Ok i’ve got a Compaq Model CQ5110F desktop with Vista 32bit install and 3gb memory. When the computer is on and running it works good. But sometime I’ve got problems getting it to start. I press the power button it turns blue like normal all the fans start like normal but after 15 seconds the CPU and Case Fans shut down Power Supply fan is still running and I have no video. Tried a new PS, video card memory even pulled out the modem. But get the same results it’ll start up no problems then the next 2 or 3 times it won’t then all of a sudden it will. I’ve tried unplugging the PS and holding in the Power button that seemed to work once or twice. I’ve unplugged the PS from the motherboard and that seemed to get it started once also. But another time I’ve tried doing the same things and get the above reaction the 2 fans shutdown and no video. Hopefully I’ve explained this well enough if not just let me know. I’ll try to answer back as best as I can. Thank you in advance for any help and advice you may have. I’m actually thinking it may be an issue with the motherboard, but would like to see if anyone has any ideas I have not tried yet.