Hi, I have bought new motherboard and processor last week and i have formatted my computer comletely and installed winxp pro with all its updates. The computer restarts itself randomaly while i click or play anything for example: I click on a web page in IE, crash. I click on a video in youtube (or anything else im sure it doesn't matter) and the mili second i do it crashes. I checked what I should do to see what the problem is and the first thing i did was going to system failure and uncheck automatic restart so ill get a blue window that shows the code of the problem. but it didn't its just keeps restarting itself without anything to show me. My computer speccs are: PSU: hiper hpu-4m530-pu 530w Graphic Card: Radeon HD4870 Motherboard: Intel BLKDP55WB Whitesburg Processor: Intel Core i5-750 Box Memory: G.Skill DDR3 2048GB 1333Mhz CL 9-9-9-24 NT Hard disk: Two of Western Digital 250gb I'm not sure if the problem is my specc but tell me if im wrong. Thanks anyways.