[SOLVED] ASUS RTX 3070 KO - Can't POST Computer. RMA?

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greenmrt

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May 19, 2015
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Hi folks,

I went to play Overwatch today and both monitor screens quickly artifacted like an old 16-bit Nintendo Game that hangs (mostly black screen). I rebooted and the computer didn't post. I also did the following to no avail:
  • Removed and reseated the memory
  • Cleared CMOS
  • Swapped PCI-E power cables
  • Removed and reseated the Graphics Card
  • Removed all bootable drives
The odd thing is that the LED's in the GPU light up and the fan spins right up. Nothing was hot to suggest overheating. I'm tempted to take it apart and take a look, but I suspect that isn't what's best for the warranty.

The setup that has been running fine for months is:
  • ASUS X570 TUF GAMING PLUS WIFI
  • CORSAIR 2 x 8GB 3200 DDR4
  • AMD 3700X CPU
  • ASUS RTX 3070 KO GPU
  • SEASONIC 750W PSU
  • 2 x WD BLACK SSD 1TB
The Video LED on the board lights white when I try to boot. I'll head into work tomorrow and see if I can find a cheap GPU laying around to confirm that the card has an issue. Is there any easy problem-solving I can do before I RMA this puppy? It may be 2022 before ASUS gets it back to me.

Thanks for your sage advice!!

~Matt
 
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It might be worth checking the output of your power supply. I think Seasonics are not as reputable as EVGA. It wouldn't surprise me if a voltage drop was the cause of your video card not performing up to par.
 
Well, I took the 3070 KO to work and popped it into a machine and it worked fine! I ordered a new power supply. Let's hope that is the problem. I would say what a bummer, but new 3070's cost a fortune right now. OMG! I'll count myself lucky if it's the power supply.
 
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It might be worth checking the output of your power supply. I think Seasonics are not as reputable as EVGA. It wouldn't surprise me if a voltage drop was the cause of your video card not performing up to par.
Seasonic is arguably the best PSU manufacturer in the world. That being said, every company including Seasonic and EVGA make lemons.
Well, I took the 3070 KO to work and popped it into a machine and it worked fine! I ordered a new power supply. Let's hope that is the problem. I would say what a bummer, but new 3070's cost a fortune right now. OMG! I'll count myself lucky if it's the power supply.
I hope that it is the PSU as that is the easiest to source part right now.
 
Thanks so much. I got a fairly expensive model PSU at that, but I'm not sure what else it could be. The X570 motherboard is basically new and everything on it lights up and whirls like a champ. The CPU and memory both pass the hardware check as seen on the motherboard. The PSU is almost 4 years old, though. Maybe something went wrong. It is a bit fancy (hybrid mode and other stuff- I bought it because I liked the efficiency, 100% modular design, and white color originally)

Seasonic is arguably the best PSU manufacturer in the world. That being said, every company including Seasonic and EVGA make lemons.

I hope that it is the PSU as that is the easiest to source part right now.
 
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It may be that either the connection to the socket on the wall or to the back of the PSU was loose. Either way, cheers!

That's what's weird. That's the very first thing I suspected. I made sure that they were tight in both places. How does a power cord even fail??
 
That's what's weird. That's the very first thing I suspected. I made sure that they were tight in both places. How does a power cord even fail??
It could be the wall socket that is loose internally. Cheap commercial sockets sometimes have QC issues. At the back of the PSU where you plug the cord in could have loose prongs.
Regardless, let us know if you have any more issues.
 
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