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Killa_concept's "help me try to hit 3ghz" thread (opty 165)

post #1 of 36
Thread Starter 
I'm currently tweaking my new rig (the one in my specs) and am stable at 2.85ghz... I'm trying to push it to 3.0ghz, but with the little amount of A64 overclocking knowledge that I have (the only previous OCing I've done is with my old amd 2500+ rig, and that didn't require anything more than upping the fsb), I'm finding it a tad difficult...

So, currently my settings for the 2.85ghz OC are as follow:

General settings:
FSB bus freq: 317
LDT/FSB freq ratio: x3.0
CPU/FSB freq ratio: x9.0
DRAM freq (DRAM/FSB): 3/4 (150mhz)

Volts:
CPU: 1.425V (though CPU-z and MBM5 recognize it as 1.39v )
LDT volt: 1.2V (stock)
Chipset: 1.6V (.1V over stock)
DRAM: 2.9V (.1V over stock)

Timings:
3-CAS latency
4-RAS-to-CAS delay
4-RAS Precharge
10-Act-to-Precharge delay
10-Row Cycle time
14-Row refresh cycle time
(fairly sure the rest don't have much effect)

The cpu temp is around 43-46C when I'm running 2 instances of Prime95 (1 to each core, each using 700MB) which I'm fairly sure is reasonably cool... I've tried running it at 2.9ghz on these settings but failed after 2 minutes... any suggestions as to how I can tweak it up to a stable 3.0ghz?
post #2 of 36
Thread Starter 
ok... nevermind... that was rather stupid of me...

I upped the cpu voltage to 1.5v and pushed it to 2.9ghz

I'll prime it overnight and tweak it a bit more in the morning... Please make suggestions on possible changes I could make to my settings that could improve performance
post #3 of 36
well a bump on the ht(LDT) voltage to 1.25 would probably help at this point. After a few weeks you will probably beable to run your oc a little lower on the vcore.
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post #4 of 36
take out your other stick of ram. you're going to kill your opty by running two different sticks.

also the 0616 takes quite a bit of voltage at first to push it to 3 GHz. i had to run it w/ 1.58v originally until it broke in. then i have it dropped now to 1.5v and its stable like a cheetah.
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post #5 of 36
Just out of curiosity, what are your temps @1.5vcore??
    
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post #6 of 36
Thread Starter 
Quote:
Originally Posted by mudd View Post
take out your other stick of ram. you're going to kill your opty by running two different sticks.
Sorry, I take it you were looking at my system specs? thats my old rig... Im using a dual channel kit of 2x1GB ballistix ddr500

I guess its about time I updated it huh?
post #7 of 36
Thread Starter 
Update!

ok so while Priming it overnight at 2.9GHz, it appearantly was fine for a good 2 or so hours but then the 2nd instance of Prime95 started to say "ERROR: Illegal Sumout, Possible Hardware failure, restarting test" over and over until it exceeded the number of warnings... and the 1st instance just ran for the rest of the night while the second was halted.... I believe it ran about 54-55C during the testing...

How do I go abouts making it stable? I'll up the LDT to the next setting (1.3V)... should I up the Vcore anymore? And what is up with MBM5 and CPUZ always recognizing the Vcore as lower than I set it? MBM5 and CPUZ register the same voltage... should I base it off my BIOS or MBM5+CPUZ??
post #8 of 36
I used to get errors running two instances of prime until I d/l orthos try that and see if you get different results. That's kinda high temps too for an operton. Try loosened timings and 1.45 vcore and see if you can run the 2.9...
good luck

http://sp2004.fre3.com/
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post #9 of 36
Thread Starter 
I guess I'll try the orthos... I tried 2 instances of prime95 (700MB each) with 1.55v vcore, 1.3v ldt, and the side panel off (was running 41-45C)

then 43 minutes into the test, one halted saying "FATAL ERROR: Rounding was 0.5, expected less than 0.4 Hardware failure detected"

Any further suggestions guys?
post #10 of 36
Wow big difference...You must not have very good flow through there...need to borrow a dremel?? Nice work on your oc
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