Simviation Forums

Hi all,
I'm running a 333fsb 2600+ cpu with two sticks of pc 2100 from crucial on dual channel.

I know that this processor runs best with memory that matches their fsb. What would happen if I change the memory setting from 133 to 166 on the bios? Will the chips go bad? Will changing the divisor on the Bios to make the memory run at 166 overclock other hardware automatically?

The reason I ask is because I went to www.buyaib.com where they sell some PC2700 chips and it says on there that some of their chips are pc2100 overclocked to pc2700 and they test them for 48hrs before shipping.

http://www.buyaib.com/sam2533pc27i.html
http://www.buyaib.com/kinpc184pin23.html

I finally overclocked the memory and did a stress test and so far the system hasn't crashed and I have even noticed that performance has increased noticeably.

The timings were at T-(RAS) 6, T-(RCD) 2, T-(RP)2 CAS2.5 when It was running at 266MHZ. After overclocking the memory to 333MHZ I noticed that by default it all went up to 8-3-3 CAS3.
I went in and changed everything back to 6-2-2 CAS 2 and I noticed that it made a difference when benchmarking, however; am I stressing the memory too much? Should I change it back to the SPD default 8-3-3 CAS3?


Any advice on this will be appreciated.

Any suggestions anyone?

sounds good i looked at the title and thought "nutter" but if it works it works

I recently upgraded to 512 from 256MB, the "new" stick was 2700, and was'nt happy running @2100 (The PC rating of the "old" stick) , so, I re-configured my BIOS and have been running with effectively overclocked 2100 RAM without a hitch for about 6 months now............


However, "Nutter" is a description that isn't even close to my mark.  :-*

Try it! - if you hear a bang, pop, hiss or see smoke from the back of your tower, I'd say it did'nt work.  ;D

I have PC 2700 RAM and I'm overclocking it a bit.

All I have to say is, stability. If your computer can't run stable with your RAM up that fast, don't do it.

Hi all,
I'm running a 333fsb 2600+ cpu with two sticks of pc 2100 from crucial on dual channel.

I know that this processor runs best with memory that matches their fsb. What would happen if I change the memory setting from 133 to 166 on the bios? Will the chips go bad? Will changing the divisor on the Bios to make the memory run at 166 overclock other hardware automatically?

The reason I ask is because I went to www.buyaib.com where they sell some PC2700 chips and it says on there that some of their chips are pc2100 overclocked to pc2700 and they test them for 48hrs before shipping.

http://www.buyaib.com/sam2533pc27i.html
http://www.buyaib.com/kinpc184pin23.html

I finally overclocked the memory and did a stress test and so far the system hasn't crashed and I have even noticed that performance has increased noticeably.

The timings were at T-(RAS) 6, T-(RCD) 2, T-(RP)2 CAS2.5 when It was running at 266MHZ. After overclocking the memory to 333MHZ I noticed that by default it all went up to 8-3-3 CAS3.
I went in and changed everything back to 6-2-2 CAS 2 and I noticed that it made a difference when benchmarking, however; am I stressing the memory too much? Should I change it back to the SPD default 8-3-3 CAS3?


Any advice on this will be appreciated.

Believe me, it is possible to downgrade memory performance regardless of the chips you use... The SPD can tell the mobo that a certain DIMM module is a CAS-2 DDR-2100, while the chips on it are DDR-2700 capable when running at CAS3 speed.

To be safe keep it at CAS3 when running on high speed...