AMD A8-4500M Underclocking

S3RiOUS

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Feb 26, 2011
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Hello there! :)
I have been thinkering with this for so long and i just don't know what the problem is...
I have ASUS K55DR laptop with
AMD A8-4500M
6GB DDR3
AMD HD7640G+HD7470m graphics card...

The problem that started happening (was fine before) is that this cpu runs at 2.30GHz and turbo to 2.80GHz when needed.So it trully runs this way but as soon as i enter a 3d game (wow,dota2 or bigger games) the cpu starts underclocking to 1.90GHz and sometimes to 1.70GHz...i press start to come back to windows he bumps to 2.30GHz.

It is not overheating and i tryed several drivers and all do the same...i remember having better performance when i bought it cuz then i remember he was working as it should..

I am running Windows 8.1 with latest updates.

Thanks in advance!
 

blader15sk8

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Feb 6, 2006
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What are your temps?

You say it is not overheating, but that might be exactly why. It sounds like the processor is thermal throttling to prevent overheating, which is what it should do. Try getting one of those laptop coolers that you put underneath your laptop, it should help.

You may also have to clean out the vents or even re-seat your heat sink with some new thermal paste.
 

S3RiOUS

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Feb 26, 2011
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Well I am using AMD Overdrive and i did all i could (software wise) to make it run at max!
The only think i could think of is if thermal paste is off or something but its not hot to the touch like it was a week ago when i cleaned it (just blowing into fan openings)...the temps in amd overdrive shows

Thermal Margin : 13 C
Idk what that means but its blue colored so i guess its fine?
 

Jaap Lubberts

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Jun 29, 2015
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I have the same laptop only running windows 7 x64. My laptop decides to turn off while playing games. When i opened up the laptop and removed the fan and copper tubing i saw something terrible. The termal compound was turned to rock, they applied too much and was full of airbubbles. I decided to buy Coollaboratory MetalPad for Notebook and replaced my thermal compound with it. The laptop runs games on full settings smoothly and never shuts down anymore.
 
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