Hi All, I have an PC having AMD Athelon XP 2100+(1733MHz), 512DDR SDRAM and MS 6382E VER:3 Motherboard. A few days ago, old processor (athelon xp 2000+ 1667MHz) stopped working so i bought the new one as above. After installing it was showing the speed of 1300MHz(1500+) as motherboard was set at 100Mhz FSB. After changing jumper setting to 133mhz its showing the right speed but doesn't allow to install XP professional. It hangs while copying files or gives an error message 'page fault in nonpaged area' during installation when askfor the option to set up windows in a drive. At 100mhz fsb, we can install xp succesfully and works fine but computer freezes if changed to 133fsb afterwards.