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AMD Phenom II X4 3.3-3.5ghz OC safe?

Last response: in CPUs
July 22, 2012 7:51:39 PM

Hey all,

I've got an AMD Phenom II X2 unlocked to X4 and I'm using AMD's Overdrive tool to overclock the cpu from 3.3-3.5ghz. All I did was move the multiplier a 1.0x step up and changed the voltage from 1.420 to 1.435. I'm using a stock heatsink, so is this OC safe? I know its only a small incease but I wanted to make sure it would be fine on the stock heatsink.

Also, the overdrive tool shows my CPU temp at a constant 12 degrees celcius even during the stability test and when running games. Is this normal? It seems way too low.


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July 22, 2012 7:54:58 PM

You shouldn't need to bump the voltage for a single 200MHz increase, and those voltage numbers seem high, my 955 is only at 1.35V.

Also, a temperature of 12 C is wrong, your CPU must be above ambient(room) temperature unless you have an exotic cooling solution in place, download HWMonitor and use that to check the temperatures, if that reads the same i would check in BIOS to confirm that your CPU can read it's own temperature correctly, idle temps should be in the 30's
July 22, 2012 8:00:14 PM

Thanks for the quick response! I'll get on those right away. :bounce: 
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July 22, 2012 8:14:10 PM

Unlocked CPU's will not show correct core temps you have to use the CPU temp, I guess from the reading of 12 you are reading a core temp.
July 22, 2012 9:00:18 PM

ya i have my phenom overclocked to 4.2 GHZ and its showing 1.31 volts in AMD overdrive
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July 22, 2012 9:32:36 PM

The overclock is pretty low so it's safe to lower the voltage to 1.35 or so.If you want to increase the voltage beyound 1.45V you should consider a CPU Cooler.
a c 109 à CPUs
July 22, 2012 10:40:41 PM

When I had first gotten my Phenom II X4 955, I overclocked from 3.2Ghz to 3.4Ghz with the stock cooler and stock voltages :)  I think you shouldn't really have any problems for your particular CPU as well.