http://forum.eeeuser.com/viewtopic.php?pid=35780#p35780
Solved: 900Mhz under Linux (yes, the REAL deal!)
http://code.google.com/p/eeepc-linux/



my compiled kernel module:

eee.ko
http://www.happyupload.com/download.php?file=6e0f4fd268b330573edd96191ca0f7e2

cloop.ko
http://www.happyupload.com/download.php?file=d29470e9a8b5d13d843a4f645e68b567
cloop-2.05

squashfs.ko
http://www.happyupload.com/download.php?file=d895dc2a9478d1659d7027e59b18f44d
squashfs3.3

insmod /tmp/eee.ko
echo 85 24 0 > /proc/eee/fsb
sleep 3
echo 100 24 0 > /proc/eee/fsb

modprobe zlib_inflate
insmod /tmp/squashfs.ko
insmod /tmp/cloop.ko

ftp://sunsite.unc.edu/pub/linux/system/status/bogo-1.2.tar.gz
(0401 bios)
/proc/eee> cat pll | hexdump
0000000 c365 ffff 00f7 0100 070f 18e0 1b46 0024
(running firefox + Xorg)
eeepc-server:/> echo 85 24 0 > /proc/eee/fsb
eeepc-server:/> /bogomips
Calibrating delay loop.. ok - 1480.00 BogoMips
eeepc-server:/> echo 100 24 0 > /proc/eee/fsb
eeepc-server:/> /bogomips
Calibrating delay loop.. ok - 1760.00 BogoMips

(kill Xorg, only ttylinux)
eeepc-server:/> /bogomips
Calibrating delay loop.. ok - 1804.00 BogoMips
(1804.0/2 = 902.0)
cat /proc/eee/pll | hexdump
eeepc-server:/> cat /proc/eee/pll | hexdump
0000000 c365 ffff 00f7 0100 070f 18e0 1b64 0024