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#16
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Memory Slots
you might be better
off with getting rid of that 256 chip and move that 1 gig chip to the first slot or replace the 256 with an "identical" ram chip to that of the 1 gig you have now. two identical chips may provide your system with a boost via dual channel memory capabilities. -- db·´¯`·...¸)))º DatabaseBen, Retired Professional - Systems Analyst - Database Developer - Accountancy - Veteran of the Armed Forces - Microsoft Partner - @hotmail.com ~~~~~~~~~~"share the nirvana" - dbZen "Dale" wrote in message ... Does it matter in which slot a stick is installed ? Belarc Advisor reports: Slot 'J6G1' has 256 MB Slot 'J6G2' has 1024 MB I read somewhere to 'install the largest capacity memory module' in each memory socket. The 256MB 266MHZ PC2100 is OEM (Gateway). 1024MB 333MHZ PC2700 added later, but purchased from Gateway. Thank You -- dale |
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#17
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Memory Slots
you might be better
off with getting rid of that 256 chip and move that 1 gig chip to the first slot or replace the 256 with an "identical" ram chip to that of the 1 gig you have now. two identical chips may provide your system with a boost via dual channel memory capabilities. -- db·´¯`·...¸)))º DatabaseBen, Retired Professional - Systems Analyst - Database Developer - Accountancy - Veteran of the Armed Forces - Microsoft Partner - @hotmail.com ~~~~~~~~~~"share the nirvana" - dbZen "Dale" wrote in message ... Does it matter in which slot a stick is installed ? Belarc Advisor reports: Slot 'J6G1' has 256 MB Slot 'J6G2' has 1024 MB I read somewhere to 'install the largest capacity memory module' in each memory socket. The 256MB 266MHZ PC2100 is OEM (Gateway). 1024MB 333MHZ PC2700 added later, but purchased from Gateway. Thank You -- dale |
#18
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Memory Slots
"Mr. Smith" wrote in message ... On Thu, 11 Jun 2009 17:10:01 -0700, Dale wrote: Does it matter in which slot a stick is installed ? Belarc Advisor reports: Slot 'J6G1' has 256 MB Slot 'J6G2' has 1024 MB I read somewhere to 'install the largest capacity memory module' in each memory socket. The 256MB 266MHZ PC2100 is OEM (Gateway). 1024MB 333MHZ PC2700 added later, but purchased from Gateway. Thank You Why bother asking here? This is totally hardware dependent and has nothing to do with the OS Your hardware question is perfectly welcome in this *hardware* newsgroup. Ignore our resident mentally ill obsessive 13 year old ****wit. |
#19
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Memory Slots
If I could ask a follow-up question.
I have an older system, nvidia geforce2 board, amd sempron 3300 @ 1.8mhz and one 512m stick on memory, ddr333 64x64. I have an extra stick 1gb, pc3200 ddr @ 400mhz. Can I run both or not and will the pc3200 run ok in the system? thanks for any help/advise, "db" databaseben at hotmail dot com wrote in message ... you might be better off with getting rid of that 256 chip and move that 1 gig chip to the first slot or replace the 256 with an "identical" ram chip to that of the 1 gig you have now. two identical chips may provide your system with a boost via dual channel memory capabilities. -- db·´¯`·...¸)))º DatabaseBen, Retired Professional - Systems Analyst - Database Developer - Accountancy - Veteran of the Armed Forces - Microsoft Partner - @hotmail.com ~~~~~~~~~~"share the nirvana" - dbZen "Dale" wrote in message ... Does it matter in which slot a stick is installed ? Belarc Advisor reports: Slot 'J6G1' has 256 MB Slot 'J6G2' has 1024 MB I read somewhere to 'install the largest capacity memory module' in each memory socket. The 256MB 266MHZ PC2100 is OEM (Gateway). 1024MB 333MHZ PC2700 added later, but purchased from Gateway. Thank You -- dale |
#20
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Memory Slots
If I could ask a follow-up question.
I have an older system, nvidia geforce2 board, amd sempron 3300 @ 1.8mhz and one 512m stick on memory, ddr333 64x64. I have an extra stick 1gb, pc3200 ddr @ 400mhz. Can I run both or not and will the pc3200 run ok in the system? thanks for any help/advise, "db" databaseben at hotmail dot com wrote in message ... you might be better off with getting rid of that 256 chip and move that 1 gig chip to the first slot or replace the 256 with an "identical" ram chip to that of the 1 gig you have now. two identical chips may provide your system with a boost via dual channel memory capabilities. -- db·´¯`·...¸)))º DatabaseBen, Retired Professional - Systems Analyst - Database Developer - Accountancy - Veteran of the Armed Forces - Microsoft Partner - @hotmail.com ~~~~~~~~~~"share the nirvana" - dbZen "Dale" wrote in message ... Does it matter in which slot a stick is installed ? Belarc Advisor reports: Slot 'J6G1' has 256 MB Slot 'J6G2' has 1024 MB I read somewhere to 'install the largest capacity memory module' in each memory socket. The 256MB 266MHZ PC2100 is OEM (Gateway). 1024MB 333MHZ PC2700 added later, but purchased from Gateway. Thank You -- dale |
#21
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Memory Slots
L.S. wrote:
If I could ask a follow-up question. I have an older system, nvidia geforce2 board, amd sempron 3300 @ 1.8mhz and one 512m stick on memory, ddr333 64x64. I have an extra stick 1gb, pc3200 ddr @ 400mhz. Can I run both or not and will the pc3200 run ok in the system? thanks for any help/advise, Do you mean "Nforce2 chipset" perhaps ? It sounds like you're running the Sempron at 11 x 166 ? I think the multiplier is 11, and the bus is supposed to be 200MHz input clock. Most of the Nforce2 boards are dual channel. There is one which has the distinction of being single channel, but as near as I can tell, that is a logical rather than a physical implementation (there are two buses, but they function as one). Most Nforce2 have two data buses, and three address busses. There are three memory slots. Each memory slot gets its own address bus, which reduces loading effects when all slots are occupied. Address bus is a limiting factor in memory bus design (tends to crap out, before the data bus does). One data bus has two sticks (the slots are close together). The third stick is on the second data bus (it has a larger separation from the other slots). First, we'll take a "usual" example. A person buys a pair of matched DIMMs. This would be dual channel. It is dual channel through the entire address space. ----- 512MB ----- 512MB ----- With Nforce2, all that matters is that the total memory in each channel is the same. That gives dual channel performance through the entire address space. In the above example diagram, I could use an 8 chip 512MB stick for one slot, and a 16 chip 512MB stick for the other slot, and it would still be dual channel (unlike some other dual channel designs). Now, with your case. Here, one channel has 1024MB total, and the other has 512MB total. The memory operates dual channel, for the first 512MB of each channel. So that is 512MB+512MB of dual channel space, plus the left over 512MB at the top of the memory map, running single channel. This is "composite" operating mode. I actually modified a copy of memtest86+ source code, to verify the composite behavior. On my Nforce2 board, I got about 1400MB/sec for the lower 2/3rds of the memory and about 900MB/sec for the upper 1/3rd. I used memtest86+ to probe blocks of memory and measure the bandwidth. ----- 1024MB ----- 512MB ----- To make the channels match, you could do one of these two configurations. Here, the total RAM in each channel matches. ----- 1024MB ----- 1024MB ----- 512MB ----- 1024MB ----- 512MB ----- The Nforce2 chipset can use a 1GB (1024MB) stick, but it must be low density. That means you should not buy the stick of DDR memory from Ebay, as there is a lot of 1GB high density RAM for sale on there. This is the definition (16) 64Mx8 (dual rank, low density, Crucial, Kingston, Newegg sources OK etc) (16) 128Mx4 (single rank, high density, no-name modules from Ebay, the memory chip brand is immaterial to the issue) Note that the "128Mx64" you see in a lot of adverts on the Internet, tells you nothing about the composition of each memory chip. So if you say "but my module is 128Mx64", it could either be high or low density, and still have those overall dimensions. Nforce2 will "half-detect" high density 1GB modules. Many of the Ebay pages selling that RAM, will mention the "high density" label as a warning. I cannot think of a good reason to buy it. I did research the modules, and they are "JEDEC approved", but that doesn't mean the memory is universally applicable and works well. It is a product which should be avoided, especially if you're going to resell it later. If your stick is (16) 64Mx8, then it will be properly detected as 1GB. I had 2x1GB in my Nforce2 before I retired it. (Some people have experienced issues with more than 2GB installed, so if you try a total of 2.5GB for example, it might not work. That is some kind of memory map problem, but I'm not at all sure how common that is across all motherboard brands. I've read accounts of people who used more memory, but I don't know how they did it.) With regard to speed, I would expect no problems at DDR333 setting. But running at DDR400 can mean trouble. All you can do, is test it, and see what happens. I've run DDR400 with a couple kits of RAM, but it was CAS2 stuff. I've even run 3x512MB at 2-2-2-6 DDR400, just like the early Anandtech articles on Nforce2, so it can work. But Nforce2 is *picky* about RAM, so always test the memory before attempting to boot WinXP. Memtest86+ from memtest.org is one program you can use. HTH, Paul |
#22
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Memory Slots
Please disregard, started new post.
"L.S." wrote in message ... If I could ask a follow-up question. I have an older system, nvidia geforce2 board, amd sempron 3300 @ 1.8mhz and one 512m stick on memory, ddr333 64x64. I have an extra stick 1gb, pc3200 ddr @ 400mhz. Can I run both or not and will the pc3200 run ok in the system? thanks for any help/advise, "db" databaseben at hotmail dot com wrote in message ... you might be better off with getting rid of that 256 chip and move that 1 gig chip to the first slot or replace the 256 with an "identical" ram chip to that of the 1 gig you have now. two identical chips may provide your system with a boost via dual channel memory capabilities. -- db·´¯`·...¸)))º DatabaseBen, Retired Professional - Systems Analyst - Database Developer - Accountancy - Veteran of the Armed Forces - Microsoft Partner - @hotmail.com ~~~~~~~~~~"share the nirvana" - dbZen "Dale" wrote in message ... Does it matter in which slot a stick is installed ? Belarc Advisor reports: Slot 'J6G1' has 256 MB Slot 'J6G2' has 1024 MB I read somewhere to 'install the largest capacity memory module' in each memory socket. The 256MB 266MHZ PC2100 is OEM (Gateway). 1024MB 333MHZ PC2700 added later, but purchased from Gateway. Thank You -- dale |
#23
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Memory Slots
Please disregard, started new post.
"L.S." wrote in message ... If I could ask a follow-up question. I have an older system, nvidia geforce2 board, amd sempron 3300 @ 1.8mhz and one 512m stick on memory, ddr333 64x64. I have an extra stick 1gb, pc3200 ddr @ 400mhz. Can I run both or not and will the pc3200 run ok in the system? thanks for any help/advise, "db" databaseben at hotmail dot com wrote in message ... you might be better off with getting rid of that 256 chip and move that 1 gig chip to the first slot or replace the 256 with an "identical" ram chip to that of the 1 gig you have now. two identical chips may provide your system with a boost via dual channel memory capabilities. -- db·´¯`·...¸)))º DatabaseBen, Retired Professional - Systems Analyst - Database Developer - Accountancy - Veteran of the Armed Forces - Microsoft Partner - @hotmail.com ~~~~~~~~~~"share the nirvana" - dbZen "Dale" wrote in message ... Does it matter in which slot a stick is installed ? Belarc Advisor reports: Slot 'J6G1' has 256 MB Slot 'J6G2' has 1024 MB I read somewhere to 'install the largest capacity memory module' in each memory socket. The 256MB 266MHZ PC2100 is OEM (Gateway). 1024MB 333MHZ PC2700 added later, but purchased from Gateway. Thank You -- dale |
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