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Overclocking a X4 640 Propus - Page 2

post #11 of 31
I agree. Your CPU's MAXIMUM temperature according to AMD specifications is 62*C. So you should NEVER pass that. When overclocking, you don't ever want to pass 55*C.

You need to reseat your cooler, or get a better one asap.
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post #12 of 31
Thread Starter 
Quote:
Originally Posted by nbmjhk6 View Post
BACK OFF NOW!!!! The max temp I would feel safe with would be under 55c
Noted.
post #13 of 31
The best I was able to do with the 640 was 3.3 ghz stable and good temps. I did not have the greatest board for over clocking but that was what I was able to get. From I have read 3.5 out of that chip is really good.
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post #14 of 31
You're failing prime most likely because you're CPU is getting too hot. Roll it back until you get some better cooling.

However, if you want to get some performance in the mean time, mess with your RAM and CPU-NB frequency. (Note: CPU-NB is not the CPU and the NB separately. Its the setting you have at 2500 MHz.)
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post #15 of 31
Thread Starter 
What's everyone use to check temps? I've been using CPUID hardware monitor.


Double post...I hate this keyboard
post #16 of 31
Quote:
Originally Posted by APOLLOSTEES View Post
No it's my sig rig.

What's everyone use to check temps? I've been using CPUID hardware monitor.
I use realtemp and that is as accurate as my bios.
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post #17 of 31
Thread Starter 
Quote:
Originally Posted by leichtwork View Post
The best I was able to do with the 640 was 3.3 ghz stable and good temps. I did not have the greatest board for over clocking but that was what I was able to get. From I have read 3.5 out of that chip is really good.
Did you mess with your vcore?
post #18 of 31
Thread Starter 
OK

FSB=250
MULTI=13.5
OC=3.375

NB X10=2500

LOAD TEMPS=42-43C


Better I guess I was expecting a little too much out of a hunder dollar
CPU
post #19 of 31
You can easily get it higher. You just need to keep those temperatures under control.

You will see a larger increase in "snappiness" by getting your CPU-NB clocked as high as possible though. And CPU-NB voltage adds very little heat. Obviously, this will also bring your RAM and CPU speeds up some too, and HT Link.
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post #20 of 31
Quote:
Originally Posted by APOLLOSTEES View Post
What's everyone use to check temps? I've been using CPUID hardware monitor.
I've been using Coretemp for the longest time. Realtemp is good too.
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