First of all, forgive my English. Im not a natural speaker but still able to understand a bit of here and there. So thats out of the way, a year or so ago ive built this one computer. All of the parts were bought once ive done researched each of it (CPU, VGA, HDD, RAM and so on) in the internet. Once bought, assembled the thing, i kind of surprised when it comes alive being it was the first time ive done this kind of thing. Its smooth sailing and never have any huge problem.. that is until yesterday. I normally used my pc mainly for games, internet, dvd burning.. you know, the usual thing. But yesterday, I didnt do any of that except listening podcast using JetAudio while malwarebyte and avg scanning my hard drives. In the middle of this, the computer shut itself off. I thought that was weird. Trying to shut it on again but to no avail. It just dead. No fans, nothing. Panicked, Ive opened the case and tried to troubleshoot the problem. Pushing the OnOff switch, the fan does spin but its just like half second.No light comes from the fan from the front (the one near hard disk) either. Im started to scratching my head. Cant believe just what happened. The motherboard LED is on though. Seems normal (or is it?). This board (MSI P7n) doesnt have beeping feature which complicate things. Ive tried everything, replacing ram, one by one, slot by slot, still nothing. I dont think its a graphic card problem since it doesnt said "no signal" in the monitor. Hard disk? hardly. DVD drive? Sound Card? maybe not. CPU or PSU? Probably. Disconnect the 6 pin(?) that powers the cpu, shut it on, it worked (Any fans that connected to psu molex). Shut it off, turn it on again, its dead again. Weird. Disconnect everything, taking the psu out, shorting the green and black wire, the fan on the psu is spinning but the LED from the back (one that indicates power) is sometimes on but mostly not. My god, what the hell is going on? I am not a tech savvy by any means. I just dont understand all of this. I dont want to lug this thing to a shop and ripped off by technician there (to be honest these guys are bunch of thieves and so businessminded - not so trustworthy according to my paranoid brain). Before im overcharged for something not even broken, i want to be clear. So this is what i want to ask you guys here: Which part of the component here is dead? CPU? PSU? or the whole thing..? LOL. To be clear, hardware is the following-- CPU - Intel Q6600 RAM - OCZ 4GB (2x2GB) MB - MSI P7n Zilent VGA - xfx 8800GT Audio - SB X-Fi XtremeGamer HDD - Seagate 7200.11 SD15 (im aware this problematic brand, but i used it more than a year...so ) DVD - 1.ASUS DVDRW 2.Aopen DVD Fans x3(coolermaster) x1(unknown brand but has LED. I dont like it ) CASE - CM690 PSU - Coolermaster m520 (modular) Please, man. HELP!!! This is driving me INSANE!