Question Did I receive a bad gpu?

Sep 14, 2023
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Hey all so I just added some new parts to my PC and I'm coming across a booting problem. I'll list my specs below, I'm at work so I apologize if I get something incorrect.

So I bought a new gpu, (sapphire nitro plus 7900 xtx), a new PSU (seasonic tx 1000 prime), and upgraded my ram (2x32 gb patriot steel viper). I set everything up, rewired what I needed to, but the PC wouldn't turn on. I jump started the PSU to confirm that worked, it did. Then I tested plugging in everything one at. Time into the PSU and the system booted fine up until I plugged in the GPU. Whenever I plug the GPU into the PSU it no longer powers on. The only thing that happens is when I plug the ac cable, or flip the power switch of the PSU to on, the motherboard has one light that flashes once but the power switch for the PC won't work.

I've been trying lots of different troubleshooting along the way and have built and troubleshooted many PCs before so don't hold back on me. I'm pretty sure at this point I just need to rma the GPU. I plan on doing that when I get off work later today. If anyone can think of some things for me to test or has questions please let me know. I'll be monitoring this thread while I'm at work and will try any suggestions when I get home.

Thanks in advance everybody.
 
I forgot to add my specs:

Cpu-10700k
Mobo-Aorus z490 elite
Ram-2x32 gb patriot steel viper
Psu-seasonic tx 1000 prime
Gpu-sapphire nitro plus 7900xtx
Varying different hdds and ssds
 
I need to know exactly what you have already done to troubleshoot.
I went through the whole no boot troubleshoot guide on the site up until the breadboarding part. I used a wire to jump start the PSU to confirm that works. I have also tried booting with all the new parts minus the GPU and using my old 1080 to test and it boots fine that way.
 
I went through the whole no boot troubleshoot guide on the site up until the breadboarding part. I used a wire to jump start the PSU to confirm that works. I have also tried booting with all the new parts minus the GPU and using my old 1080 to test and it boots fine that way.
If it boots fine with your 1080, this greatly narrows down your problem. It is very likely the 7900 xtx, or the way you have it connected/installed into your motheboard.

I assume you're using the same motherboard slot for the 1080 as you are for the new GPU, correct?
 
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So I bought a new PSU (seasonic tx 1000 prime)
You upgraded PSU.
Did you also change all the modular cables to those from new PSU?

Modular PSU cables usually are not compatible between different PSU models.
Using wrong modular PSU cables can kill/damage hardware connected.

Can you show a photo of your system with side panel removed?
(upload to imgur.com and post link)
 
If it boots fine with your 1080, this greatly narrows down your problem. It is very likely the 7900 xtx, or the way you have it connected/installed into your motheboard.

I assume you're using the same motherboard slot for th 1080 as you are for the new GPU, correct?
That's my line of thought too, yes I am using the same slot, to me it seems like a GPU problem
 
You upgraded PSU.
Did you also change all the modular cables to those from new PSU?

Modular PSU cables usually are not compatible between different PSU models.
Using wrong modular PSU cables can kill/damage hardware connected.

Can you show a photo of your system with side panel removed?
(upload to imgur.com and post link)
Yes I made sure to use the new cables that came with the new PSU. Sorry I'm at work and don't have any pictures saved so I can't take a picture but I can later today.
 
Your new gpu is a highly overclocked version that needs three 8 pin power connectors.
Connect them with a single cable for each.
Two 8 pin connections on a single cable is not good and may overload the cable.

Also, on the motherboard insure that you have connected both the 8 pin and the 4 pin eps cables.
They provide the necessary added power.
I currently have it wired so that each of the 8 pin connectors on the GPU have their own cable. I also have tested with just the 8 pin on the mobo as well as the 8 and the 4. I currently have it as both and in both cases I still had the same issue.
 
I currently have it wired so that each of the 8 pin connectors on the GPU have their own cable. I also have tested with just the 8 pin on the mobo as well as the 8 and the 4. I currently have it as both and in both cases I still had the same issue.
Since all of this works with the 1080, I would also conclude that the new gpu is at issue and should be replaced.
There is a dual bios switch. Have you tried the alternate?
 
Since all of this works with the 1080, I would also conclude that the new gpu is at issue and should be replaced.
There is a dual bios switch. Have you tried the alternate?
Alright good to hear I'm not the only one thinking this. I have not, that skipped my mind, I'll try doing that when I get home but if I get the same results I am just gonna rma the card.

Really appreciate all the help everybody, I just wanna play starfield haha
 
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