This is what i found in google:
I just mannaged to fix this problem, I hope this will be useful to every one who experiences it. this problem is caused incase you have 2 RAM connected and on of them is disfunction, try to remove one of them to check which one is causing the problem, I'm not sure if this is the only thing that can cause this error, but it did the work for me.
found it here: http://www.annoyances.org/exec/forum/winxp/1158259753
let us know if it was the hardware....
Dell Precision WS470 Xenon 3.0GB 1GB PC3200 80GB SATA HDD
but...control 5 servers, one switch rack with 300 ports protected by cisco router, 300 PC's, 75 notebooks over a wLAN ;)