[SOLVED] My new Zotac 3090 Ti (RMA replaced) is still not working ?

[Alucard4]

I bought Zotac 3090 ti amp extreme halo. First, it didn't work most likely due to low voltage from my previous 650 W corsair PSU, so I upgraded to 1200 W Corsair PSU.

Still didn't work. So I shipped it back from my country to ZOTAC USA and they replaced it for me.

Then, the replacement GC is also not working .

I tried it on multiple PCs, with teamviewer I can see it in device manager as (unrecognized driver) so I deleted the driver in hope that it fixes itself. Reset windows 11. Still not working.

I tried different DPs and HDMI, BIOS logo doesn't even show.

Please advise.

Specs:
ASROCK X570 PHANTOM GAMING 4
Ryzen 3800X
G.skill 16gb DDR4 Ram x2 sticks
Corsair 1200XHX fully modular
Zotac 3090ti Amp Holo
Windows 11
Bios version: X570 PHANTOM GAMING 4 P4.30


7 June 2022 1230 pm local time:

Ok, I contacted them and they said even the older one was working in their testing but they replaced it anyways due to RGB LED issue. They say the replacement was tested and should be working.



So I dug-out my old Asus Z97-A, Intel 4690K, Kingston 8gb ddr3 ram with the Corsair HX 1200 PSU.



This mobo still works flawlessly.



I tried the 3090ti, didn't work yet, but still I didn't try all different PCIe cables.



Note: it seems the HX 1200 Came with 2 PCIe cables only, I was always using a different brand PCIe cable to be the third.

In summary what I tried:
Updating Bios ✓
Different CPU ✓
Different Motherboards ✓
DDR 4 & DDR 3 RAMS ✓
Original PSU Corsair Hx cables ✓
Resetting and updating windows ✓
Different PCIe slots ✓
Windows 10 & 11 ✓
Resetting BIOS by CMOS battery and jumper ✓
Installing Nvidia driver (didn't recognize an Nvidia graphics card and won't install therefore) ✓

Not tried yet:
Using a different PSU ×
Using another triple 8-pin adapter for 3090ti ×
Another RMA or refund ×

 

[Phaaze88]

So they sent you back the old card instead of a completely different one?

 

[Alucard4]

So they sent you back the old card instead of a completely different one?

They sent me a new one, evidenced by a different serial number.

Still, the new one isn't working.

 

[Phaaze88]

Recap:
First card, LEDs came on, but no POST. Corsair RM650 psu, deemed a good unit by many.
Second card, same response. Changed to Corsair HX1200, great unit. Tried gpu in different PCs, no change.
No riser devices were involved.
End recap


Do you have any older gpus on hand to try?
Back-tracking to the first Holo: When you plugged the 3 PCIe cables in to the 16pin adapter that was included with the gpu, did you plug the ends that were the split 6+2, or did you connect the fixed 8pin to the adapter?

 

[cryoburner]

Could be a defective triple 8 pin gpu cable ? Because that is the only thing that wasn't replaced with the RMA, and Zotac told me the replacement is tested and should be working fine.

What sort of cable is this, exactly? Is this something that came with the new power supply, or an aftermarket cable, or something left over from the old PSU? Are you sure that it's compatible with that specific power supply? Modular power supply connectors will at times be wired differently on the PSU's end, sometimes even across different models from the same brand, so you want to make sure you are using cables specifically designed for that PSU. Otherwise, even if they physically fit into the plugs on the PSU, there's the possibility that they might be connecting to different lines than they should be, potentially damaging hardware. If this cable was not included with the PSU, did you try using the PSU's original cables first?

And how many 6+2 pin cables came with your HX 1200? If you have four cables, for example, you might try swapping the extra cable one at a time with each of the other three, in case one of those might have some problem. Though if a potential cable problem were to have caused damage due to incorrect wiring, that might not help at this point. You might also try plugging those cables into other PCIe connectors on the PSU's end, in case something were wrong with one of those, since I believe that PSU includes more connectors than included cables.

For the replacement, I went to a nearby PC shop and the guy there said he used it on 2 different PC and still didn't work.

Are you sure the PC shop tested the card in a system with a PSU capable of handling it? I would think they would, but you never know.

Edit: Oh, seeing Phaaze88's post, I imagine you are probably referring to that 3x8 pin to 16 pin adapter that 3090 Tis use, rather than something that plugs directly into the PSU. In which case, the adapter could still potentially have some wiring problem, though it should be designed to be compatible, at the very least. Did the replacement card not come with one of those?

 

[Alucard4]

Recap:
First card, LEDs came on, but no POST. Corsair RM650 psu, deemed a good unit by many.
Second card, same response. Changed to Corsair HX1200, great unit. Tried gpu in different PCs, no change.
No riser devices were involved.
End recap


Do you have any older gpus on hand to try?
Back-tracking to the first Holo: When you plugged the 3 PCIe cables in to the 16pin adapter that was included with the gpu, did you plug the ends that were the split 6+2, or did you connect the fixed 8pin to the adapter?

Yes, my PC works flawlessly with my GTX 1080 Ti.

I plugged the adapter cable with split 6+2 pins (labeled PCIe) while the fixed 8 pins are plugged to the PSU (Labeled PSU).

 

[Alucard4]

What sort of cable is this, exactly? Is this something that came with the new power supply, or an aftermarket cable, or something left over from the old PSU? Are you sure that it's compatible with that specific power supply? Modular power supply connectors will at times be wired differently on the PSU's end, sometimes even across different models from the same brand, so you want to make sure you are using cables specifically designed for that PSU. Otherwise, even if they physically fit into the plugs on the PSU, there's the possibility that they might be connecting to different lines than they should be, potentially damaging hardware. If this cable was not included with the PSU, did you try using the PSU's original cables first?




And how many 6+2 pin cables came with your HX 1200? If you have four cables, for example, you might try swapping the extra cable one at a time with each of the other three, in case one of those might have some problem. Though if a potential cable problem were to have caused damage due to incorrect wiring, that might not help at this point. You might also try plugging those cables into other PCIe connectors on the PSU's end, in case something were wrong with one of those, since I believe that PSU includes more connectors than included cables.


Are you sure the PC shop tested the card in a system with a PSU capable of handling it? I would think they would, but you never know.

I used only the original cables that came with the PSU in package, all connected to the PCIe/CPU output from the PSU then to the triple 8-pins adapter.

I tried multiple different PCIe cables that came with the PSU (I think five cables in total). Nothing worked.

The people at the shop said they used a Corsair 1000 Wats PSU and it didn't work, I've seen most of their merchandise and it's all good trademarks (e.g. Corsair, EVGA.. etc).

 

[Alucard4]

This the cable in question. It came with the graphics card, not the PSU.

 

[Phaaze88]

Yes, my PC works flawlessly with my GTX 1080 Ti.

I plugged the adapter cable with split 6+2 pins (labeled PCIe) while the fixed 8 pins are plugged to the PSU (Labeled PSU).

Ok. 1080Ti still works too...
Something's may be up with the 16pin adapter? I don't see an alternative for it.

 

[RodroX]

This sounds to me like another bad GPU, or what Phaaze88 wrote up there.

You tried the card on other PCs, the GTX 1080 works in yours. And the PSU and cables are all new.

 

[Alucard4]

What sort of cable is this, exactly? Is this something that came with the new power supply, or an aftermarket cable, or something left over from the old PSU? Are you sure that it's compatible with that specific power supply? Modular power supply connectors will at times be wired differently on the PSU's end, sometimes even across different models from the same brand, so you want to make sure you are using cables specifically designed for that PSU. Otherwise, even if they physically fit into the plugs on the PSU, there's the possibility that they might be connecting to different lines than they should be, potentially damaging hardware. If this cable was not included with the PSU, did you try using the PSU's original cables first?

And how many 6+2 pin cables came with your HX 1200? If you have four cables, for example, you might try swapping the extra cable one at a time with each of the other three, in case one of those might have some problem. Though if a potential cable problem were to have caused damage due to incorrect wiring, that might not help at this point. You might also try plugging those cables into other PCIe connectors on the PSU's end, in case something were wrong with one of those, since I believe that PSU includes more connectors than included cables.


Are you sure the PC shop tested the card in a system with a PSU capable of handling it? I would think they would, but you never know.

Edit: Oh, seeing Phaaze88's post, I imagine you are probably referring to that 3x8 pin to 16 pin adapter that 3090 Tis use, rather than something that plugs directly into the PSU. In which case, the adapter could still potentially have some wiring problem, though it should be designed to be compatible, at the very least. Did the replacement card not come with one of those?

The replacement card didn't come with a new one, I used the old one that was left from the original purchase package. The RMA doesn't require you to return the whole package, only the PSU.

 

[Alucard4]

Ok. 1080Ti still works too...
Something's may be up with the 16pin adapter? I don't see an alternative for it.

The question is, where can I find a replacement for this one ? So I can at least test it.

What is mind boggling, the graphics card backplate remains cold to touch at all time, it's really a weird issue.

 

[DRagor]

Yes, my PC works flawlessly with my GTX 1080 Ti

Ok, that pretty much rules out bad PSU cables.

This the cable in question. It came with the graphics card, not the PSU.

That one could be faulty. But since it came with GPU you would still need to RMA GPU (or at least cable only, but it takes same amount of time). Unless you can find such adapter locally and are willing to try using another one. That could definitely save you a lot of time, but there is no guaranty it will solve your problem. You may spend money for adapter and still be in same place.

 

[Alucard4]

Ok, that pretty much rules out bad PSU cables.

That one could be faulty. But since it came with GPU you would still need to RMA GPU (or at least cable only, but it takes same amount of time). Unless you can find such adapter locally and are willing to try using another one. That could definitely save you a lot of time, but there is no guaranty it will solve your problem. You may spend money for adapter and still be in same place.

I see, I'm currently trying to find that adapter sold separately.

 

[DRagor]

I see, I'm currently trying to find that adapter sold separately.

That seems to be a problem too. Did a quick internet search and didn't found any. No real surprise though as there is exactly one card that uses them.

 

[Alucard4]

That seems to be a problem too. Did a quick internet search and didn't found any. No real surprise though as there is exactly one card that uses them.

Yeah it sucks, no way around doing another RMA.

 

[dotas1]

Yeah it sucks, no way around doing another RMA.

You can also link them this thread that lists everything that you have done and tried so far.

 

[Alucard4]

You can also link them this thread that lists everything that you have done and tried so far.

Thank you for this suggestion, I've just done that. Hopeful something positive will come out.

 

[Alucard4]

Ok, I contacted them and they said even the older one was working in their testing but they replaced it anyways due to RGB LED issue. They say the replacement was tested and should be working.

So I dug-out my old Asus Z97-A, Intel 4690K, Kingston 8gb ddr3 ram with the Corsair HX 1200 PSU.

This mobo still works flawlessly.

I tried the 3090ti, didn't work yet, but still I didn't try all different PCIe cables.

Note: it seems the HX 1200 Came with 2 PCIe cables only, I was always using a different brand PCIe cable to be the third.

 

[Alucard4]

Now I have some hope it will be working, I contacted Corsair customer support for help and advise regarding the HX 1200 compatibility with 3090ti

 

[Alucard4]

That seems to be a problem too. Did a quick internet search and didn't found any. No real surprise though as there is exactly one card that uses them.

Found it !

https://www.moddiy.com/products/Cus...or-NVIDIA-RTX-3090-Ti-Series-Mini-12-Pin.html

This one connects directly to the PSU no PCIe cables needed. I ordered it already. Fingers crossed !

 

[drivinfast247]

Note: it seems the HX 1200 Came with 2 PCIe cables only, I was always using a different brand PCIe cable to be the third.

That's your issue. NEVER use any cable besides the ones the PSU came with or the correct aftermarket set.

 

[Alucard4]

That's your issue. NEVER use any cable besides the ones the PSU came with or the correct aftermarket set.

Ok, Is it possible I fried the GPU with this mistake ? it's still solid led-on and I did the same thing to the older one (still worked with zotac testing).

The PSU is stable and works fine still

 

[DRagor]

Found it !

https://www.moddiy.com/products/Cus...or-NVIDIA-RTX-3090-Ti-Series-Mini-12-Pin.html

This one connects directly to the PSU no PCIe cables needed. I ordered it already. Fingers crossed !

You did specify your PSU model when ordering, right? Because HX uses different cables then other Corsair models AFAIK.

 

[Alucard4]

You did specify your PSU model when ordering, right? Because HX uses different cables then other Corsair models AFAIK.

Yes, I did.

 

[Alucard4]

Hope ?!