My Xp 1800

LOL extreemly common problem.

Read your motherboard manual, namely the part that talks about the bus or FSB speed.
All boards are set to a default FSB of 100(200).
You need to change it to 133(266).
Usually in the bios.

Simple.

<b><font color=purple>[Rik_]</font color=purple> I wonder how many people have made their own phasechange system?
<font color=blue>[LHGPooBaa]</font color=blue> I get phasechange whenever i eat a hot chillie   </b>

yea i checked my bios first theres no option but then i checked my manual and yes theres stuff on it, i have to change a jumper to get it to run 133mhz bus cpus.

*nods*
yep. thats right.

<b><font color=purple>[Rik_]</font color=purple> I wonder how many people have made their own phasechange system?
<font color=blue>[LHGPooBaa]</font color=blue> I get phasechange whenever i eat a hot chillie   </b>