Before I get to the heart of the matter, I do not subscribe to coincidence or chance that my power supply units keep failing in the same manor. I have had 2 different supplies, both being different wattage and manufacturer, and both have failed. Here they are... 1. Eagle Voltage X 600w (lasted 1 year and 2 months) 2. Diablotek 400w (lasted 2 weeks)(was in a previous system for 6 months) Now, they are both completely different supplies and wattage as you can see. So why is it, that after opening them up, it is the same exact component that has failed on both? When i say exact, I mean EXACT. No other component or damage is visible in either unit, and there is virtually no dust. By now the gears are turning, so allow me to also post up the system specs these units are powering... Mobo: Asus MA488 EVO (ATX 24 pin / AM3) CPU: AMD Phenom II X2 555 Black Edition OC'd to 3.7gh 3rd core unlocked RAM: Corsair (something) 2 x 2gig sticks ddr3 GPU: Galaxy 9800GT 1gig ddr2 HDD 1: Hitachi Deskstar 1tb SATA HDD 2: Maxtor 120g IDE DVD/CD: LG dvd+RW SATA Wireless: Belkin G Case: Xion II with 3 case fans, clear side panel Now under PC Wizard, the amount of wattage being pulled by my system is 167 watts at idle. It peaks to about 280 when using it for gaming, and somewhere in the middle during normal app use. Now the component that keeps failing is a circular black piece that is located to the side of the fuse. It is in the same position of both supplies and same shape and size, so I can only summarize that it is the exact same component. Does anyone know what this piece regulates or does, and why it would fail on 2 different power supplies. Oh btw, the PC sits under a desk, and there is 7.5 inches between the back of the PC and the nearest wall. Side with the clear case piece is facing a completely open space. Plenty of ventilation for the system and it's parts. GO!!!!