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First off, I am a TOTAL n00b at OCing. tell me how it is:

I have an AMD Athlon II x4 640. (Default is 3GHz)

I have OC'd it to 3.3GHz. Just wondering if this will kill the cpu really fast or not. I would like the CPU to last one year min.


CPU FSB Frequency-220MHz

CPU Ratio -x15

CPU-NB Ratio -x10

CPU-NB Frequency-2200 MHz

Also, using a video stress test on Lost Coast, I get about 30C/86F on the CPU. Is this OK?

Thank you in advance!

asked Nov 20 '10 at 18:44

James58321's gravatar image


If you can get an alarm that will let you know when the CPU is upwards of 100 degrees. Anything over 105 is very harmful. How far you can go with the OCing really depends on the temps. gl

answered Nov 20 '10 at 18:47

Angelwork's gravatar image


good idea. thx.

(Nov 20 '10 at 18:51) James58321 James58321's gravatar image

The max temp for this cpu is stated as 70oC so as long as you keep it below that you should be fine. 30oC also sounds fine, my phenom 2 x4 idles around 41oC and load about 50oC with the max temp rated at 62oC.

But lower is always better!

(Nov 20 '10 at 20:07) SignOff SignOff's gravatar image

If you're only getting 30 Celsius while doing a video stress test, then I would say that you could OC quite a lot further and still not have to worry. Make sure you have a very good cooler before you do anything risky. The stock coolers just won't cut it.

answered Nov 21 '10 at 07:57

Ben%20Grant's gravatar image

Ben Grant

but this is WITH the stock cooler, and this is fairly low, isn't it?

(Nov 21 '10 at 10:44) James58321 James58321's gravatar image

it really depends on how your cooling it, the factory fan probably wont cut it, you may need a better fan or liquid cooling if it gets to hot.

answered Nov 21 '10 at 10:26

trueb's gravatar image


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Asked: Nov 20 '10 at 18:44

Seen: 1,185 times

Last updated: Nov 21 '10 at 10:44