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Weird stability issues with the 965

post #1 of 32
Thread Starter 
I seem to have an extremely good chip, its prime95 stable for at least 4 hours (i havnt run it longer, because really, why?) at 3.7GHz and vcore of 1.29

However, if I overclock using the FSB, which I know nets better performance gains than just the multiplier, it loses stability when i have my ram running at the exact same speed (albeit with a different ratio). Prime95 wont crash, but i would get random memory read errors during games or anything cpu heavy, so i set the timings to auto and that seemed to fix it.

The confusing part though, is my ram is rated at DDR3 2000, and im talking about it losing stability with 8-8-8-24 timings at DDR3 1333. So is there something wrong with my RAM or am I just doing something completely wrong?

also, out of curiosity, yesterday i overclocked my cpu to 3.8GHz and it still hasnt crashed on me, and hasnt come close for that matter, and my voltage is still only at 1.35
post #2 of 32
I got 3.8Ghz with 1.364 IIRC
I would try a different RAM ratio, and update the BIOS for that motherboard, they have added LOADS of changes
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post #3 of 32
Thread Starter 
yeaaah, i should probably do that.. i havnt updated it since i bought it, I'm just paranoid that Ill brick my motherboard

I did try that with several ram ratios though.. it wouldnt blue screen or anything, programs would just crash with a 'the memory at location '--------------' could not be read' error.. thats the confusing bit
post #4 of 32
Overclocking using the reference clock will also raise your cpu/nb speed and HT link. So either try dropping the multi for those or add more volts.

Also I did some testing myself and found very very little gains using the reference clock. So small it wasn't worth it.
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post #5 of 32
Sorry I can't read... Ignore my previous comment.
Edited by ddcmdb - 5/28/11 at 4:57pm
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post #6 of 32
Thread Starter 
Quote:
Highest I've ever gotten my ram is 1776
that was a great year
but yeah, i know what you mean, i didnt expect to be able to hit 2000 lol, i just try to run low timing on lower frequencies

Quote:
Also I did some testing myself and found very very little gains using the reference clock. So small it wasn't worth it.
So i'd be better off just raising my multiplier?
post #7 of 32
Yep. You can raise the cpu/nb multi to the desired stable speed with multi's as well. I just set the ram to stock settings and work the cpu.

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post #8 of 32
Thread Starter 
Alrighty, I'll have to try pushing mine a little harder, I have a xigmatek s1283 coming in in a few days
2 questions though, you have the c3 version right? thats a pretty crazy clock for only 1.44
and what exactly does raising the multiplier on the nb do? i've never quite understood what it had to do with the cpu
post #9 of 32
cpu nb multiplier, will raise the cpunb speed, and that will help stabilize higher overclocks, aswell as giving more perfomance for the fast imc.
post #10 of 32
The cpu/nb, not to be confused with the chipset nb. It's basically the chips IMC (Integrated Memory Controller) overclocking it to around 2600 - 2800 will let you see improvements overall with your system.
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