AthlonXP Underclocking for a Low-Power Fix
Software For Multiplier Adjustment
As the AMD tool PSTCheck is not available, we have to look elsewhere. An ideal choice is CrystalCPUID, a freeware tool that allows you to set multipliers.
With this tool, you set the smallest and largest multiplier. You also need to enter details such as which CPU load (or "threshold") triggers the next higher/lower multiplier. If only one clock speed is required, the same multiplier is used for both the largest and the smallest value.
The freeware tool CrystalCPUID V3.5 to change the multiplier under Windows
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