R9 390X oddities

[Lildirt]

Hi there everyone.

I picked up an R9 390X recently as an upgrade to my old HD 7950s in crossfire. As one of them started spitting and sputtering towards it's death, I decided to just upgrade entirely.

I'm struggling with rather odd issues at this point though. I popped it in one of my systems (i5-4670k, Gigabyte Z97MX-GAMING 5, 16GB DDR3-1333, OCZ ModXStream Pro 600W PSU). Black screen. I troubleshooted for a while and decided to shove it in another machine (FX-8350, 760GMA-P34 FX, 8GB DDR3-1333, CX430 (430W) PSU) and it worked like a charm! I was able to boot up and log in with no problem. Unfortunately, the FX-8350 machine is a Linux box, so that isn't going to help me.

What is going on here? I've validated that the 600W PSU has two 12V rails and it's 600W (versus the other one, the 430W, which it managed to boot to a desktop with), so I have my doubts the PSU has anything to do with the machine not posting. I have also tried to force as many Legacy and UEFI options as possible (trying my best to originally boot with legacy, then later trying with UEFI). It doesn't boot with the video card regardless of legacy or UEFI setting. I've tried other things before that, such as trying all PCIe ports

My BIOS is currently at version F6, which is noted on Gigabyte's website to be the latest official version.

Won't lie, I'm a little desperate at this point. I've been hacking away at this for some time now and I'd like to see the bloody thing work in a way that's beneficial to me (so, in that machine).

Thanks for your time.

[Atmos]

have you tried connecting your monitor to your motherboards display out? Could be the system defaulting to igpu for display instead of the dgpu. 

[Lildirt]

@Atmos Yes. I have disabled the on-board video and tried to boot with the card at least once. I moved it over to the onboard to check and it was indeed off. It previously had a different video card in it. It works with one of the functional 7950s but does not work with the R9 390X.

[Starelementpoke]

28 minutes ago, Lildirt said:

Hi there everyone.

I picked up an R9 390X recently as an upgrade to my old HD 7950s in crossfire. As one of them started spitting and sputtering towards it's death, I decided to just upgrade entirely.

I'm struggling with rather odd issues at this point though. I popped it in one of my systems (i5-4670k, Gigabyte Z97MX-GAMING 5, 16GB DDR3-1333, OCZ ModXStream Pro 600W PSU). Black screen. I troubleshooted for a while and decided to shove it in another machine (FX-8350, 760GMA-P34 FX, 8GB DDR3-1333, CX430 (430W) PSU) and it worked like a charm! I was able to boot up and log in with no problem. Unfortunately, the FX-8350 machine is a Linux box, so that isn't going to help me.

What is going on here? I've validated that the 600W PSU has two 12V rails and it's 600W (versus the other one, the 430W, which it managed to boot to a desktop with), so I have my doubts the PSU has anything to do with the machine not posting. I have also tried to force as many Legacy and UEFI options as possible (trying my best to originally boot with legacy, then later trying with UEFI). It doesn't boot with the video card regardless of legacy or UEFI setting. I've tried other things before that, such as trying all PCIe ports

My BIOS is currently at version F6, which is noted on Gigabyte's website to be the latest official version.

Won't lie, I'm a little desperate at this point. I've been hacking away at this for some time now and I'd like to see the bloody thing work in a way that's beneficial to me (so, in that machine).

Thanks for your time.

Could be that the OCZ is just too poor of quality, which wouldn't surprise me.

[Belgarathian]

Have you tried using DDU to remove the drivers and start from scratch? 

 

Test by booting into safe mode and seeing if you can replicate the black screen there. 

[Lildirt]

1 minute ago, Belgarathian said:

Have you tried using DDU to remove the drivers and start from scratch? 

 

Test by booting into safe mode and seeing if you can replicate the black screen there. 

The BIOS does not post at all. The "blackscreen" is the lack of output to the monitor period. No BIOS logo. No operating system logo. Nothing.

[Belgarathian]

1 minute ago, Lildirt said:

The BIOS does not post at all. The "blackscreen" is the lack of output to the monitor period. No BIOS logo. No operating system logo. Nothing.

Hmmm. Sounds like a PSU issue then if the card isn't powering up. 

[Lildirt]

19 minutes ago, Belgarathian said:

Hmmm. Sounds like a PSU issue then if the card isn't powering up. 

 

29 minutes ago, Starelementpoke said:

Could be that the OCZ is just too poor of quality, which wouldn't surprise me.

 



Well, I'm going to go dig through my bin of excess power supplies and see if I can't find one that can power just the video card. Maybe I won't fry anything. I'll try a different card first.


EDIT: Guess I'll be picking up a power supply sometime tomorrow then. Shame. Couldn't find anything that could actually lift the load.