I'm having a bit of trouble upgrading my AMD Duron sys from a 700 to a 1.3. Here is my system specs http://support.buympc.com/apps/complist.asp?SerialNo=2553097-0001 Although changes Ive made since I bought the computer, 320 megs of ram instead of 128, SB Audigy, disabled onboard sound, Voodoo 32 meg video card, took out the 150 watt power supply replaced it with a 300 watt power supply. Exchanged the modem for a HCF Rockwell, anyway thats the bulk of it. I purchased a 1.3 Duron Chip last week for about 50 bucks brand new from the computer store, applied some new thermel paste, rebooted the system, when it gets into Windows XP it'll freeze up, so I have to power down to reboot it, it wants to scan disk both my harddrives, then once back in windows xp it freezes again. Ive tried reinstall Windows XP or installing Win2k, it will copy the files needed for the install, then it wants to reboot to finish the install, once it gets to the window part where it says Welcome to blah blah installation thats as far as it goes and freezes. My CPU doesnt over heat, so its not heat related but what else could be wrong? Computer store says the chip is compatible, but why wont it work? Windows XP see's it as a 1.3 chip, I can manage to bring up computer information before the system locks. So I know the chip works.... I'm overlooking something. Any suggestions?