AMD - DDR2 1066 ... AMD - multipliers

Ruger22C

Golden Member
Sep 22, 2006
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~~(Due to AMD CPU limitation, DDR2 1066 is supported by AM2+/AM3 CPU for one DIMM per channel only)

Does this mean that I should get DDR2 800 instead?

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Also, what are the memory multipliers used on AMD boards?
What is the stock multiplier on the Phenom 920?


Thanks.

Moved to appropriate forum - Moderator Rubycon
 

Martimus

Diamond Member
Apr 24, 2007
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I think this would be a better question for the Memory section, but I will answer part of you question anyway.

DDR2 1066 will work at 800 speeds if necessary. If you are getting more than 2 DIMMs, then it would be cheaper to just get 4 DDR2 800 DIMMs than 4 DDR2 1066 DIMMs; but the performance would be the same. If you are getting a pair of DIMMs, then the DDR2 1066 DIMMs should run at full speed.

As for the multiplier; it is different for each processor. AMD uses a frequency divider for RAM speed, so it would be a division of the CPU processor speed. Since each processor has a different frequency, the dividers are different for each processor.
 

SunnyD

Belgian Waffler
Jan 2, 2001
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www.neftastic.com
You can always "overclock" the ram so to speak... 4 dimms will work at 1066 but it's a matter of helping the memory controller to do so.