You bought the modules with no heatsinks. Watch your temperatures carefully. Once they get hot they can burn down like the fuse on a firecracker. When they reach the end, "KAPOW"!
Abit IS7 - 3.0C @ 3.6ghz - Mushkin PC4000 (2 X 512) - Sapphire 9800Pro - TT 420 watt Pure Power
Samsung 120gb ATA-100 - Maxtor 40gb ATA - 100
Sony DRU-510A - Yellowtail Merlot