I am at the end of my rope here. I have purchased a Biostar M7VIG 400 (which can run at either 266 or 333 FSB) Socket A Motherboard and a Sempron 3300+ processor. The computer will turn on, complete the POST and boot from the CD-ROM drive (The hard drive is also new) As I am trying to format the hard drive in an attempt to install Windows XP, the on-board video will go to a blank screen or give a blue screen of death. After I try to restart the computer, the computer will not respond at all, no POST, no beeps, etc. I replaced the CPU, and it started working again, but same problem later on. I have done the following:
Changed Memory twice - Tried both 128MB PC2100 (266DDR) and 1 GB PC2700 (333DDR)
Changed Power Supply twice (Previously 400W, Currently 400W)
Changed Motherboards 3 times (all boards are Biostar M7VIG 400 boards as I can only exchange them)
Changed Processors 3 times (Sempron 3000+ and 2 Sempron 3300+)
Changed Hard Drives, first one was a 60GB IDE and the second is a 80GB IDE
I have always used a Heat sink, with working fan. No gel though. It clamps on tight and I can see no visible signs of damage to any of the processors. Right now, the computer will not start, but the fans in both the CPU and power supply come on as well as the motherboard LED's.
Could there be incompatibility between the MoBo and the CPU? I have already sunk about $270 in this black hole, and don't want to spend much more until I am sure that I have isolated the problem.
Can anyone help me?