Please help! 6870 black screen!

llee8820

Member
Aug 9, 2010
25
0
0
Please help all computer gurus, I don't know what happened to my graphics card! I was merely browsing the internet when all of a sudden all my monitors go black and my GPU fan went to 100% speed. I tried rebooting but I get no signal to my monitors even though I hear the Windows loading sound in the background. I also tried reseating the video card but still no results. I have a PowerColor 6870 that was recently bought only a month ago. I took it out and put in my old 4850 and the displays came back. I'm thinking the root of my problem is my graphics card, but I just wanted to double check with the gurus out here. Temps for the PowerColor were ~36-40 idle, and ~65-70 load.

My other thought is that it could be my PSU. Here is my build.
-Mobo: Asus M5A87 am3+ (new <2 weeks old)
-CPU: AMD Phenom II x6 1055t (new <2 weeks old)
-Ram: G Skill Rip Jaw 8gb 1600 (new <2 weeks old)
-GPU: Powercolor 6870 (~3 weeks old)
-Hard Drives: 60 OCZ vertex, 250 Seagate Barracuda, and a 1Tb Seagate.
- PSU: OCZ StealthXStream OCZ600SXS 600W ATX12V / EPS12V (from old build, ~3 years old)

So my questions are:
1) Did my GPU take a dump on me? Should I go ahead and do a RMA?
2) Is it just my PSU is not strong enough? Although everything was working fine for 3 weeks with the new parts.

Any help is greatly appreciated.
 
Last edited:

TakeNoPrisoners

Platinum Member
Jun 3, 2011
2,599
1
81
The PSU is fine, I believe the 6870 uses similar power to the 4850.

It almost sounds like a wire is loose and the GPU isn't getting enough power.
 

Arkadrel

Diamond Member
Oct 19, 2010
3,681
2
0
If you have overclocked CPU/RAM/NB ect, reset all those to default speeds first.
Power down, clear cmos, see if you get signal again (this also liminates anything that could be the cause via ei. bios settings giveing you this issue).

See if it isnt some instability, due to some component not likeing the speed it was (being made to) running. That could be the cause of both, it crapping out on you the first time, and lateron not wanting to turn on.
 

GaiaHunter

Diamond Member
Jul 13, 2008
3,732
432
126
It seems like that GPU might have died.

When you turn on the PC with the 6870 does the PCB of it warm up?

Any chance to test that 6870 on another build/different PSU?
 

llee8820

Member
Aug 9, 2010
25
0
0
It seems like that GPU might have died.

When you turn on the PC with the 6870 does the PCB of it warm up?

Any chance to test that 6870 on another build/different PSU?

Actually it doesn't get as warm as my 4850 when I plug it in. I think the GPU is just dead. I think I'm going to just RMA it. Thanks for the help.