Last updated: 8th March 2024
A simple DOS utility to adjust the FSB on an ASUS eeePC 701.
Do NOT run this on any other machine, this utility is written and tested ONLY ON THE 701, and targets the PLL chip specific to this chipset.
Usage: ewsfsb nnn
where nnn is the target CPU speed in MHz [120-930]
nnn = [120,150,180,210,240,270,300,330,360,390,420,450,480,510] [540,570,600,630,660,690,720,750,780,810,840,870,900,930] With stock VCore, stability is between 270-720MHz.
Future versions may allow step delay time adjustment.
As usual, any under- or over-clocking utility comes with a full disclaimer: use at your own risk! This adjustment is made by making changes to the PLL clock chip registers, and may cause system instability. Increasing the clock speed above the stock ASUS underclock of 630MHz of the Celeron 900MHz CPU will increase the heat generated from the increased switching speed.
The adjustment is slow and steps through FSB values slowly, as jumping directly to a different value causes instability, and can only be reduced by increasing the vCore voltage temporarily, which I prefer not to do.
Feel free to get in touch with me at earthwormsoft@hyperreal.com.au, but I'm very busy with my new family, and my crazy job, so be patient if you are expecting a response!
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