my computer won't post with my HD 7950

clayton alexander

Honorable
May 8, 2013
1
0
10,510
Hey there, I got a new mobo recently (asus sabertooth 990fx r2) and when I try to turn on the system with my HD7950 (gigabyte WF3) the system won't turn on. It turns on for like 0.2 secs, the fans rotate 20 degrees, the cpu led on the mobo flashes, and then everything turns back off. I have a older HD7770 and the systems does turn on with that gpu. Pretty weird.
I already RMA'd the 7950, and after getting the card back I called the company and they told me nothing was ever wrong with the card. Unfortunately, the system still won't post.

My power supply is a an Antec Earthwatts 650 watts.
My cpu is a FX-8350.
My ram is corsair vengance 16GB.
My mobo: sabertooth 990fx r2.
Two boot drives: a samsung 830 series (64GB) and a samsung 840 (240 GB)
2 hdd's: (i forget what they are)