Hey all. I bought a new power supply from pc world on Friday, took it home, installed it and as soon as I fed power to it the thing exploded. I took the entire machine back to pc world to get looked at and the tech guy at the desk started to blame it on the machine being dusty. He then decided that it was because I had plugged the PSU in improperly to the motherboard. This is where you guys could offer me some help. The power supply in question was 400w and had a 20 pin main motherboard power lead with an extra 4 pin lead seperate from it in case the motherboard had a 24 pin power requirement. I had actually plugged the 4 pin cable into the processor power socket, which on my motherboard is right beside the main power socket and is also a 4 pin socket. According to the pc world tech guy this had overloaded the motherboard because there was too much power being fed into the processor socket. But on checking with a 3rd party computer expert he said that it couldn't have overloaded it because 12v should be coming out of all the leads. I then checked the manuals for both the power supply and motherboard and found that the cable I plugged in was giving 12v of power and the processor socket requires 12v of power. After speaking to a pc world manager I was told that all the tech guys in the store were unanimous in their verdict that the place I plugged it into would blow the power supply and the whole motherboard. Could you guys give me your oppinion on the situation? If there is any more information you need just ask.