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New video card, no display even at BIOS.

Tags:
  • Graphics Cards
  • Graphics
  • Displays
Last response: in Graphics & Displays
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August 4, 2011 3:49:14 AM

So, I've been fighting with this for the past two days. I finally decided to upgrade the video card in my admittedly outdated computer. I decided to go from a nVidia 9600GT to a Radeon HD 6850. I uninstalled the old drivers, both manually and with a cleaner just in case, and went to putting in my new card. And... nothing. There's one post beep, slightly more delayed than usual, followed by a black screen. No display whatsoever. I can even hear the Windows boot-up sound after a little bit, but still no video. I put my old card back in and voila, no problems at all.

Anyway, these are my system specs. I know it's not the most impressive system in the world, but I'm working to rectify that with a new build by the end of the year:
OS: Windows 7 64-Bit
CPU: AMD Athlon 64 X2 6000+
RAM: 4GB DDR2
Mobo: Asus M3N78 Pro
PSU: Antec EarthWatts 650W

Now, here's what I've tried so far:
1) Tried my old video card, which worked just the same as always (of course, minus the drivers).
2) Tried reseating the new video card and the RAM.
3) Tried a BIOS update.
4) Tried a CMOS reset.
5) Tried plugging it up to another monitor using DVI. Still nothing.
6) Tried plugging it up to another monitor using HDMI. Still nothing.
7) Finally, I decided that the video card must be DOA, but for kicks, I decided to try it out in a friend's computer. Note that he had a 680W PSU and a motherboard even older than mine. I was expecting nothing, but what do you know. Worked perfectly fine without any hassle what so ever.

I'm at my wit's end here. I can't think of a single thing that I could be doing wrong. Anyone else?

More about : video card display bios

a b U Graphics card
August 4, 2011 4:36:55 AM

I will guess you plugged the 6 pin into the card. Can you try your friend psu in your case and see if it the gpu will work. Maybe your psu is dying. Good luck.
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August 4, 2011 5:15:26 AM

Could be a PSU or Mobo problem on your end.
650W psu should power that no problem...
Have your friend help you out with his parts to test and check.
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