rail 5 volts and the 12v rail 12. If it is dipping too far below this figure (10%) it clearly indicates a problem! As mentioned by a previous poster your best monitoring tool would probably be Mother Board Monitor. It is free and once set up can give you current voltages on the 3 main rails and CPU core on a realtime basis. You can set alarm levels where ever you would like them to be for voltage, fan and CPU. That way if for example you set the 3.3v alarm level at 3.0v an alarm will go off if you reach the 2.99v level. As a general rule of thumb modern day CPUs + devices require a great deal more steady power than a 250w PS can provide. If you are having problems with the system that have no specific cause it is often useful to try a more robust power supply. In your case I would go with at the very least a quality 350w unit - 400 would be better. I do not recall what CPU you are using but if it is in the P4 family or some of the more powerful AMD Bartons then it is not going to function reliably under load with that size PS. FWIW, Len "Dmitriy Kopnichev" wrote in message ... "Diagnostics" window shows actual "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V" "Voltage Values" in EVEREST. What are the admissible "ranges" for "Voltage Values" for "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"? Will EVEREST v1.1 alert me if the voltage will drop to the low end of the range or below? "Jim Macklin" wrote in message ... EVEREST will show you power required by the CPU and what devices are installed. All power supplies have same voltage standards. If you try to draw more power than rated power, the voltage will drop to the low end of the range or below. There is no other method that I know of to plan in advance of a purchase than reading the spec sheets and using a calculator to add up the totals. My EVEREST report on the CPU... --------[ EVEREST Home Edition (c) 2003, 2004 Lavalys, Inc. ]----------------------------------------------------------- Version EVEREST v1.10.106 Homepage http://www.lavalys.com/ Report Type Quick Report Computer Generator J.H.Macklin Operating System Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) Date 2004-09-07 Time 01:30 --------[ CPU ]--------------------------------------------------------------------------------------------------------- CPU Properties: CPU Type Intel Celeron 4, 1700 MHz (17 x 100) CPU Alias Willamette Lite, Willamette-128 CPU Stepping E0 Instruction Set x86, MMX, SSE, SSE2 Original Clock 1700 MHz Engineering Sample No L1 Trace Cache 12K Instructions L1 Data Cache 8 KB L2 Cache 128 KB (On-Die, ATC, Full-Speed) CPU Physical Info: Package Type 478 Pin uPGA Package Size 3.50 cm x 3.50 cm Transistors 42 million Process Technology 6M, 0.18 um, CMOS Die Size 217 mm2 Core Voltage 1.75 V I/O Voltage 1.75 V Typical Power 63.5 - 66.1 W (depending on clock speed) Maximum Power 84 - 88 W (depending on clock speed) CPU Manufacturer: Company Name Intel Corporation Product Information http://www.intel.com/products/browse/processor.htm CPU Utilization: CPU #1 6 % SNIP ------------------------------------------------------------------------------------------------------------------------ The names of actual companies and products mentioned herein may be the trademarks of their respective owners. ***************************** "Dmitriy Kopnichev" wrote in message ... | How to know in the EVEREST if my PSU is enough for my hardware? What are | minimum admissible "Voltage Values" for "CPU Core", "+1.5 V", "+3.3 V", "+5 | V", "+12 V"? | "Jim Macklin" wrote in message | ... | Here are some numbers [for the OP] to indicate what you | might need. You can get numbers for your system using | EVEREST Home from www.lavalys.com Also check the sources at | Intel, AMD and Antec-Inc. | http://www.epanorama.net/links/psu_computer.html | and | http://computer.howstuffworks.com/fr...ndex_cases.htm | **********************************************8 | From PC Power and Cooling | "Products: Power Supplies: | How Much Power Do You Need? | | | | Component Requirement Line(s) Used | AGP Video Card 30 - 50W +3.3V | Average PCI Card 5 - 10W +5V | 10/100 NIC 4W +3.3V | SCSI Controller PCI Card 20W +3.3V and +5V | Floppy Drive 5W +5V | CD-ROM 10 - 25W +5V and +12V | DVD-ROM 10 - 25W +5V and +12V | CD-RW 10 - 25W +5V and +12V | 7200rpm IDE Hard Drive 5 - 20W +5V and +12V | 10,000rpm SCSI Drive 10 - 40W +5V and +12V | Case/CPU Fans 3W (ea.) +12V | Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V | RAM 8W per 128MB +3.3V | Pentium III Processor 38W +5V | Pentium 4 Processor 70W +12V | AMD Athlon Processor 70W +12V | | | For overall power supply wattage, add the requirement for | each device in your system, then multiply by 1.8. (The | multiplier takes into account that today's systems draw | disproportionally on the +12V output. Furthermore, power | supplies are more efficient and reliable when loaded to | 30% - 70% of maximum capacity.)" | ******************************************* | | | My Celeron can use 88 Watts, a P4 could use much more. | A motherboard can use 50 Watts | A video card 50 Watts depending on model | Each hard drive 25 Watts, an optical drive would use 25 | Watts to read and maybe 40 Watts while writing. | Each RAM stick uses 10 Watts or so/per 128 MB | | You need extra capacity to handle start-up surge loads. | | -- | The people think the Constitution protects their rights; | But government sees it as an obstacle to be overcome. | | | | "Nathan McNulty" wrote in message | ... | | That is still going to be too low for what you are | running. You risk | | data loss, system problem, and even damaged hardware if | you run them for | | extended periods of time with too little power. | | | | ---- | | Nathan McNulty | | | | Dmitriy Kopnichev wrote: | | My PSU is 250 Watt. | | "Nathan McNulty" wrote in message | | ... | | | | It would help if you included info such as the Wattage | of your PSU. What | | is up with all the odd questions anyways? I would | suggest using at least | | a 400 Watt PSU for that system though. | | | | ---- | | Nathan McNulty | | | | | | Dmitriy Kopnichev wrote: | | | | Hello | | How to know if a power supply unit of my computer case | would supply | | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM | drives? I want to add a | | third HDD. | | | | | | | | | | |
#22
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How to know if a power supply unit would supply enouth power for 3HDDs, a DVD-ROM and a DVD-RAM drives?
Onboard voltage monitor is not sufficiently accurate to
measure voltages. No less expensive alternative to the 3.5 digit multimeter exists. Meter can also be used to calibrate onboard 'monitor' to monitor for voltage change. Signals between power supply and motherboard must work as defined. Voltages must measure in the upper 3/4 of limits from charts provided in previous discussions: "Computer doesnt start at all" in alt.comp.hardware on 10 Jan 2004 at http://tinyurl.com/2t69q or "I think my power supply is dead" in alt.comp.hardware on 5 Feb 2004 at http://tinyurl.com/yvbw9 Do not use the onboard monitor as a calibrated voltage measurement. It is a monitor that first must be calibrated. The 3.5 digit multimeter is required. Returning to the original question - a power supply is sufficiently sized if voltages remain well within limits even when computer simultaneously accesses as many peripherals as possible. Is a 250 watt supply sufficient? Depends. Many brand name manufacturer's 250 watt supplies are electrically equivalent to 350+ watt clone supplies. Third party power supply manufacturers play games with the watt numbers because too many computer assemblers have insufficient electrical knowledge. Only way to properly determine if power supply is sufficient without spending massive money on test equipment - the 3.5 digit multimeter and above cited test. Dmitriy Kopnichev wrote: My main board had a Shepherd utility, but it is of 1999 year. I'm not sure that it is compatible with Windows XP Pro SP2. "Jim Macklin" wrote in message ... I don't think it does. I used the Intel active monitor, your mobo may have a monitor or you can use Motherboard Monitor 5 which is a free download. http://mbm.livewiredev.com/download.html |
#23
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
Motherboard Monitor 5 shows that "Core 0" is low, in the yellow zone, about
1,58 V instead of 2 V. IDE devices do not consume "Core 0". Why is "Core 0" low? "Jim Macklin" wrote in message ... I don't think it does. I used the Intel active monitor, your mobo may have a monitor or you can use which is a free download. http://mbm.livewiredev.com/download.html "Dmitriy Kopnichev" wrote in message ... | Will EVEREST v1.1 alert me if the voltage will drop to the low end of the | range or below? What are the admissible "ranges" for "Voltage Values" for | "CPU Core", "+1.5 V", "+3.3 V", "+5 V", "+12 V"? | "Jim Macklin" wrote in message | ... | EVEREST will show you power required by the CPU and what | devices are installed. All power supplies have same voltage | standards. If you try to draw more power than rated power, | the voltage will drop to the low end of the range or below. | | There is no other method that I know of to plan in advance | of a purchase than reading the spec sheets and using a | calculator to add up the totals. | My EVEREST report on the CPU... | --------[ EVEREST Home Edition (c) 2003, 2004 Lavalys, | Inc. ]----------------------------------------------------------- | | Version | EVEREST v1.10.106 | Homepage | http://www.lavalys.com/ | Report Type Quick | Report | Computer | Generator | J.H.Macklin | Operating System | Microsoft Windows XP Professional 5.1.2600 (WinXP Retail) | Date | 2004-09-07 | Time 01:30 | | | --------[ | CPU ]--------------------------------------------------------------------------------------------------------- | | CPU Properties: | CPU Type | Intel Celeron 4, 1700 MHz (17 x 100) | CPU Alias | Willamette Lite, Willamette-128 | CPU Stepping E0 | Instruction Set x86, | MMX, SSE, SSE2 | Original Clock 1700 | MHz | Engineering Sample No | L1 Trace Cache 12K | Instructions | L1 Data Cache 8 KB | L2 Cache 128 | KB (On-Die, ATC, Full-Speed) | | CPU Physical Info: | Package Type 478 | Pin uPGA | Package Size 3.50 | cm x 3.50 cm | Transistors 42 | million | Process Technology 6M, | 0.18 um, CMOS | Die Size 217 | mm2 | Core Voltage 1.75 | V | I/O Voltage 1.75 | V | Typical Power | 63.5 - 66.1 W | (depending on clock speed) | Maximum Power 84 - | 88 W (depending on clock speed) | | CPU Manufacturer: | Company Name | Intel Corporation | Product Information | http://www.intel.com/products/browse/processor.htm | | CPU Utilization: | CPU #1 6 % | | SNIP | ------------------------------------------------------------------------------------------------------------------------ | | The names of actual companies and products mentioned herein | may be the trademarks of their respective owners. | ***************************** | | | | "Dmitriy Kopnichev" wrote in message | ... | | How to know in the EVEREST if my PSU is enough for my | hardware? What are | | minimum admissible "Voltage Values" for "CPU Core", "+1.5 | V", "+3.3 V", "+5 | | V", "+12 V"? | | "Jim Macklin" wrote | in message | | ... | | Here are some numbers [for the OP] to indicate what you | | might need. You can get numbers for your system using | | EVEREST Home from www.lavalys.com Also check the | sources at | | Intel, AMD and Antec-Inc. | | http://www.epanorama.net/links/psu_computer.html | | and | | | http://computer.howstuffworks.com/fr...ndex_cases.htm | | **********************************************8 | | From PC Power and Cooling | | "Products: Power Supplies: | | How Much Power Do You Need? | | | | | | | | Component Requirement Line(s) Used | | AGP Video Card 30 - 50W +3.3V | | Average PCI Card 5 - 10W +5V | | 10/100 NIC 4W +3.3V | | SCSI Controller PCI Card 20W +3.3V and +5V | | Floppy Drive 5W +5V | | CD-ROM 10 - 25W +5V and +12V | | DVD-ROM 10 - 25W +5V and +12V | | CD-RW 10 - 25W +5V and +12V | | 7200rpm IDE Hard Drive 5 - 20W +5V and +12V | | 10,000rpm SCSI Drive 10 - 40W +5V and +12V | | Case/CPU Fans 3W (ea.) +12V | | Motherboard (w/o CPU or RAM) 25 - 40W +3.3V and +5V | | RAM 8W per 128MB +3.3V | | Pentium III Processor 38W +5V | | Pentium 4 Processor 70W +12V | | AMD Athlon Processor 70W +12V | | | | | | For overall power supply wattage, add the requirement | for | | each device in your system, then multiply by 1.8. (The | | multiplier takes into account that today's systems draw | | disproportionally on the +12V output. Furthermore, power | | supplies are more efficient and reliable when loaded to | | 30% - 70% of maximum capacity.)" | | ******************************************* | | | | | | My Celeron can use 88 Watts, a P4 could use much more. | | A motherboard can use 50 Watts | | A video card 50 Watts depending on model | | Each hard drive 25 Watts, an optical drive would use 25 | | Watts to read and maybe 40 Watts while writing. | | Each RAM stick uses 10 Watts or so/per 128 MB | | | | You need extra capacity to handle start-up surge loads. | | | | -- | | The people think the Constitution protects their rights; | | But government sees it as an obstacle to be overcome. | | | | | | | | "Nathan McNulty" wrote in message | | ... | | | That is still going to be too low for what you are | | running. You risk | | | data loss, system problem, and even damaged hardware | if | | you run them for | | | extended periods of time with too little power. | | | | | | ---- | | | Nathan McNulty | | | | | | Dmitriy Kopnichev wrote: | | | My PSU is 250 Watt. | | | "Nathan McNulty" wrote in message | | | ... | | | | | | It would help if you included info such as the | Wattage | | of your PSU. What | | | is up with all the odd questions anyways? I would | | suggest using at least | | | a 400 Watt PSU for that system though. | | | | | | ---- | | | Nathan McNulty | | | | | | | | | Dmitriy Kopnichev wrote: | | | | | | Hello | | | How to know if a power supply unit of my computer | case | | would supply | | | enough power for 3 HDDs, a DVD-ROM and a DVD-RAM | | drives? I want to add a | | | third HDD. | | | | | | | | | | | | | | | | | | | | | |
#24
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How to know if a power supply unit would supply enouth power for 3HDDs, a DVD-ROM and a DVD-RAM drives?
Onboard voltage monitor is not sufficiently accurate to
measure voltages. No less expensive alternative to the 3.5 digit multimeter exists. Meter can also be used to calibrate onboard 'monitor' to monitor for voltage change. Put that meter directly on the CPU voltage to see what it really is. However that voltage is not a function of the power supply; irrelevant voltage reading when considering the original question. Meter is required to really know what that voltage is. Dmitriy Kopnichev wrote: Motherboard Monitor 5 shows that "Core 0" is low, in the yellow zone, about 1,58 V instead of 2 V. IDE devices do not consume "Core 0". Why is "Core 0" low? |
#25
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
Is that voltage a function of irrelevant voltage reading?
"w_tom" wrote in message ... Onboard voltage monitor is not sufficiently accurate to measure voltages. No less expensive alternative to the 3.5 digit multimeter exists. Meter can also be used to calibrate onboard 'monitor' to monitor for voltage change. Put that meter directly on the CPU voltage to see what it really is. However that voltage is not a function of the power supply; irrelevant voltage reading when considering the original question. Meter is required to really know what that voltage is. Dmitriy Kopnichev wrote: Motherboard Monitor 5 shows that "Core 0" is low, in the yellow zone, about 1,58 V instead of 2 V. IDE devices do not consume "Core 0". Why is "Core 0" low? |
#26
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How to know if a power supply unit would supply enouth power for 3HDDs, a DVD-ROM and a DVD-RAM drives?
Computer power supply puts 3.3, 5., and 12 volts into
motherboard. It does not create the 2 volts. Posted on 7 September were to previous discussions that details what comes out of power supply - including signals between that power supply and motherboard's power supply controller. Again, the multimeter is necessary to see or verify those voltages and signals. A motherboard voltage monitor is only a monitor. It must be calibrated which is but another reason why the multimeter is necessary. Dmitriy Kopnichev wrote: Is that voltage a function of irrelevant voltage reading? "w_tom" wrote in message ... Onboard voltage monitor is not sufficiently accurate to measure voltages. No less expensive alternative to the 3.5 digit multimeter exists. Meter can also be used to calibrate onboard 'monitor' to monitor for voltage change. Put that meter directly on the CPU voltage to see what it really is. However that voltage is not a function of the power supply; irrelevant voltage reading when considering the original question. Meter is required to really know what that voltage is. |
#27
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
Why does MBM 5 show Core 0 and Core 1 voltages? What is to blame for low
Core 0 voltage? "w_tom" wrote in message ... Computer power supply puts 3.3, 5., and 12 volts into motherboard. It does not create the 2 volts. Posted on 7 September were to previous discussions that details what comes out of power supply - including signals between that power supply and motherboard's power supply controller. Again, the multimeter is necessary to see or verify those voltages and signals. A motherboard voltage monitor is only a monitor. It must be calibrated which is but another reason why the multimeter is necessary. Dmitriy Kopnichev wrote: Is that voltage a function of irrelevant voltage reading? "w_tom" wrote in message ... Onboard voltage monitor is not sufficiently accurate to measure voltages. No less expensive alternative to the 3.5 digit multimeter exists. Meter can also be used to calibrate onboard 'monitor' to monitor for voltage change. Put that meter directly on the CPU voltage to see what it really is. However that voltage is not a function of the power supply; irrelevant voltage reading when considering the original question. Meter is required to really know what that voltage is. |
#28
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How to know if a power supply unit would supply enouth power for 3HDDs, a DVD-ROM and a DVD-RAM drives?
Numerous reasons could explain a low core voltage. One is
that the voltage monitor is built using low precision parts - less cost. Another may be a failure involving the CPU and CPU power supply. The latter says you actually have a failure. The former demonstrates why you don't yet have accurate numbers. IOW a low voltage is only suspected. With a multimeter, confirm those readings - both voltage into CPU and voltage feeding that CPU power supply. Further information is required to better answer your question. Dmitriy Kopnichev wrote: Why does MBM 5 show Core 0 and Core 1 voltages? What is to blame for low Core 0 voltage? "w_tom" wrote in message ... Computer power supply puts 3.3, 5., and 12 volts into motherboard. It does not create the 2 volts. Posted on 7 September were to previous discussions that details what comes out of power supply - including signals between that power supply and motherboard's power supply controller. Again, the multimeter is necessary to see or verify those voltages and signals. A motherboard voltage monitor is only a monitor. It must be calibrated which is but another reason why the multimeter is necessary. |
#29
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How to know if a power supply unit would supply enouth power for 3 HDDs, a DVD-ROM and a DVD-RAM drives?
What is the difference between "voltage into CPU and voltage feeding that
CPU power supply"? What is IOW abbreviation for? "w_tom" wrote in message ... Numerous reasons could explain a low core voltage. One is that the voltage monitor is built using low precision parts - less cost. Another may be a failure involving the CPU and CPU power supply. The latter says you actually have a failure. The former demonstrates why you don't yet have accurate numbers. IOW a low voltage is only suspected. With a multimeter, confirm those readings - both voltage into CPU and voltage feeding that CPU power supply. Further information is required to better answer your question. Dmitriy Kopnichev wrote: Why does MBM 5 show Core 0 and Core 1 voltages? What is to blame for low Core 0 voltage? "w_tom" wrote in message ... Computer power supply puts 3.3, 5., and 12 volts into motherboard. It does not create the 2 volts. Posted on 7 September were to previous discussions that details what comes out of power supply - including signals between that power supply and motherboard's power supply controller. Again, the multimeter is necessary to see or verify those voltages and signals. A motherboard voltage monitor is only a monitor. It must be calibrated which is but another reason why the multimeter is necessary. |
#30
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How to know if a power supply unit would supply enouth power for3 HDDs, a DVD-ROM and a DVD-RAM drives?
Notice different voltages. The main power supply is 3.3, 5,
and 12 volts (also -5 and -12). But a CPU wants a special voltage - maybe 1.8 or 2 or whatever. CPU programs an adjacent power supply to provide a customized voltage. Obviously it must program a CPU power supply built on the motherboard. This CPU supply is completely different from a main power supply that provides 5 or 12 volts to that CPU power supply. IOW - In Other Words Dmitriy Kopnichev wrote: What is the difference between "voltage into CPU and voltage feeding that CPU power supply"? What is IOW abbreviation for? "w_tom" wrote in message ... Numerous reasons could explain a low core voltage. One is that the voltage monitor is built using low precision parts - less cost. Another may be a failure involving the CPU and CPU power supply. The latter says you actually have a failure. The former demonstrates why you don't yet have accurate numbers. IOW a low voltage is only suspected. With a multimeter, confirm those readings - both voltage into CPU and voltage feeding that CPU power supply. Further information is required to better answer your question. |
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