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How to decrease CPU Speed?

  • CPUs
  • Windows XP
Last response: in Windows XP
February 10, 2012 4:24:02 PM

Hi! I'm a retro gamer and i have a huge collection of old games. After many months i finally succeeded in finding patches and fixes for them to support new graphic cards and operating systems, problem is, that some are so fast that are unplayable, or skipping cutscenes/audio dialogues.

My CPU is an old single core 3GHz PIV processor.

Is there any program out there witch instead of stressing you're CPU, can temporarly set it to a fixed number of cycles? For example to change the speed from 3GHz to 1GHz, without permanent damage suffered by the CPU.

Also will those changes affect the CPU cooler?

Thanks in advance.


I apologize if i posted in the wrong section.

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February 10, 2012 7:36:57 PM

Underclocking your CPU should not cause any damage and should also reduce its heat output.

You can try underclocking the CPU through the BIOS settings, but most motherboards for the P4 CPUs did not have the selections needed to under or overclock.

After system power-on access your BIOS and see what settings are available in your BIOS. Reducing the Front Side Bus will underclock the CPU and RAM. If you have RAM divider selections, you may be able to increase the RAM speed to its stated speed.