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up the multiplier or lower voltage

post #1 of 4
Thread Starter 
right now i think i might be alittle overvolted. now i'm not sure whether i want to just keep uping the the multiplier or do i just want to find the perfect voltage for 4ghz. its 10 hours stable on prime right now.

do you guys think i should just up the multiplier or should i just try to find a lowest voltage i can get 4ghz stable. i'm at 4ghz 1.5v.
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post #2 of 4
First try to lower the vcore in bios by one step each time and test stability with p95. Once you have found the sweetspot, then increase the fsb by lil amounts ( your multi is high enough, higher might cause instability). When the system becomes unstable again, either roll back to a stable setting or keep on increasing vcore to gain higher oc (not recommended).
I would suggest you to keep cpu at 4ghz, lower voltage if possible, increase cpu-nb to 2700/2800mhz, increase cpu-nb voltage to somewhere near 1.35v, keep ht near 2000mhz.

When all of this is over, try to change that ram setting to 7-8-7-22-1T, only if possible. Check stability again with both p95 and HCI memtest.
Edited by leopold1985 - 2/12/11 at 9:40am
    
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post #3 of 4
Thread Starter 
i didnt think it would be safe to start on the fsb, beings i'm already sitting on 4ghz. should i lower the multiplier as i raise the fsb?
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post #4 of 4
Quote:
Originally Posted by toyz72 View Post
i didnt think it would be safe to start on the fsb, beings i'm already sitting on 4ghz. should i lower the multiplier as i raise the fsb?
Thats not a bad idea. But first try to find out if you can get a stable 4ghz with less voltage. If possible good, if not then stop here because more OC would mean more vcore and I am not that comfortable with vcore of more than 1.5v (specially for 24x7 use). While trying out these things, keep cool n quiet off.
If you manage to get a stable 4Ghz with lower voltage and want to push your system further, then you can start increasing the fsb ( I am not suggesting to lower the multi because your chip can handle 20 very well, as you already know ). A 4.1 GHz on phenom 2 for daily use is quite good actually.
Oh, and dont forget to tweak the cpu-nb and ram settings as I have mentioned earlier (if you havent done that already).
    
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