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Am I limited to DDR 400?

post #1 of 10
Thread Starter 
My mother board accepts up to DDR 400. If I put faster mem in, will it run, and will I be able to oc it farther. IE, if I put in DDR 550, can I oc my fsb to 275 and leave my bios setting at ddr 400? That way the mem will run at stock speed.
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Wolfdale
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post #2 of 10
Quote:
Originally Posted by StepsAscend
My mother board accepts up to DDR 400. If I put faster mem in, will it run, and will I be able to oc it farther. IE, if I put in DDR 550, can I oc my fsb to 275 and leave my bios setting at ddr 400? That way the mem will run at stock speed.
Yep, anything higher than DDR400 needs to be overclocked on an A64
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Clevo P170HM
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post #3 of 10
Thread Starter 
So the advantage to faster memory is simply that I will be able to run higher fsb speeds without having to use a mem divider.
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post #4 of 10
Quote:
Originally Posted by StepsAscend
So the advantage to faster memory is simply that I will be able to run higher fsb speeds without having to use a mem divider.
Exactly, and also to get better performance from your memory as well, especially in benchmarks.
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Clevo P170HM
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post #5 of 10
Thread Starter 
Cool. Thanks for your help Ste.
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post #6 of 10
Is this the same with an INTEL board will i be able to run faster ram in it than 400mhz ?? ive never been to sure about this
post #7 of 10
Quote:
Originally Posted by ENTERPRISE1701
Is this the same with an INTEL board will i be able to run faster ram in it than 400mhz ?? ive never been to sure about this
Some boards will allow you to run faster than your FSB. This isn't generally recommended though as an Intel's Ram communicates with the CPU down the FSB. Therefore, running Ram faster than the FSB rate generally doesn't help very much.
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Clevo P170HM
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post #8 of 10
the good thing about DFI boards is you can get a modded BIOS to run ddr 500.
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post #9 of 10
Quote:
Originally Posted by Ste
Some boards will allow you to run faster than your FSB. This isn't generally recommended though as an Intel's Ram communicates with the CPU down the FSB. Therefore, running Ram faster than the FSB rate generally doesn't help very much.
I don't think he was asking about running the RAM faster than the fsb, just running anything greater than DDR400 on his Intel setup. In any case, yea, you can run RAM that is faster than DDR400 on your system. Since RAM faster than DDR400 is not officially recognized by JEDEC, you have to manually set your fsb to match the faster RAM by leaving the RAM/fsb ratio on 1:1 and just up the fsb.
    
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post #10 of 10
Quote:
Originally Posted by Cheetos316
I don't think he was asking about running the RAM faster than the fsb, just running anything greater than DDR400 on his Intel setup. In any case, yea, you can run RAM that is faster than DDR400 on your system. Since RAM faster than DDR400 is not officially recognized by JEDEC, you have to manually set your fsb to match the faster RAM by leaving the RAM/fsb ratio on 1:1 and just up the fsb.
Think I just read what I wanted to read there

And yes, providing you can increase the FSB on the board, you can run faster than DDR400
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Clevo P170HM
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