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CL2.5 @ 400 > CL2.0 @ 333 doable?

O

ozihcs

Junior Member
Anyone know if this can be done?

Where I want to be is DDR2700 with low latency (CL2), and rather than buying 2x512MB DIMMS rated at this latency (they cost an arm and an eye) I was wondering what my chances are at taking a DDR3200 CL2.5 module and running it at DDR2700 CL2.0.

I am going to buy a new MB soon and am planning to go for nforce2 since I already have an XP1900+ (Palomino core, I believe) that I'd like to keep for a while yet. Since Nforce2 performs best with mem and CPU running at the same frequency I thought I'd unlock my palomino, up the FSB to 166 (yes, and lower multiplier - I am not insane.. yet.. 🙂) and get some nice 333 CL2 memory to go with it.

The price difference between Crusader PC2700/CL2/512 modules and TwinMOS PC3200/CL2.5/512MB is ~70USD where I live, so obviously there's money to be saved here. Big question is, will it work?

 
I guess it should work. Probably most PC2700 (rated CL2.5) will do CL2.0. Me, for instance, am running an Samsung PC2700 (DDR333) 512MB CL2.5 module at CL2 (2-5-3-3) at DDR356 speed without hickups or problems (tested with memtest86 and all other test programs) in my real-life environment.

I suggest going for Samsung and you should be happy.
 
I am doing that exact thing, my 2.5cas pc3200 is running at turbo settings 1t command on an epox mobo with a xp1600@1743mz
 
Trust me you will not see or notice a difference between CL2.5 or CL2 with DDR. If you were talking SDRAM that would be a different story.
 
Hey, good on you! 😀 You kept your multiplier and upped the FSB? What's your CPU temp, and how do you cool it? 😉
 
So in other words, get some quality CL2.5 rated DDR3200 memry and my chances are good that it'll run on CL2@333. Found a retailer that sells Samsung chips here, guess I'll keep an eye on their prices and stock. Thanks for the feedback, folks ! 🙂
 
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