I just bought a computer and it was working fine (without an OS) at the shop after the guy helped me to configure it.
When I reached home, the computer is unable to output anything through my graphics card, monitor displaying no video, but the fan and GPU's fan is spinning. No POST beeps either.
Tested by removing the ram, and I heard the beep sound, so I believe the motherboard is still alright.
Another thing I noticed is that at initial power up each time, the computer will power up for like 10-20 sec before it auto restarts. But after the initial restart, it does not seem to restart a second time, but still without video.
On the motherboard, there a 2 led, 1 green and 1 red. Not sure if this means anything.
Can anyone advise me on how to test? It's not convenient for me to go down to the shop until the weekend.