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Amd Athlon ii x4 640 is only 1.8 ghz?????

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  • World Of Warcraft
  • AMD
  • CPUs
Last response: in CPUs
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January 4, 2014 11:29:22 AM

My AMD Athlon ii x4 640 is only running at 1.8 ghz.
I have tried to put the power options in high performance,
And i WoW (cpu heavy) at ultra and still it wont go up to the intended 3 ghz
Then i tried overclocking and went for a easy 2.7 ghz (cpu is supposed to be 3).
and i ran wow again, smoothly for about 10 minutes, then Blue screen.....
I have no idea whats going on, why is it only running at 1.8 ghz???

More about : amd athlon 640 ghz

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January 4, 2014 11:38:28 AM

if you run cpu-z............ open an app or game in widows mode. does the frequency pick up?............. bet it will. cpu will under clock itself when not being used.
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Best solution

a b à CPUs
January 4, 2014 11:38:46 AM

- Reset you CMOS (BIOS to default settings....)
- Locate a copy of Prime95, download and install it. (this presents a Constant load, games do not...)
- Locate a copy of CPU-Z, download and install.
- Run both applications, CPU-Z will show you that you run a "Core Speed" of 3Ghz when Prime95 is running. When Prime95 is not running you'll drop to a lower voltage and frequency n multiplier....

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January 4, 2014 11:40:57 AM

tried the cpu-z frequency doesnt pick up. but will try the reset and prime 95. Thanks!
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a b À AMD
a c 79 à CPUs
January 4, 2014 11:44:57 AM

find that hard to believe, if it continues............ reset cmos and try again.
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January 4, 2014 11:51:40 AM

worked great! i have no idea what was but it is fixed for sure! Thanks alot
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a b à CPUs
January 4, 2014 11:52:48 AM

Boofen said:
worked great! i have no idea what was but it is fixed for sure! Thanks alot


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a b à CPUs
January 4, 2014 11:54:00 AM

YW...

CMOS reset (BIOS Defaults) fix it? (sometimes best way is to start from the beginning, Defaults, with that...)
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!