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Overclock AMD 955 Help!

post #1 of 5
Thread Starter 
Ok so I was wondering if I overclock my AMD 955 to 3.6GHz - 3.7GHz what should I set the CPU-NB and NB to. Also I need help with voltages.
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post #2 of 5
Thread Starter 
Can I get some help please
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post #3 of 5
First of all it depends on whether its a C2 or C3 revision because they vary greatly. Advise for a C3 will be almost worthless for a C2.

I've recently sold my C2 revision 955 and it did 3.6 @ 1.412v. The C2 is poor overclocker...I believe I was running NB 2800Mhz at 1.4v too...the voltage was on auto to be honest but 2800mhz was the sweetspot for my 1600mhz ram
Edited by ManOnFire - 10/25/11 at 1:41pm
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post #4 of 5
Thread Starter 
I have a C2
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post #5 of 5
Every chip is different. My C2 can run 3.6Ghz on 1.36v if I want it to. 3.7GHz means going to 1.42v. That's a 50 watt increase in power at load there btw between those two speeds. The C2 eats power like a top fueler eats nitro. I can barely hold the heat at 1.46v for 3.76GHz because fully loaded it goes up 230 watts at the wall over idle.

As for the CPU-NB, mine is weak. Anything over 2500MHz is unstable regardless of voltage; however it'll hum along at 2400MHz at 1.2v all day. Actually it's poor enough that it's unstable at stock speeds at the stock 1.1v and has been since it arrived on my doorstep.

I have run 3.6GHz / 1.36v on a lapped stock cooler before. The heat isn't too bad. It only used about 150w if that over idle under full load.
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