I have a home built rig that is still having spontaneous reboot issues. I have replaced the Enlight Power supply with a an Antec True 480 psu, I have replaced upgraded (or changed) memory from Mushkin Green PC 3200 memory to OCZ Enhanced Latency PC 3200 memory. I have checked operating temps. The CPU run well within spec from AMD (highest temp 49celsius, 120 F under load) and case temp hovers around the 90F (32C). I have upgraded to the latest bios for my board and have also upgraded to the latest NVIDIA NFORCE2 drivers. I cannot recall exactly when the spontaneous reboot issue started (no particular upgrade or hardware install sticks out). Here is what I have hardware wise, I hope you can help. AMD ATHLON XP 3200+ ABIT AN7 Mobo 1 Lite On DVD RW+- 8x Drive (IDE) 1 SAMSUNG CD RW Drive (IDE) 1 Western Digital 160gb Caviar Hard Drive w/ 89mb cache (7200 RPM) 2 OCZ Enhanced Latency 512k DDR PC 3200 ram modules running in dual channel 1 ATI Radeon 9800 pro Video Card 1 Antec Tru 480w power supply 1 Teac 3.5 Floppy Drive 2 80 mm Case Fans (1 intake, 1 exhaust) 1 Thermaltake Heatsink/Fan Thank you for any further direction you can give The NOSPIN Group is now accepting donations to help defer the costs of providing PCBUILD and our website. Visit http://freepctech.com to donate using PAYPAL