I have 2x512mb sticks of pc3200 corsair value ram in dual channel. I managed to get them running error free at 440mhz @ 2.5-3-3-7 2.6v. Is this about the best Im gonna get outta it or is more possible.

Im a total noob when it comes to overclocking ram.

Nothing's broken until you choose not to fix it.

of course it is possible to get even higher. You can always increase the voltage a bit more and loosen the memory timings.

Sapphire PC-A9RD480Adv
Sapphire Radeon X850CF
AMD Athlon 3700+ 2.63GHz
1024MB 512X2 RAM
350W Acetech PSU 18A
300W SP PSU 16A

Fooling around with 2.5-3-3-9 or 2.5-3-3-11 might help.

Skip

well it was originally 2.5-3-3-8 but I lowered it to 7. so 9 or 11 is better? pls explain.

Nothing's broken until you choose not to fix it.

Skip brings up a good point. The last number in the timing (tRAS) can affect how high the memory bus speed can be run.

Generally, the tRAS number *should* be set within 1 (+/-) of the sum of the other 3. So with your default timings of 2.5-3-3-x, x *should* be between 7.5 & 9.5. Setting the tRAS within that range is considered 'optimal'. If you go lower than 7.5, you *may* gain a little performance, but you risk data corruption, plus you lower the bus speed the RAM can be run at stably. If you raise it higher than 9.5, performance *may* drop slightly, but you *should* be able to raise the memory bus speed higher.

You really have to experiment to see what happens. Try a program such as SuperPi...run the 1MB test with the memory at the default settings & see how many seconds it takes to complete it....use that number as your baseline. Then play with the timings & run the test again to see what happens.

These articles kinda backup what I wrote above:

http://articles.networktechs.com/1-p2.php

http://www.techpowerup.com/articles/overclocking/AMD/memory/131

You can get SuperPi here:

http://www.techpowerup.com/downloads/125

thanks for you help guys.

Nothing's broken until you choose not to fix it.