Memory sync and dual channels

spoon805

Senior member
Aug 10, 2000
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Simple questions about ddr...

1) If I plan to use an XP 2100+, which I think is at 266 Mhz, should I use PC2100 or PC2700? According to what everyone is telling me, it is ideal to sync the memory with the cpu. However, at the same time, I would like to use this memory effective when I do upgrade to a 333 Mhz cpu and would not like the system to slack because I bought slower memory.

2) If I did go with pc2700 on a 266Mhz cpu, do you think the diminished performance is minimal, tolerable, or terrible?

3) Lastly, all these questions come from my future rig based of a nForce chipset with dual memory channels. If I only put one stick of ram in the machine, will I see a reduced performance when compared with putting only one stick in a single channel memory bus mobo?

Sorry if I sound a little fuzzy. I historically use Intel chips and non-ddr memory (RDRAM, SDRAM). This is all new ground for me. Thanks.
 

microAmp

Diamond Member
Jul 5, 2000
5,988
110
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1) 2100+ is a 266 FSB, since you plan to go to a faster bus down the road, go for the PC2700 or better. The PC3200 can run at PC2700 speed and have a chance to run at CAS 2.0 instead of PC2700 running at 2.5 CAS. Same goes for the PC2700 at PC2100 speed and more agressive CAS.

2) PC2700 will give minimal performace increase.

3) If I read your question right, the performace would be the same.