Memory pairing
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I have 2x512 MB of memory at a latency of 5-5-5-12. The question is can I add 2x1024 of the same latency and speed (800 MHZ) without damaging the system?
I am fighting against the Universe... Reference-Rick Cook
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I have 2x512 MB of memory at a latency of 5-5-5-12. The question is can I add 2x1024 of the same latency and speed (800 MHZ) without damaging the system?
I am fighting against the Universe... Reference-Rick Cook
Assuming your board has 4 slots, Yes. The only thing you want to make sure is that you put them in identically on both channels. Not installing them symetrically won't do any physical harm, but will force you out of dual channel mode and inflict a major performance hit.
-- If you view money as inherently evil, I view it as my duty to assist in making you more virtuous.
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Assuming your board has 4 slots, Yes. The only thing you want to make sure is that you put them in identically on both channels. Not installing them symetrically won't do any physical harm, but will force you out of dual channel mode and inflict a major performance hit.
-- If you view money as inherently evil, I view it as my duty to assist in making you more virtuous.
I have 4 slots and the 4 sticks of memory are paired (TWIN...)Is this a correct placement: 1GB-512MB-1GB-512MB? I have read on another forum that I should make some changes in BIOS for the best performance. Is this true?
I am fighting against the Universe... Reference-Rick Cook
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I have 4 slots and the 4 sticks of memory are paired (TWIN...)Is this a correct placement: 1GB-512MB-1GB-512MB? I have read on another forum that I should make some changes in BIOS for the best performance. Is this true?
I am fighting against the Universe... Reference-Rick Cook
You need to read your mobos documentation. The various brands don't have a consistent layout or color coding scheme. You want a 1G and a 512MB on each channel, and both 1Gs in the same place in it eg both in the first or both in the second slot for the channel. The BIOS probably be set to use official spec timings, which are potentially looser than your ram is rated at. YOu can change your board to match, but the gains from timing changes are very small and naming and layout are again cryptic and inconsistent between brands so you'll need to read your docs. If you're messing with settings the one that you probably can't leave at dimm specs is that with 2 dimms per channel you almost always need to use 2T instead of 1T, the bios should've done this for you though.
-- If you view money as inherently evil, I view it as my duty to assist in making you more virtuous.
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You need to read your mobos documentation. The various brands don't have a consistent layout or color coding scheme. You want a 1G and a 512MB on each channel, and both 1Gs in the same place in it eg both in the first or both in the second slot for the channel. The BIOS probably be set to use official spec timings, which are potentially looser than your ram is rated at. YOu can change your board to match, but the gains from timing changes are very small and naming and layout are again cryptic and inconsistent between brands so you'll need to read your docs. If you're messing with settings the one that you probably can't leave at dimm specs is that with 2 dimms per channel you almost always need to use 2T instead of 1T, the bios should've done this for you though.
-- If you view money as inherently evil, I view it as my duty to assist in making you more virtuous.
The motherboards slots are colored in 2 colors (blue-blue-black-black), so probably the example that you suggested (1GB-1GB-512MB-512MB) is the correct one.
I am fighting against the Universe... Reference-Rick Cook
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The motherboards slots are colored in 2 colors (blue-blue-black-black), so probably the example that you suggested (1GB-1GB-512MB-512MB) is the correct one.
I am fighting against the Universe... Reference-Rick Cook
read your manual, it's the only way you can be sure. I've had boards where slot1 of channel A and slot1 of channel B had one color, and the slot2's had a second. I've had boards where both slots of channel A had one color, and both slots of channel 2 the second. I've had boards where the ordering was CA-S1 CB-S1 CA-S2 CB-S2, and boards that were CA-S1 CA-S2 CB-S1 CB-S2. The color coding is useless across brands. That said, assuming your machine was originally put together correctly the 512's are in the first slot of each channel and you can just stick the 1G's into the two open slots.
-- If you view money as inherently evil, I view it as my duty to assist in making you more virtuous.