I have an Abit VP6 dual P3 mobo... put in the 2 cpu's and 3 512mb sticks. Worked great for 5 days, I rebooted and it wouldn't boot back up.

Went round and round with abit for about an hour of trying diffrent cpu's and in diffrent slots. I RMA'd the board plus $20, 3 days later I had a brand new board. Still working fine, that was about 3 years ago.