Hi there,
not come across this problem before and it seems strange that the Mobo is emitting a single beep as if everything is OK. If I were faced with this problem I would probably strip everything out except CPU and one RAM module, just to see what happens as I would not be thinking it was a mobo fault but a problem with another component.
Sounds strange but have you also checked that your Mouse and Keyboard are still fine? Encountered a similar problem once before and it was down to the mouse of all things!
Well I decided to put the processor back in and try it again just with memmmory and power supply and nothing else plugged in. I hooked a lcd up to see what was going on. Well it posted super fast. So I added another memmory chip and it worked. So I kept on adding one thing at a time until I found whats causing a draw or the isuue. I ended up having everything plugged back in and it was running super good.
Well I guess I booted the computer with the Gigabyte self healing disk in the dvd drive. Because its running good all back together and doing some major gamming. Im glad it fixed itself because Gigabyte you never did send me a RMA # after I called you and I also signed up for a RMA # .i think God helped me because Gigabyte would never. Il tell you what I will not buy another GIGABYTE board again.Thats bulls*** you can't send someone a RMA .
iI just called Newegg and got my restocking fee waived and a UPS shipping tag sent to me by email instant.Im sending back the other power supply I bought to test this out. Newegg rocks less than 10 minutes I am taken care of.Gigabyte you can go to h***. Bad business you do.I should of had a RMA when I talked to you on the phone.