OK GUYS I GOT NEW INFO.
I got a POST Diagnostic card. When booting it will return postcode FF.
I Also got a working internal speaker. It returns LONG continous beep. On gigabyte's manual, that means graphic card is loose please reseat. After taking it out and giving it to friends for testing. They got the same symptoms but they could at least boot somewhat successfully.
It was booting windows properly but you cant see anything.
Failed to boot and failed to draw anything too.
SO at this point i thought it was totally the GPU.
But after i borrowed my brother's working 8600gt. It gave the exact same symptoms. Fans spin up but no boot at all. with Postcode FF.
Right now i am 95% certain about GPU and it has to be the CPU or MB that is faulty. I had other ram to switch out so im certain. The idea of two parts broken is giving me a headache -.-"
so i need to test MB or CPU.
btw I dont think booting without cpu would work because you need a processor in order to pass POST. so if that person would clarify the instructions.
Edited by david92ng, 07 March 2010 - 07:14 PM.