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Another CPU/NB voltage question

post #1 of 9
Thread Starter 
Well, it is that time of the year again, and my bedroom is freeeeeeezing, hence, I'm trying to maximize my OC. LOL.

I just ran prime again for 8 hours last night, 1.47 Vcore, and had no problems with Prime 95 at 4.1 GHZ on my 965. However, I am shooting for maximum overall performance, and my CPU/NB speed is at 2200, with no voltage upticks..soooooooo, I want to see how I can maximize those speeds without adding any more vcore to the CPU itself. I'm well aware of my limitations on this board, and I don't want push those mosfets (even with the aftermarket heatsinks).

I'm assuming I should push up the speed on on the CPU/NB to around 2600-2800, with corresponding voltage increases along with stability testing, however, what temps do I need to watch? Will this effect CPU temps at all? I've never messed with these voltages before, however I do know that the "stock" setting is only 1.0V I think.

Also, I've run this board a 4.0ghz with 1.47 all year long, and she has been running smooth with no issues(For those worried about mosfets).
Tons of gaming, video encoding, and what not.
post #2 of 9
Thread Starter 
I should also stress that I'm not looking to push the CPU any more, just maximize overall PC performance. Everyone says that having a higher CPU/NB will work hand in hand with a higher CPU oc for best overall performance.
post #3 of 9
I was able to run my Phenom II 955 with a 2.8GHZnb at 1.4v. Is that the info you wanted?
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post #4 of 9
Thread Starter 
That helps, but I guess I'm just not sure if it is possible to burn out a motherboard by increasing those voltages, instead of blowing up mosfets.
post #5 of 9
It was with a 4+1 VRM phase Gigabyte 785G uATX board, probably similar to yours. Nothing lasts forever, and I rarely keep same components over 1-2 years anyway.
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post #6 of 9
What you can do is this.

Lower the the multi to X19.5 for 3.9ghz
Increase CPU/NB to 2600
Increase FSB to 210 which should get you 4.1Ghz
And should get you around 2750 CPU/NB

Lower your Vcore a little now, you should be able to drop it a bit.
And increase the CPU/NB upto around 1.37v


This "should" let you keep the temps in order. But allow you to re-allot your voltage to stablize the CPU.
post #7 of 9
Quote:
Originally Posted by matt1898 View Post

That helps, but I guess I'm just not sure if it is possible to burn out a motherboard by increasing those voltages, instead of blowing up mosfets.

Increasing the CPUNB voltage will add heat to the processor. The voltage is for the IMC, which is located on the die of the processor. It's minimal, but it's does have an affect.

Anything is possible, as far as burning something out, but you normally have to try hard before it gets to that point. Most gigabyte boards chipset sensor is for the VRMs, which if too hot can cause some problems As long as they aren't super hot, then you shouldn't have an issue.
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post #8 of 9
Thread Starter 
Thanks guys. I ran Prime 95, at 4.1 ghz,
It ran for 10 hours before I shut it off, at 1.47 vcore, and 2600mhz on the CPU/NB at 1.3. The cpu never got above 55C', and the Tmp1,Tmp2, never got above 50. I'm happy.
post #9 of 9
Very nice!
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