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post #21 of 25
Quote:
Originally Posted by mwl5apv View Post
ok thanks Sandman. Right now I am on my brothers computer as I'm running prim on my rig. As of now, prime95 has been running for 3 1/2 hours and still going with no problems. CPU/NB voltage is as I states at 1.2000v in the BIOS.

And when you say corrupt.... do you mean HWMonitor? Or windows? And PCprobe I assume is on the support disc I got with my motherboard correct?
I was meaning HWMonitor going corrupt.

Yes PCPII it is on the disc, I always go to the site to assure latest version even with this utility as they do update it.
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post #22 of 25
Thread Starter 
ok well, here is an update. After getting my cpu overclocked at 3.81Ghz @ 1.3125v in BIOS(1.344v under load with cpu llc enabled) no problem i ran into a little stability issue when overclocking the NB. I tried various different settings on the ref clock and multipliers with no avail. So I went through and did some more reading and research. Unfortunately with my setup and ambient conditions I came to the temperature wall.

Although I was able to stabilize 3.81Ghz on the borderline of temps( it maxed out at 55C and hovered around 52-54C) by itself, When I overclocked the NB, the added heat pushed me a little past the preferred temp. range

When I as unable to regain stability I did some more reading and research. And from the reading I have done, it seems the phenom ll chips prefer lower temps over higher voltages for stability. And the higher temps were indeed destabilizing the chips overclock.

So.... I started from scratch and so far have the CPU overclocked at 3.750Ghz @ 1.296v in BIOS(1.32-1.33v under load with cpu llc enabled) running prime95 for about 7 hours so far and still going. Max temp according to HWmonitor was at 52C and it is consistently hovering around 49-51C under 100% load. And this is after 100% load for over 7 hours, so thats a lot of heat inside that case.

-will the 3.75Ghz be much different than the 3.81Ghz OC in real time performance?
-would a slightly lower but much more stable overclock perform/benchmark better then a slightly higher but less stable overclock?


I will start to OC the NB once more once I pass 8-9 hours on the CPU test and will report back afterwards.

so what do you guys think? Sandman?
Edited by mwl5apv - 4/14/11 at 11:41am
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post #23 of 25
Quote:
Originally Posted by mwl5apv View Post
ok well, here is an update. After getting my cpu overclocked at 3.81Ghz @ 1.3125v in BIOS(1.344v under load with cpu llc enabled) no problem i ran into a little stability issue when overclocking the NB. I tried various different settings on the ref clock and multipliers with no avail. So I went through and did some more reading and research. Unfortunately with my setup and ambient conditions I came to the temperature wall.

Although I was able to stabilize 3.81Ghz on the borderline of temps( it maxed out at 55C and hovered around 52-54C) by itself, When I overclocked the NB, the added heat pushed me a little past the preferred temp. range

When I as unable to regain stability I did some more reading and research. And from the reading I have done, it seems the phenom ll chips prefer lower temps over higher voltages for stability. And the higher temps were indeed destabilizing the chips overclock.

So.... I started from scratch and so far have the CPU overclocked at 3.750Ghz @ 1.296v in BIOS(1.32-1.33v under load with cpu llc enabled) running prime95 for about 7 hours so far and still going. Max temp according to HWmonitor was at 52C and it is consistently hovering around 49-51C under 100% load. And this is after 100% load for over 7 hours, so thats a lot of heat inside that case.

-will the 3.75Ghz be much different than the 3.81Ghz OC in real time performance?
-would a slightly lower but much more stable overclock perform/benchmark better then a slightly higher but less stable overclock?


I will start to OC the NB once more once I pass 8-9 hours on the CPU test and will report back afterwards.

so what do you guys think? Sandman?
I doubt you'd see or feel any difference between those OC's. I'd run it right up to 55 -57c peak spike as it usually runs an average temp slightly lower like you described for the CPU Socket temp during a stress test. Normal running won't ever push temps that high anyway, only when stress testing.

I'd also incorporate the higher NB Freq into that setup as it will always give you more performance that you can see/feel depending what you use the machine for (like video editing). Even if this makes it run a slightly lower CPU Freq. Make sense? Example, if you HAD to lower the CPU Freq to 3.70-3.725GHz in able to stabilize the higher NB Freq would be something I'd do as your memory score would definitely have an advantage. Try it both ways and run MaxxMem II and look at the Memory score difference between different NB Freq settings (before the next stress test) than decide which one to go with and stabilize that setup.

By the way feel free to PM me if you like, I'm always happy to help those that ask!
Edited by The Sandman - 4/14/11 at 12:45pm
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post #24 of 25
Thread Starter 
prime95 stable after 8 hours. temps were the same as I posted earlier. Max was 52C and that was for a split second. And Sandman ygpm!
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post #25 of 25
Thread Starter 
ok everyone. Overclocking is almost complete! After running into what I described in earlier posts here is what I have.

CPU: 3.750Ghz @ 1.296v in BIOS with CPU LLC enabled means 1.32-1.33v under 100% load
CPU/NB: 2750mhz @ 1.20v in BIOS with CPU/NB LLC enabled.


However I had a few questions in regards to prime95. I have been told and read that priime95 doesnt test laarge FFT untill at least 12 hours into the test. But when I ran the test, prime passed the 4096k test about 10 hours in and restarted another loop. I then let it run until this morning giving me a total time of roughly 15hours stable.

Can someone explain to me my question regarding prime95 and its loop? Do I have to test it multiple loops? Why did mine run the way it did?
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