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How's this ram oc - First one! - Page 2

post #11 of 18
First of all... know the ICs and where your RAM is probably going to go.

I usually lower the timings one or two at a time (i.e. tCL, or tRCD, or tCL and tRP, one notch at a time) and stability test with HyperPi 32M and HCI Memtest. If I get instability, I may raise the voltage to see if it will help, and continue doing so until 1. I figure out it doesn't work or 2. it works.

At the end of the whole run I run memtest86+ to make sure I didn't wreck anything.
post #12 of 18
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
First of all... know the ICs and where your RAM is probably going to go.
and how do I do that AFAIK it's not something that's in the specs and searching the model number doesn't help. Is there some mystical chart somewhere that I've not managed to find?

Quote:
Originally Posted by xd_1771 View Post
I usually lower the timings one or two at a time (i.e. tCL, or tRCD, or tCL and tRP, one notch at a time) and stability test with HyperPi 32M and HCI Memtest. If I get instability, I may raise the voltage to see if it will help, and continue doing so until 1. I figure out it doesn't work or 2. it works.

At the end of the whole run I run memtest86+ to make sure I didn't wreck anything.
What about tRAS and tRC, do you just set them as per the formula in the OP or are those lowered one at a time untill unstable aswell? Many thanks.
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post #13 of 18
IC lists on the web, knowing your memory brand
Oh right the tRAS should optimally but not necessarily be tCL + tRCD + tRP; tRC is tRP + tRAS. Lower those separately, one at a time, 1-3 notches down at a time depending on how big the value usually is.
post #14 of 18
Thread Starter 
Quote:
Originally Posted by xd_1771 View Post
IC lists on the web, knowing your memory brand
Ok I'll have another look, the one's I've found so far are ancient and don't list newer RAM.

Quote:
Originally Posted by xd_1771 View Post
Lower those separately, one at a time, 1-3 notches down at a time depending on how big the value usually is.
Right cheers, off to work then.
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post #15 of 18
Thread Starter 
Found this on the corsair website, that would suggest Elpida IC?

Post 2 here seems to back that up.
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post #16 of 18
Oh, rev 2.3, not rev3. Looks like a type of Elpida IC. Probably a lower end one i.e. BDBG, not too suited for OC-ing.
post #17 of 18
Thread Starter 
Bugger, oh well, they were cheap.

This is now a spec me thread then

What's safe volts for these then so I can have a play in the meantime, still 1.9v?
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post #18 of 18
Elpida ICs are usually designed to be low voltage, though they are more tolerant than PSC
max it at 1.75
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