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CPU Multiplier keeps dropping

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April 11, 2010 3:17:37 PM

Hello,

CPU: AMD Athlon 64 X2 6000+
OS: Windows 7 Pro 64

My computer started lagging really bad, so I went through every component and updated all the drivers I could think of. I finally ran CPU Z and looked around to see if anything was funny. That's when i noticed the Clock section kept changing. The multiplier keeps dropping from 15 to 5 and will stay there for quite awhile then go back to 15 for 5 minutes. I have looked online for an answer, but have yet to find anything. If anyone has any suggestions please help.
a c 131 à CPUs
April 11, 2010 3:28:02 PM

Sounds like your CPU is overheating. What are your load and idle temperatures? Clean all dust from your system, especially from the heatsink. If that doesn't help, reseat the heatsink with new thermal compound.
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April 11, 2010 3:33:36 PM

Using Core Temp 0.99.5, it is saying that Core #0 is at 21 C and 28 C and Core #1 is at 24 C and 27 C. I replaced the heatsink and fan a couple of months ago, but I will redo it to see if this corrects the problem.
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April 11, 2010 3:41:04 PM

Try loading it up with something like Prime95 and see if this keeps happening. Are you sure Cool n' Quiet isn't kicking in?
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Best solution

a c 83 à CPUs
April 11, 2010 6:35:28 PM

Sounds like cool n quiet, which is normal and shouldn't cause any lag. When cpu usage is low it drops down to 1.0Ghz on Athlon X2 processors, which is exactly what yours is doing.
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April 11, 2010 8:57:42 PM

Thanks for the input. I didn't look into what Cool n' Quiet actually does, but that is the reason for this. Again thanks for the information.
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April 11, 2010 8:58:03 PM

Best answer selected by phoward74.
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a c 131 à CPUs
April 12, 2010 2:47:24 PM

Although the multiplier should go down with cool n quiet, it switching back and forth due to load should not cause lagging or a performance drop. Unless by "lagging really bad" you were talking about the multiplier and not about the actual performance you were noticing.
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