I am having the exact same problem noted in
http://forum.giga-byte.co.uk/index.php?PHPSESSID=l8dhkl8bsa128k8sqg8ekua2c5&topic=6264.15Though it warned me against replying to an old topic, so I am opening a new one. I bought the components a long time back, so I am almost certain it is out of warranty. I have a 500W power supply and it will startup properly if I short the pins that tell it to do so. The systems starts for a couple seconds and stops long before any beeps happen and no POST is shown. I am running with 2 memory sticks (Corsair) and a dedicated XFX graphics card. I currently have the battery pulled to see if it can reset.
I will enter all the information if that has value, but I wanted to see if I have any point in doing so at this point. Or should I just trash it and try with something else since it is long past normal warranty periods? The system has not been used. It just got set aside almost built until a week or so ago.
The odd thing is that it did startup to the BIOS screen once. I stopped it, packed everything in the case and then it was back to this weird behavior.
Can I do anything or did I wait too long?
EDIT: I only have the power supply (Silverstone SST-ST50f-p) connected to the video card and both motherboard connections to try and get to the BIOS menus. I should probably try the onboard video to remove one more thing. I have not hooked anything in other than the case (Silverstone HTPC GDO6B) to simplify what is trying to start up. It should fail with the lack of a boot drive, but it doesn't get that far. Could I boot without memory at all?