Don't know if this kind of problem goes in this topic, but I really don't know where else to post it. My old system was: CPU: AMD 2700XP MOBO: Abit NF7 eVGA nVidia 6800 128mb 1GB 333 DDR Ram 2 WD 80GB Hard Drives Audigy 2ZS Soundcard Leadtek Deluxe 2000 TV Tuner Ethernet PCI Modem PCI 350W Power Supply I swapped the mobo and cpu for a AMD64 3000 CPU and an Abit KV8 Pro mobo, left everything else as it is. I installed WinXP Pro SP2 retail version just fine, but when installing drivers windows crashed in a looping sequence.... I reinstalled winXP and tried installing drivers in different order and same thing happened, one thing I noticed was an often poping or cracking sound that came from the PC just like the one the monitor makes when you set the max resolution or the one my UPS battery makes when there's a power shortage... Windows also paused often for 3 to 5 seconds along with the poping without any work from the hard drive. Next thing I tried was plain WinXP Pro, I installed every driver just fine but the poping and pausing remained... it ended up crashing, first time it just restarted and asked for the winXP cd to repair, after reinstalling it crashed again but when restarted it shows a blue screen while loading windows and restarts again. As you can see I installed winXP 4 times, haven't tried abything else cause something must be wrong.... I don't have a clue what the problem could be! Please help, Thx in advance.