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Help with Ram OC

post #1 of 4
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So I reached the desired overclock for my cpu and am now looking to overclock my ram. Its this cheap stuff:http://www.newegg.com/Product/Produc...82E16820211066
Its currently set at 533 mhz in my bios so its running at 322.5 and when I bump it up to 667 it doesnt pass bios. Tried bumping up the voltage one increment and same problem. Im slowly learning about how to oc ram with adjusting the timings incrementally and what not, so how should I get it stable at 430? Is it possible with this ram? Thanks in advance
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post #2 of 4
if you have the timming on auto set them to you ddr2 800 timmings
post #3 of 4
Quote:
Originally Posted by noobdown View Post
if you have the timming on auto set them to you ddr2 800 timmings
I think he said he has it set to DDR2 533, and wants to know how to get it stable at the DDR2 667 setting since it won't load when he tries.

The easiest way to do it is to loosen all your timings to their highest value in the BIOS, set the vDIMM to whatever the recommended voltage is for your RAM and see if it works. If it doesn't, give the RAM another 0.1v. Still won't work? Then you're out of luck.

Assuming it loads just by loosening your timings all the way, then your next step is to selectively tighten (lower) the timings one at a time. Start with the most important timing, tCL (CAS Latency). Then move on to the tRCD, tRP, tRAS, and tRC in that order. You can then try tightening the other timings if you want, or set the remaining timings to Auto. Except the command rate, lock that at 2T.

Let us know if you get it to work.
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White Whale
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post #4 of 4
You're overclocking the wrong way. Would you overclock the CPU by increasing the multiplier (pretend it's unlocked); of course not, you increase the FSB. Same with the memory - lower your CPU multiplier, then slowly increase the FSB.

It will help to loosen all timings as far as is possible. Use memtest for stability test (3 iterations of #5 is the equivalent of stressing a cpu for 30mins on orthos - not rock hard stable, but pretty good).
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