Question about Dell Precision 650 PC Desktop

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CPU speed - and turn off


I have a Dell precision 650 with 2 CPU (XEON 3.2 GHz).
When I activate the 2nd CPU, the fans are very noisy.

Is it possible to turn the 2nd CPU when needed - without rebooting the system ?

Is it possible to modify the CPU speed on a DELL precision 650 ?

Thanks a lot in advance for your help.

Best regards.


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  • Randall  Trahan
    Randall Trahan May 11, 2010

    Yes you can modify the speed of the CPU by going into BIOS. There is a section specifically for CPU and it has a speed already indicated. However, if you slow it down and the fan is still making a loud noise then it would be a better alternative to change the fans on the CPU to one that is quieter. This can be done rather easily at your local computer store.



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Need more information. What operating system are you running. You should be able to set the CPU throttling in the O/S or BIOS.

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Noisy piece of "Dell" lol

That's a confusing description of the events charles.

Have you identified the cause of the original problem - the dead caps? Is Over Voltage a possibility - have you verified the stability of the PSU?

Apologies if I've misunderstood.

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