My entire pc turns on except the graphics card, can someone help?

[nottylerlt]

I am building a new system with some Christmas upgrades, and I have ran into quite a weird issue my entire PC turns on, the fans, the motherboard, the cpu radiatior/pump etc. except my graphics card, but the weird thing is the fans spin, but the green led light does not turn on and my monitors do not have a signal from my graphics card (black screen when PC is turned on), here are a few trouble shooting things that I have already debunked

1. It is not my power supply because every other thing in my case turns on except the gpu (its a 850w 80+ Gold, and i have a 2080ti)

2. It may not be my PCIE cables going into my GPU because I tried 4 different PCIE cables with no luck

3. my graphics card is not dead, because hours before I installed the new component, I was playing on my old build with my gpu thriving

4.  It could be my motherboard, but my mother board has a fan and that spins up when the computer is started and the mother boards power is the thing spinning the gpu fans, also I tried both PCIE slots and they both had no effect, still not working

5.  I cleaned my ram, and put it in different slots so I don’t believe that’s the problem

NOTE: I cannot do anything in the bios as my monitor’s don’t get a signal from my GPU because it is broken

 

My best guess is that there is something wrong with the PCIE cable or the socket that is on my GPU, as I said before when both PCIE plugs are not inserted in the GPU the on board fans spin, and all of my PCIE plugs (4) had no good or bad effect on it.

 

NOTE 2: I have a 3070 in another build and I tried it in my build with the problem and it wouldn’t turn on too (black screen)

 

PC SPECS:

2080ti founders edition

gigabyte x570 aorus elite MOBO

16gb (2x 8gb) ddr4 ram 

Ryzen 7 2700x

GIGABYTE p850gm power supply (850W 80+ gold) 

cpu is cooled By single fan corsair radiator and pump 

6 fans including the cpu cooler fan

2 monitors, one is DVI, the other is HDMI (no response from both)

[Dylanc431]

check your power to the graphics card, maybe try a different PSU if possible? 

I had some strangeness with my RX6800 when I first installed it where I could only get a picture if I plugged 1 monitor in, maybe try running the system with just a single monitor? 


if all else fails it might be time to RMA the motherboard or graphics card (check that in another system first)

 

[Jumballi]

swap the power supply, just because everything else turns on doesn't mean it can't be faulty in the pcie power delivery

[514_AppleGuy]

If you say that you tried with another known-good graphics card and had the same problem, then clearly the GPU isn't the problem. Remember that just because something looks to be "powered on", that component could still be dead.  

 

The first thing I would try is boot the system with the minimum configuration necessary for POST, with only CPU, a single DIMM, and ideally using the logic board's integrated graphics, if equipped. You should be able to narrow it down relatively easily from there. 

 

[514_AppleGuy]

4 minutes ago, Jumballi said:

swap the power supply, just because everything else turns on doesn't mean it can't be faulty in the pcie power delivery

Good point, I've definitely encountered this before. 

 

I also wanted to apologize. I knew that OP's logic board had onboard HDMI but that the Ryzen 2700X doesn't have an iGPU, rendering my previous proposition moot. 

[nottylerlt]

On 12/25/2020 at 7:46 PM, Dylanc431 said:

check your power to the graphics card, maybe try a different PSU if possible? 

I had some strangeness with my RX6800 when I first installed it where I could only get a picture if I plugged 1 monitor in, maybe try running the system with just a single monitor? 


if all else fails it might be time to RMA the motherboard or graphics card (check that in another system first)

 

Hey just an update, I RMA my motherboard got a totally different motherboard (the "broken one was x570, the new one is b550) and I was encountering the same issue so I did a bath in 91% isopropyl alcohol and it seemed to fix the issue, thank you!