Overclocking Memory

[tonymarcus]

Hello Chaps,

Just wondered as a rule of thumb with Quality branded Ram in a well ventilated case what is a rough overclock that memory can reach. e.g With some PC6400 which has a bus speed of 400Mhz (800DDR) what on average can the memory go to with a little over voltage.

Thanks

Tony

 

[Mondoman]

It really depends on the chips used. Since current Intel CPUs usually have the FSB as the bottleneck rather than the memory bus, it normally doesn't help much on such (dual channel) systems to run the memory faster than 1/2 the FSB datarate. For 1066 MHz FSB, that means DDR2-533.

 

[jsc]

It depends on the memory, but you usually can run the memory one speed bin faster (DDR2-533 to DDR2-667) by increasing the memory timing (for example, from 4-4-4-12 to 5-5-5-15).

 

[nel]

I happen to have a ddr2-533 and has a timing of 4-4-4-12 and I did overclocked it to ddr2-600 with the same timing.
Now, is it better if I change the timing to 5-5-5-15 and overclock to ddr2-667.
By the way, I have a Pentium 4 3.20 800fsb 65nm w/h
overclocked to 3.60 900fsb