Dear Sylvia,
I will try to update to BIOS version 0145 and test again.
So I believe I am left with two options:
1. Test the Gigabyte HD 7850 GV-R785OC-2GD (rev 1.0) on other PCIE 3.0 capable motherboard. If It could boot it means that the PCIE slot on the Intel DQ87PG is faulty. If it couldn't boot then the card is faulty.
2. Test other HD 7xxx or any card with PCIE 3.0 capability on the Intel DQ87PG. If it could boot that means my Gigabyte HD 7850 is faulty. If it couldn't boot than the board is faulty.
Either way I will need to fork out around 100 bucks (RM300++) just to find capable PCIE 3.0 card or board to verify the problem. Is there any support center in Malaysia that I can visit and bring my motherboard and graphic to test?
Thanks