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AMD Phenom II x4 955 OC?

post #1 of 11
Thread Starter 
Just tried going past 4Ghz today. Well, I hit the multiplier up to 4400mhz on 1.45V and got BSOD after less than 10 seconds. I dont feel like restarting my comp and doing repairs every 10 seconds, so can anyone give a proposal as what to do? Raise FSB? hit up the voltage more?

As of the moment, I have voltage on 1.45V and 4000mhz x20 multiplier. Nothing changed to FSB, RAM, Etc.

My current temps on 4Ghz is 56C max, unless the GPU is doing work as well sense the GPU and processor are pretty close, it goes up to 58C.

I want to test my processor's limits is all. After I test it, im going back to 4Ghz.
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post #2 of 11
voltage needs to go higher. I would say push it up to 1.5 and see if it will stabilize, you can go to a max of 1.55

also your temps are at limit right now, so you are pretty much not going to be able to get much more out of it.
post #3 of 11
Quote:
Originally Posted by brobanmanx2 View Post
Just tried going past 4Ghz today. Well, I hit the multiplier up to 4400mhz on 1.45V and got BSOD after less than 10 seconds. I dont feel like restarting my comp and doing repairs every 10 seconds, so can anyone give a proposal as what to do? Raise FSB? hit up the voltage more?

As of the moment, I have voltage on 1.45V and 4000mhz x20 multiplier. Nothing changed to FSB, RAM, Etc.

My current temps on 4Ghz is 56C max, unless the GPU is doing work as well sense the GPU and processor are pretty close, it goes up to 58C.

I want to test my processor's limits is all. After I test it, im going back to 4Ghz.
What stepping do you have? Is that 4ghz stable? (3 hours prime blend)

past 4.0 you will definately need to be hitting 1.5v+ if you want stable. What about your NB? try clocking to at least 2.6ghz, sometimes gives stability. you will need 1.35ishv for NB though, make sure HTLINK is 1800-2200, no more no less.
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post #4 of 11
4.4ghz can be a stretch for most phenom iis. That your board is an igp board isnt helping either.
Also I wouldn't push the voltage - hek I wouldnt push the clocks - if hose vrms went uncooled
post #5 of 11
Thread Starter 
I have C3 stepping.
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post #6 of 11
Hit up the voltage. For suicide runs it's fine to go a bit past 1.55v, but you want to stay lower than that for a 24/7 overclock. Also mess around with CPU/NB and HT Link.
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post #7 of 11
I'm thinking you are at the very edge of the limit on air.....wich is actually very good !, .....i hit 4.2 just stable enuff to validate cpuz , 4.1 surf the web , 4.0ghz rock steady battlefield 2 bad company medal of honor no probs at all and the 1.45v is the safe limit for 24/7. Good Luck !
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post #8 of 11
Here is my 955 overclock. I hope it helps.

FSB: 205
Multiplier: 20
Speed: 4.1GHz
Voltage: 1.440V

Temps never go above 54c in prime 95 and hover in the mid 40s when gaming.
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post #9 of 11
Quote:
Originally Posted by brobanmanx2 View Post
I have C3 stepping.
C3 is good, did you try clocking the NB at all , if so howd it go?

Also what is your RAM set up? AMD likes tighter timings over latency. I'm assuming you have DDR3, if so run it at something like 8 8 8 24 at 1333 (this gives your room to clock up the FSB.) youll probably need 1.7-1.85 volts on ram.


for your higher clock, i think best bet would to litterally increae FSB by 1 or 2 at most, test for stability, and try again. remember watch all clocks, NB will proably get unstable around 2.8 - 3.0 ghz so keep it under. HT link below 2.2ghz ALWAYS. RAM below 1600 always too.

good luck let me know how it goes
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post #10 of 11
Quote:
Originally Posted by bringonblink View Post
C3 is good, did you try clocking the NB at all , if so howd it go?

I'm assuming you have DDR3, if so run it at something like 8 8 8 24 at 1333 (this gives your room to clock up the FSB.) youll probably need 1.7-1.85 volts on ram.
That's way too much voltage for 1333 and the timings you suggested. 1.65V tops should be enough if any.
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