1.5gb ram

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daniel40

New Member
can I put a Kingston 1 gig and adata 512mb sticks of ram in the same pc so I have 1.5gig of ram
both sticks are ddr2
 
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I tried it once, two ram with different size.. It appears to be ok, but one ram will eventually become useless for not quite so long..

someone said that to me is that true please reply
 
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Yes but you need to run the looser timings of the two sticks. Like if you have one stick of DDR2 800 cas 5 and a stick of 667 cas 5 you'd have to run 667. Sometimes the 667 will be stable at 800 but not always.

What are the speeds and timings of each?
 
It depends on the motherboard. If your motherboard only has 2 slots and if those 2 slots are dual channel and don't support flex mode, you can't. If there are 2 slots and they are single channel you can.

If you have 4 slots, you can, but only in single channel each, unless your motherboard supports flex mode.

If your board only supports dual channel, you can only have memory of the same capacity running together. They don't have to be the same frequency or timings.

Flex mode is the same as dual channel, but you can use different capacity memory. If you did it how you have it with 1 1GB stick and 1 512MB stick, there would be 512MB in dual channel on both sticks of memory, but the excess 512MB from the 1GB stick will be in single channel

Post up which motherboard you have, and we will be able to tell you for sure
 
It looks fine. The 512MB stick is a lot slower than the 1GB (266 vs 400) but that shouldn't be a big deal.
 
Cromewell said:
It looks fine. The 512MB stick is a lot slower than the 1GB (266 vs 400) but that shouldn't be a big deal.
Click to expand...
If it's actually that slower, wouldn't it be better just to stick the gig in and dump the 512? You'd think that your system would run faster if one gig was running at 800MHz vs. 1.5gig running at 533MHz.
 
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