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#1
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ATT: w_tom. PC dead but MOBO light on???????
Take the power supply by itself or take case only to a reputable pc shop,
they'll check youre system while you wait,usually free of charge... "p.mc" wrote: (Snip/Tom replied) "w_tom" wrote in message ups.com... In but a minute with a 3.5 digit multimeter, trim the list of suspects down to only power supply or motherboard, or ..... That mains testing light cannot report anything useful because numbers are required. Light says power cord connects to AC mains. Light does not say any voltage is sufficient. Only meter numbers can say that. Start by measuring voltage on purple wire by pressing meter probes into 20 pin nylon connector for purple wire and to any black wire (or touch chassis). With computer powered off (and light still illuminated), that number must exceed 4.87 (and it probably will). ------------------------------------------------------------------------------------------ (My Test Results) http://i81.photobucket.com/albums/j2...multimeter.jpg (Tested with these settings and positions on multimeter) http://i81.photobucket.com/albums/j2.../PCfulload.jpg (all connections and peripherals connected and light still illuminated) ****5.7**** PURPLE Next take the number for green wire both before and when power switch is pressed. That number should be above 2.0 volts and drop to less than 0.8 volts when switch is pressed. What happens here is very informative. ****0.02...both switched and unswitched **** GREEN Next, the gray wire. It must rise to well above 2.4 volts within second of the power switch pressed. I suspect either voltage will not move or will rise and then fall. ****0.01**** GREY Now measure any red, orange and yellow wires when switch is pressed. Assuming the green wire voltage did drop, then each voltage here should rise up (and then will probably fall). Any voltage that does not rise up, then look for a short circuit for that voltage on motherboard. If all voltages do rise up, then within a second, each voltage must achieve more than 3.23, 4.87, or 11.7. ****0.47*** RED (un/switched - swithched) ****0.30**** ORANGE (un/switched - swithched) ****1.19**** YELLOW (un/switched - swithched) Information from those quick measurements either make it obvious which is the suspect or post those numbers here for better analysis. Regards p.mc (original message) Hi I've been getting the BSOD for the last couple of months and I thought It may have been my DVD/RW drive, (sorry no info because of first sentence) but a couple of days ago I was converting an .avi to .vob, (DVDsanta)...and when I went to check on it my PC was dead. The fuse in the kettle lead was ok so I opened up the tower and seen that the light on the MOBO was on, so I took out my HDD's and disconnected everything except the 20 pin supply to the MOBO and tower and CPU fans, but to my dismay when I pushed the power button on my PC the fans didn't kick in (1...does there have to be a HDD with the OS installed for the fans to work?) So I'm under the impression that either the power supply is knackered (2...but why is the MOBO light on?) or The MOBO is knackered, but then again I'm no expert and was hoping some tech buff could help in solving my problem (3...could the power supply have failed but have enough power for the MOBO light and nothing else??) I know the simple answer is to take it to a PC repair shop but I'd rather save money "as we all do" if someone may help me solve this. MOBO: ASUS A7A266 Power supply: FSP group inc Model #: FSP250-60GTV (PF) WinXP Home SP1 A few piccys of the MOBO and Power supply http://i81.photobucket.com/albums/j2...A7A266MOBO.jpg http://i81.photobucket.com/albums/j2...SMOBOLight.jpg http://i81.photobucket.com/albums/j2...s/P1023151.jpg "Thanks" -- Regards p.mc |
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#2
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ATT: w_tom. PC dead but MOBO light on???????
-- "Thanks for the info Andrew" I must state that I am interested in the fault findind aspect of the problem and was waiting for a response from "w_tom", as this subject has been quite extensively discussed already further down in the posts as you may well see, I look upon it as a project as I am already looking to buy a new machine for my needs. I'm just trying to learn a little as I go and if I can't do it myself, then I'll have it repaired proffesionaly to retire it for the kids to use, thanks for your comments though, I'm sure it benefits others too. Regards p.mc "Andrew E." wrote in message ... Take the power supply by itself or take case only to a reputable pc shop, they'll check youre system while you wait,usually free of charge... "p.mc" wrote: (Snip/Tom replied) "w_tom" wrote in message ups.com... In but a minute with a 3.5 digit multimeter, trim the list of suspects down to only power supply or motherboard, or ..... That mains testing light cannot report anything useful because numbers are required. Light says power cord connects to AC mains. Light does not say any voltage is sufficient. Only meter numbers can say that. Start by measuring voltage on purple wire by pressing meter probes into 20 pin nylon connector for purple wire and to any black wire (or touch chassis). With computer powered off (and light still illuminated), that number must exceed 4.87 (and it probably will). ------------------------------------------------------------------------------------------ (My Test Results) http://i81.photobucket.com/albums/j2...multimeter.jpg (Tested with these settings and positions on multimeter) http://i81.photobucket.com/albums/j2.../PCfulload.jpg (all connections and peripherals connected and light still illuminated) ****5.7**** PURPLE Next take the number for green wire both before and when power switch is pressed. That number should be above 2.0 volts and drop to less than 0.8 volts when switch is pressed. What happens here is very informative. ****0.02...both switched and unswitched **** GREEN Next, the gray wire. It must rise to well above 2.4 volts within second of the power switch pressed. I suspect either voltage will not move or will rise and then fall. ****0.01**** GREY Now measure any red, orange and yellow wires when switch is pressed. Assuming the green wire voltage did drop, then each voltage here should rise up (and then will probably fall). Any voltage that does not rise up, then look for a short circuit for that voltage on motherboard. If all voltages do rise up, then within a second, each voltage must achieve more than 3.23, 4.87, or 11.7. ****0.47*** RED (un/switched - swithched) ****0.30**** ORANGE (un/switched - swithched) ****1.19**** YELLOW (un/switched - swithched) Information from those quick measurements either make it obvious which is the suspect or post those numbers here for better analysis. Regards p.mc (original message) Hi I've been getting the BSOD for the last couple of months and I thought It may have been my DVD/RW drive, (sorry no info because of first sentence) but a couple of days ago I was converting an .avi to .vob, (DVDsanta)...and when I went to check on it my PC was dead. The fuse in the kettle lead was ok so I opened up the tower and seen that the light on the MOBO was on, so I took out my HDD's and disconnected everything except the 20 pin supply to the MOBO and tower and CPU fans, but to my dismay when I pushed the power button on my PC the fans didn't kick in (1...does there have to be a HDD with the OS installed for the fans to work?) So I'm under the impression that either the power supply is knackered (2...but why is the MOBO light on?) or The MOBO is knackered, but then again I'm no expert and was hoping some tech buff could help in solving my problem (3...could the power supply have failed but have enough power for the MOBO light and nothing else??) I know the simple answer is to take it to a PC repair shop but I'd rather save money "as we all do" if someone may help me solve this. MOBO: ASUS A7A266 Power supply: FSP group inc Model #: FSP250-60GTV (PF) WinXP Home SP1 A few piccys of the MOBO and Power supply http://i81.photobucket.com/albums/j2...A7A266MOBO.jpg http://i81.photobucket.com/albums/j2...SMOBOLight.jpg http://i81.photobucket.com/albums/j2...s/P1023151.jpg "Thanks" -- Regards p.mc |
#3
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ATT: w_tom. PC dead but MOBO light on???????
Hi p. mc,
Although I'm late jumping in on this thread, I have been keeping track of it. This would be difficult to t-shoot over the telephone in real time, let alone in a newsgroup. For some excellent hardware info. (including power supplies) go to your local library, and check out a copy of Scott Mueller's book Upgrading & Repairing PC's. I think he's just releasing the 17th edition--so it's been around a while. Beware, it may be *more* than you want to know (1000+ pages). -- Curt BD-MVBT http://dundats.mvps.org/ http://dundats.proboards27.com/index.cgi http://www.aumha.org/ "p.mc" wrote in message ... | | | -- | "Thanks for the info Andrew" | | I must state that I am interested in the fault findind aspect of the problem | and was waiting for a response from "w_tom", as this subject has been quite | extensively discussed already further down in the posts as you may well see, | I look upon it as a project as I am already looking to buy a new machine for | my needs. | I'm just trying to learn a little as I go and if I can't do it myself, then | I'll have it repaired proffesionaly to retire it for the kids to use, thanks | for your comments though, I'm sure it benefits others too. | | | Regards | p.mc | | | "Andrew E." wrote in message | ... | Take the power supply by itself or take case only to a reputable pc shop, | they'll check youre system while you wait,usually free of charge... | | "p.mc" wrote: | | (Snip/Tom replied) | "w_tom" wrote in message | ups.com... | In but a minute with a 3.5 digit multimeter, trim the list of | suspects down to only power supply or motherboard, or ..... That mains | testing light cannot report anything useful because numbers are | required. | | Light says power cord connects to AC mains. Light does not say any | voltage is sufficient. Only meter numbers can say that. Start by | measuring voltage on purple wire by pressing meter probes into 20 pin | nylon connector for purple wire and to any black wire (or touch | chassis). With computer powered off (and light still illuminated), that | number must exceed 4.87 (and it probably will). | ------------------------------------------------------------------------------------------ | | (My Test Results) | http://i81.photobucket.com/albums/j2...multimeter.jpg | (Tested with these settings and positions on multimeter) | | http://i81.photobucket.com/albums/j2.../PCfulload.jpg | (all connections and peripherals connected and light still illuminated) | | ****5.7**** PURPLE | | Next take the number | for green wire both before and when power switch is pressed. That | number should be above 2.0 volts and drop to less than 0.8 volts when | switch is pressed. What happens here is very informative. | | ****0.02...both switched and unswitched **** GREEN | | Next, the gray wire. It must rise to well above 2.4 volts within | second of the power switch pressed. I suspect either voltage will not | move or will rise and then fall. | | ****0.01**** GREY | | Now measure any red, orange and yellow wires when switch is pressed. | Assuming the green wire voltage did drop, then each voltage here | should rise up (and then will probably fall). Any voltage that does | not rise up, then look for a short circuit for that voltage on | motherboard. If all voltages do rise up, then within a second, each | voltage must achieve more than 3.23, 4.87, or 11.7. | | ****0.47*** RED (un/switched - swithched) | ****0.30**** ORANGE (un/switched - swithched) | ****1.19**** YELLOW (un/switched - swithched) | | Information from those quick measurements either make it obvious | which is the suspect or post those numbers here for better analysis. | | | Regards | p.mc | | (original message) | | Hi | | I've been getting the BSOD for the last couple of months and I thought | It | may have been my DVD/RW drive, (sorry no info because of first | sentence) | but | a couple of days ago I was converting an .avi to .vob, (DVDsanta)...and | when | I went to check on it my PC was dead. | | The fuse in the kettle lead was ok so I opened up the tower and seen | that | the light on the MOBO was on, so I took out my HDD's and disconnected | everything except the 20 pin supply to the MOBO and tower and CPU fans, | but | to my dismay when I pushed the power button on my PC the fans didn't | kick | in | (1...does there have to be a HDD with the OS installed for the fans to | work?) So I'm under the impression that either the power supply is | knackered | (2...but why is the MOBO light on?) or The MOBO is knackered, but then | again | I'm no expert and was hoping some tech buff could help in solving my | problem | (3...could the power supply have failed but have enough power for the | MOBO | light and nothing else??) | | I know the simple answer is to take it to a PC repair shop but I'd | rather | save money "as we all do" if someone may help me solve this. | | MOBO: ASUS A7A266 | Power supply: FSP group inc | Model #: FSP250-60GTV (PF) | WinXP Home SP1 | | A few piccys of the MOBO and Power supply | | http://i81.photobucket.com/albums/j2...A7A266MOBO.jpg | | http://i81.photobucket.com/albums/j2...SMOBOLight.jpg | | http://i81.photobucket.com/albums/j2...s/P1023151.jpg | | "Thanks" | | -- | | Regards | p.mc | | | | | |
#4
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ATT: w_tom. PC dead but MOBO light on???????
Hi Curt
Thanks for the info, my local library is only 100 yards from my front door. :-) As you say it's a mind blowing subject on the issue of buying a PSU to suit the needs of a particularly specified machine you want it to support. Below are just a few examples of what info I've been studying lately. Some say a 300 - 350watt PSU is sufficient for the most demanding of machines in today's market, although a PSU calculator will tell you exactly what wattage PSU you require from the components and peripherals installed...etc for your particular machine, which tends to be a lot higher than 350watt in my case for a new machine, but doesn't explain that it's calculated sum is what the machine would require if all it's organs (shall we say) were running at full load at the same time, but in reality for the majority, that wouldn't be the case. It's quite stimulating reading, and after all's said and done you have to make an informed decision from the pro's and con's of it all. Excellent forums http://www.silentpcreview.com/forums/viewforum.php?f=6 Handy sleuth http://www.hardwaresecrets.com/article/370 PSU calculator and good info http://extreme.outervision.com/psucalculator.jsp Very informative site http://tomshardware.co.uk/ -- Regards p.mc "Curt Christianson" wrote in message ... Hi p. mc, Although I'm late jumping in on this thread, I have been keeping track of it. This would be difficult to t-shoot over the telephone in real time, let alone in a newsgroup. For some excellent hardware info. (including power supplies) go to your local library, and check out a copy of Scott Mueller's book Upgrading & Repairing PC's. I think he's just releasing the 17th edition--so it's been around a while. Beware, it may be *more* than you want to know (1000+ pages). -- Curt BD-MVBT http://dundats.mvps.org/ http://dundats.proboards27.com/index.cgi http://www.aumha.org/ "p.mc" wrote in message ... | | | -- | "Thanks for the info Andrew" | | I must state that I am interested in the fault finding aspect of the problem | and was waiting for a response from "w_tom", as this subject has been quite | extensively discussed already further down in the posts as you may well see, | I look upon it as a project as I am already looking to buy a new machine for | my needs. | I'm just trying to learn a little as I go and if I can't do it myself, then | I'll have it repaired professionally to retire it for the kids to use, thanks | for your comments though, I'm sure it benefits others too. | | | Regards | p.mc | | | "Andrew E." wrote in message | ... | Take the power supply by itself or take case only to a reputable pc shop, | they'll check youre system while you wait,usually free of charge... | | "p.mc" wrote: | | (Snip/Tom replied) | "w_tom" wrote in message | ups.com... | In but a minute with a 3.5 digit multimeter, trim the list of | suspects down to only power supply or motherboard, or ..... That mains | testing light cannot report anything useful because numbers are | required. | | Light says power cord connects to AC mains. Light does not say any | voltage is sufficient. Only meter numbers can say that. Start by | measuring voltage on purple wire by pressing meter probes into 20 pin | nylon connector for purple wire and to any black wire (or touch | chassis). With computer powered off (and light still illuminated), that | number must exceed 4.87 (and it probably will). | ------------------------------------------------------------------------------------------ | | (My Test Results) | http://i81.photobucket.com/albums/j2...multimeter.jpg | (Tested with these settings and positions on multimeter) | | http://i81.photobucket.com/albums/j2.../PCfulload.jpg | (all connections and peripherals connected and light still illuminated) | | ****5.7**** PURPLE | | Next take the number | for green wire both before and when power switch is pressed. That | number should be above 2.0 volts and drop to less than 0.8 volts when | switch is pressed. What happens here is very informative. | | ****0.02...both switched and unswitched **** GREEN | | Next, the gray wire. It must rise to well above 2.4 volts within | second of the power switch pressed. I suspect either voltage will not | move or will rise and then fall. | | ****0.01**** GREY | | Now measure any red, orange and yellow wires when switch is pressed. | Assuming the green wire voltage did drop, then each voltage here | should rise up (and then will probably fall). Any voltage that does | not rise up, then look for a short circuit for that voltage on | motherboard. If all voltages do rise up, then within a second, each | voltage must achieve more than 3.23, 4.87, or 11.7. | | ****0.47*** RED (un/switched - swithched) | ****0.30**** ORANGE (un/switched - swithched) | ****1.19**** YELLOW (un/switched - swithched) | | Information from those quick measurements either make it obvious | which is the suspect or post those numbers here for better analysis. | | | Regards | p.mc | | (original message) | | Hi | | I've been getting the BSOD for the last couple of months and I thought | It | may have been my DVD/RW drive, (sorry no info because of first | sentence) | but | a couple of days ago I was converting an .avi to .vob, (DVDsanta)...and | when | I went to check on it my PC was dead. | | The fuse in the kettle lead was ok so I opened up the tower and seen | that | the light on the MOBO was on, so I took out my HDD's and disconnected | everything except the 20 pin supply to the MOBO and tower and CPU fans, | but | to my dismay when I pushed the power button on my PC the fans didn't | kick | in | (1...does there have to be a HDD with the OS installed for the fans to | work?) So I'm under the impression that either the power supply is | knackered | (2...but why is the MOBO light on?) or The MOBO is knackered, but then | again | I'm no expert and was hoping some tech buff could help in solving my | problem | (3...could the power supply have failed but have enough power for the | MOBO | light and nothing else??) | | I know the simple answer is to take it to a PC repair shop but I'd | rather | save money "as we all do" if someone may help me solve this. | | MOBO: ASUS A7A266 | Power supply: FSP group inc | Model #: FSP250-60GTV (PF) | WinXP Home SP1 | | A few piccys of the MOBO and Power supply | | http://i81.photobucket.com/albums/j2...A7A266MOBO.jpg | | http://i81.photobucket.com/albums/j2...SMOBOLight.jpg | | http://i81.photobucket.com/albums/j2...s/P1023151.jpg | | "Thanks" | | -- | | Regards | p.mc | | | | | |
#5
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ATT: w_tom. PC dead but MOBO light on???????
p. mc,
Thanks--those are some good sites. Check out Scott's book(s)--they are really good. I've been using them as a reference for several years now. For a new machine in todays world (P4's, kick*ss video, several HD's etc), 400 watt or even more is certainly not out of the question. Good luck, and post back if need be. -- Curt BD-MVBT http://dundats.mvps.org/ http://www.aumha.org/ "p.mc" wrote in message ... Hi Curt Thanks for the info, my local library is only 100 yards from my front door. :-) As you say it's a mind blowing subject on the issue of buying a PSU to suit the needs of a particularly specified machine you want it to support. Below are just a few examples of what info I've been studying lately. Some say a 300 - 350watt PSU is sufficient for the most demanding of machines in today's market, although a PSU calculator will tell you exactly what wattage PSU you require from the components and peripherals installed...etc for your particular machine, which tends to be a lot higher than 350watt in my case for a new machine, but doesn't explain that it's calculated sum is what the machine would require if all it's organs (shall we say) were running at full load at the same time, but in reality for the majority, that wouldn't be the case. It's quite stimulating reading, and after all's said and done you have to make an informed decision from the pro's and con's of it all. Excellent forums http://www.silentpcreview.com/forums/viewforum.php?f=6 Handy sleuth http://www.hardwaresecrets.com/article/370 PSU calculator and good info http://extreme.outervision.com/psucalculator.jsp Very informative site http://tomshardware.co.uk/ -- Regards p.mc "Curt Christianson" wrote in message ... Hi p. mc, Although I'm late jumping in on this thread, I have been keeping track of it. This would be difficult to t-shoot over the telephone in real time, let alone in a newsgroup. For some excellent hardware info. (including power supplies) go to your local library, and check out a copy of Scott Mueller's book Upgrading & Repairing PC's. I think he's just releasing the 17th edition--so it's been around a while. Beware, it may be *more* than you want to know (1000+ pages). -- Curt BD-MVBT http://dundats.mvps.org/ http://dundats.proboards27.com/index.cgi http://www.aumha.org/ "p.mc" wrote in message ... | | | -- | "Thanks for the info Andrew" | | I must state that I am interested in the fault finding aspect of the problem | and was waiting for a response from "w_tom", as this subject has been quite | extensively discussed already further down in the posts as you may well see, | I look upon it as a project as I am already looking to buy a new machine for | my needs. | I'm just trying to learn a little as I go and if I can't do it myself, then | I'll have it repaired professionally to retire it for the kids to use, thanks | for your comments though, I'm sure it benefits others too. | | | Regards | p.mc | | | "Andrew E." wrote in message | ... | Take the power supply by itself or take case only to a reputable pc shop, | they'll check youre system while you wait,usually free of charge... | | "p.mc" wrote: | | (Snip/Tom replied) | "w_tom" wrote in message | ups.com... | In but a minute with a 3.5 digit multimeter, trim the list of | suspects down to only power supply or motherboard, or ..... That mains | testing light cannot report anything useful because numbers are | required. | | Light says power cord connects to AC mains. Light does not say any | voltage is sufficient. Only meter numbers can say that. Start by | measuring voltage on purple wire by pressing meter probes into 20 pin | nylon connector for purple wire and to any black wire (or touch | chassis). With computer powered off (and light still illuminated), that | number must exceed 4.87 (and it probably will). | ------------------------------------------------------------------------------------------ | | (My Test Results) | http://i81.photobucket.com/albums/j2...multimeter.jpg | (Tested with these settings and positions on multimeter) | | http://i81.photobucket.com/albums/j2.../PCfulload.jpg | (all connections and peripherals connected and light still illuminated) | | ****5.7**** PURPLE | | Next take the number | for green wire both before and when power switch is pressed. That | number should be above 2.0 volts and drop to less than 0.8 volts when | switch is pressed. What happens here is very informative. | | ****0.02...both switched and unswitched **** GREEN | | Next, the gray wire. It must rise to well above 2.4 volts within | second of the power switch pressed. I suspect either voltage will not | move or will rise and then fall. | | ****0.01**** GREY | | Now measure any red, orange and yellow wires when switch is pressed. | Assuming the green wire voltage did drop, then each voltage here | should rise up (and then will probably fall). Any voltage that does | not rise up, then look for a short circuit for that voltage on | motherboard. If all voltages do rise up, then within a second, each | voltage must achieve more than 3.23, 4.87, or 11.7. | | ****0.47*** RED (un/switched - swithched) | ****0.30**** ORANGE (un/switched - swithched) | ****1.19**** YELLOW (un/switched - swithched) | | Information from those quick measurements either make it obvious | which is the suspect or post those numbers here for better analysis. | | | Regards | p.mc | | (original message) | | Hi | | I've been getting the BSOD for the last couple of months and I thought | It | may have been my DVD/RW drive, (sorry no info because of first | sentence) | but | a couple of days ago I was converting an .avi to .vob, (DVDsanta)...and | when | I went to check on it my PC was dead. | | The fuse in the kettle lead was ok so I opened up the tower and seen | that | the light on the MOBO was on, so I took out my HDD's and disconnected | everything except the 20 pin supply to the MOBO and tower and CPU fans, | but | to my dismay when I pushed the power button on my PC the fans didn't | kick | in | (1...does there have to be a HDD with the OS installed for the fans to | work?) So I'm under the impression that either the power supply is | knackered | (2...but why is the MOBO light on?) or The MOBO is knackered, but then | again | I'm no expert and was hoping some tech buff could help in solving my | problem | (3...could the power supply have failed but have enough power for the | MOBO | light and nothing else??) | | I know the simple answer is to take it to a PC repair shop but I'd | rather | save money "as we all do" if someone may help me solve this. | | MOBO: ASUS A7A266 | Power supply: FSP group inc | Model #: FSP250-60GTV (PF) | WinXP Home SP1 | | A few piccys of the MOBO and Power supply | | http://i81.photobucket.com/albums/j2...A7A266MOBO.jpg | | http://i81.photobucket.com/albums/j2...SMOBOLight.jpg | | http://i81.photobucket.com/albums/j2...s/P1023151.jpg | | "Thanks" | | -- | | Regards | p.mc | | | | | |
#6
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ATT: w_tom. PC dead but MOBO light on???????
Hi Curt
Yeah I'll definitely check that out. BTW this is the specs for the new machine I'll probably purchase. It's geared more for the gaming enthusiast, as I'm sure the kids will like ( "me too", but I'm sure it's overkill for TW PGA Tour) but also it's future proofed and there's lots of processing power and memory for video editing and particularly audio orientated stuff, 'cause I do production cd's for a theatre company (SFX). I'm just doing the sound tech for a musical called "Like I've never been gone" at present for a community theatre group, it's about Billy fury's early days and showing in the Gladstone theatre (Wirral) with the original Fourmost performing throughout the show if anyone's interested take a look at the link. http://www.dinglecommunitytheatre.co.uk/ (New PC Specs) Processor (CPU) AMD ATHLONT 64 X2 5000+ (2.6GHz) 2 x 512K L2 Cache (Socket AM2) Memory (RAM) 1024 MB CORSAIR XMS2 800MHz - LIFETIME WARRANTY! (2x512MB) Motherboard ASUS M2R32-MVP: Express 3200, DUAL DDR II, S-ATA II, 2 PCI Operating System WinXP Pro SP2 USB 6 x USB 2.0 PORTS Hard Disk 80GB SERIAL ATA II HARD DRIVE WITH 8MB CACHE (7200rpm) (already got 300gb & 250gb SATA HDD's but not sata2, I'll have to look into that) 1st Optical Drive 18x +/- DVD WRITER (8x +/- Dual Lyr) (Lightscribe) (40x CD-RW) 2nd Optical Drive 18x +/- DVD WRITER (8x +/- Dual Lyr) (Lightscribe) (40x CD-RW) Graphics Card 512MB RADEON X1950 CROSSFIRE EDITION + DVI + TV-OUT 2nd Graphics Card 512MB RADEON X1950XTX PCI Express + DVI + TV-OUT Sound Card Sound Blaster® X-FiT Fatal1ty FPS 7.1 + Black front kit Network Facilities 2 WIRELESS 108Mbps CARDS (ONE SPARE FOR OTHER PC) Floppy Disk Drive 1.44MB - 3.5" Floppy Disk Drive Case Stylish Silver/Black Sigma case + 2 front USB Power Supply & cooling 700W Quiet Quad Rail PSU incl Case Fan & CPU Cooler (the 600W may do the job as well??) Firewire & Video Editing ONBOARD 1394 FIREWIRE PORT Monitor WIDESCREEN 22 INCH TFT SIL/BLACK 1680 x 1050 5MS DVI Keyboard & Mouse Logitech® Internet Keyboard + Hotkeys Mouse Beige Logitech® Premium Optical Mouse Speakers CREATIVE INSPIRE 7.1 T7900 SPEAKER SYSTEM Surge Protection 2 x Belkin 4 Socket 2M Surge Protector Webcam & VoIP Logitech® QuickCam® Messenger USB ---------------------------------------------------------------- -- Regards p.mc "Curt Christianson" wrote in message ... p. mc, Thanks--those are some good sites. Check out Scott's book(s)--they are really good. I've been using them as a reference for several years now. For a new machine in todays world (P4's, kick*ss video, several HD's etc), 400 watt or even more is certainly not out of the question. Good luck, and post back if need be. -- Curt BD-MVBT http://dundats.mvps.org/ http://www.aumha.org/ "p.mc" wrote in message ... Hi Curt Thanks for the info, my local library is only 100 yards from my front door. :-) As you say it's a mind blowing subject on the issue of buying a PSU to suit the needs of a particularly specified machine you want it to support. Below are just a few examples of what info I've been studying lately. Some say a 300 - 350watt PSU is sufficient for the most demanding of machines in today's market, although a PSU calculator will tell you exactly what wattage PSU you require from the components and peripherals installed...etc for your particular machine, which tends to be a lot higher than 350watt in my case for a new machine, but doesn't explain that it's calculated sum is what the machine would require if all it's organs (shall we say) were running at full load at the same time, but in reality for the majority, that wouldn't be the case. It's quite stimulating reading, and after all's said and done you have to make an informed decision from the pro's and con's of it all. Excellent forums http://www.silentpcreview.com/forums/viewforum.php?f=6 Handy sleuth http://www.hardwaresecrets.com/article/370 PSU calculator and good info http://extreme.outervision.com/psucalculator.jsp Very informative site http://tomshardware.co.uk/ -- Regards p.mc "Curt Christianson" wrote in message ... Hi p. mc, Although I'm late jumping in on this thread, I have been keeping track of it. This would be difficult to t-shoot over the telephone in real time, let alone in a newsgroup. For some excellent hardware info. (including power supplies) go to your local library, and check out a copy of Scott Mueller's book Upgrading & Repairing PC's. I think he's just releasing the 17th edition--so it's been around a while. Beware, it may be *more* than you want to know (1000+ pages). -- Curt BD-MVBT http://dundats.mvps.org/ http://dundats.proboards27.com/index.cgi http://www.aumha.org/ "p.mc" wrote in message ... | | | -- | "Thanks for the info Andrew" | | I must state that I am interested in the fault finding aspect of the problem | and was waiting for a response from "w_tom", as this subject has been quite | extensively discussed already further down in the posts as you may well see, | I look upon it as a project as I am already looking to buy a new machine for | my needs. | I'm just trying to learn a little as I go and if I can't do it myself, then | I'll have it repaired professionally to retire it for the kids to use, thanks | for your comments though, I'm sure it benefits others too. | | | Regards | p.mc | | | "Andrew E." wrote in message | ... | Take the power supply by itself or take case only to a reputable pc shop, | they'll check youre system while you wait,usually free of charge... | | "p.mc" wrote: | | (Snip/Tom replied) | "w_tom" wrote in message | ups.com... | In but a minute with a 3.5 digit multimeter, trim the list of | suspects down to only power supply or motherboard, or ..... That mains | testing light cannot report anything useful because numbers are | required. | | Light says power cord connects to AC mains. Light does not say any | voltage is sufficient. Only meter numbers can say that. Start by | measuring voltage on purple wire by pressing meter probes into 20 pin | nylon connector for purple wire and to any black wire (or touch | chassis). With computer powered off (and light still illuminated), that | number must exceed 4.87 (and it probably will). | ------------------------------------------------------------------------------------------ | | (My Test Results) | http://i81.photobucket.com/albums/j2...multimeter.jpg | (Tested with these settings and positions on multimeter) | | http://i81.photobucket.com/albums/j2.../PCfulload.jpg | (all connections and peripherals connected and light still illuminated) | | ****5.7**** PURPLE | | Next take the number | for green wire both before and when power switch is pressed. That | number should be above 2.0 volts and drop to less than 0.8 volts when | switch is pressed. What happens here is very informative. | | ****0.02...both switched and unswitched **** GREEN | | Next, the gray wire. It must rise to well above 2.4 volts within | second of the power switch pressed. I suspect either voltage will not | move or will rise and then fall. | | ****0.01**** GREY | | Now measure any red, orange and yellow wires when switch is pressed. | Assuming the green wire voltage did drop, then each voltage here | should rise up (and then will probably fall). Any voltage that does | not rise up, then look for a short circuit for that voltage on | motherboard. If all voltages do rise up, then within a second, each | voltage must achieve more than 3.23, 4.87, or 11.7. | | ****0.47*** RED (un/switched - swithched) | ****0.30**** ORANGE (un/switched - swithched) | ****1.19**** YELLOW (un/switched - swithched) | | Information from those quick measurements either make it obvious | which is the suspect or post those numbers here for better analysis. | | | Regards | p.mc | | (original message) | | Hi | | I've been getting the BSOD for the last couple of months and I thought | It | may have been my DVD/RW drive, (sorry no info because of first | sentence) | but | a couple of days ago I was converting an .avi to .vob, (DVDsanta)...and | when | I went to check on it my PC was dead. | | The fuse in the kettle lead was ok so I opened up the tower and seen | that | the light on the MOBO was on, so I took out my HDD's and disconnected | everything except the 20 pin supply to the MOBO and tower and CPU fans, | but | to my dismay when I pushed the power button on my PC the fans didn't | kick | in | (1...does there have to be a HDD with the OS installed for the fans to | work?) So I'm under the impression that either the power supply is | knackered | (2...but why is the MOBO light on?) or The MOBO is knackered, but then | again | I'm no expert and was hoping some tech buff could help in solving my | problem | (3...could the power supply have failed but have enough power for the | MOBO | light and nothing else??) | | I know the simple answer is to take it to a PC repair shop but I'd | rather | save money "as we all do" if someone may help me solve this. | | MOBO: ASUS A7A266 | Power supply: FSP group inc | Model #: FSP250-60GTV (PF) | WinXP Home SP1 | | A few piccys of the MOBO and Power supply | | http://i81.photobucket.com/albums/j2...A7A266MOBO.jpg | | http://i81.photobucket.com/albums/j2...SMOBOLight.jpg | | http://i81.photobucket.com/albums/j2...s/P1023151.jpg | | "Thanks" | | -- | | Regards | p.mc | | | | | |
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