I will try to explain everything in detail: I bought a new case for my computer (Cooler Master HAF 932). I have moved everything from my old case to the new one. After I had done that (verified that all the wires and cables were connected to their proper places), I attempted to turn on the computer. The fans, drives, etc. start to spin up but then turn off after 2 seconds. Nothing happens afterwards. Is it my power supply? I didn't switch out any hardware (except the fans) from my old case to the new one. Originally I had: Generic case with two 120mm fans Intel stock fan Corsair TX650W power supply 4 sticks of corsair XMS2 DDR2 800MHz ram totalling 8gb Two dvd burners A floppy drive ATI Radeon 4870 x2 BFG aegia physx card Hitachi 1 tb hard drive (don't remember the exact model) Intel Core 2 Quad Q9650 One Vantec Thermoflow Fan One standard Thermaltake fan (TT-12025A) Motherboard - EVGA nForce 750i SLI FTW Now I have: A Cooler Master HAF 932 Corsair TX650W power supply\ CPU Cooler - Cooler Master Hyper N520 4 sticks of corsair XMS2 DDR2 800MHz ram totalling 8gb Two dvd burners A floppy drive ATI Radeon 4870 x2 BFG aegia physx card Hitachi 1 tb hard drive (don't remember the exact model) Intel Core 2 Quad Q9650 Motherboard - EVGA nForce 750i SLI FTW The three fans that come with the case (two 230mm fans and one 140mm) --------------------------- As you can see the specs are almost exactly the same. Faulty power button? I have pushed the power button that is directly on the motherboard but to no avail. I have disconnected all the case/system/chassis fans except the processor fan but it still doesn't work. I have disconnected the processor fan ONCE to see what would happen (computer turns on for a max of two seconds then turns off, processor shouldn't burn out that fast). I have disconnected all the optical drives, the floppy, the hard drive, the physx card (one at a time, doing multiple tests) but the problem still exists. Now I am thinking that it could be the power supply, even though it worked fine before or the cmos battery (the motherboard is about a year old...). If it is a processor problem, the computer should still turn on but have a blank screen with a flashing cursor on it if it was totally dead. Any suggestions on what could be wrong? Thanks in advance.