GTX 1070 causing PSU to not boot

Asha427 · Oct 10, 2018

I have a Corsair hx850i (850watt) and a GeForce GTX 1070 gfx card.

I went to boot up my PC the other day and out of the blue it just didn't power on. It was working only 12 hours previous.

I did some troubleshooting, unplugged ram, and other components thinking it could've been there issue. Then I went and bought a new PSU. Well the PSU still didn't fix the issue. I unplugged my gfx card from the PSU and voila! The PC booted.

I have had zero issues with my card in the past and am really shocked as to what could be causing the issue here. I haven't had any major power surges or anything. I have everything on power strips (not Daisy chained).

Any suggestions on how I can test if the graphics card is truly at fault? I really don't want to buy a new one since prices for the new cards are insane right now.

Thank you!

jojesa · Oct 10, 2018

Check that the GPU is seated properly and that the power is properly connected.
Reset the BIOS to default settings and try again.
Do you have a friend that might allow you to install the GPU on their system?

Asha427 · Oct 10, 2018

jojesa :

I'll see if I can try it on my old system. I want to avoid resetting bios atm only because I have some tweaking for my CPU.

Would moving it to another PCI-E slot be worth it?

jojesa · Oct 10, 2018

Asha427 :

Which motherboard do you have?
If you have a x8 PCIe slot then it should be fine.
There wouldn't be any actual effect on the performance...since is not using all available bandwidth.

Asha427 · Oct 10, 2018

My MOBO is an ASUS Prime Z370-A LGA1151 the 300 series.

jojesa · Oct 10, 2018

The ASUS Prime Z370-A has 2x PCIe 3.0 x16 slots, so if it works on the next PCIe socket, there is nothing to be concerned.

Asha427 · Oct 10, 2018

I'll try that and in another PC!

EDIT: I put the card in another PC and it started on fire. Seems like a graphics cards is the next best option.

jojesa · Oct 10, 2018

Asha427 :

The GPU caught fire?

Asha427 · Oct 10, 2018

Yes, I didn't plug in the power cables from the PSU just had it plugged into the PCI-E and it caught fire lol

Second time I've seen this in eleven years of building.

jojesa · Oct 10, 2018

Sorry to hear that.
I have seen GPU capacitors bursting, fan falling off, and GPU board cracking in half.
I have never seen a unplugged GPU just catching on fire and I have been building PCs since GPUs were installed on PCI and AGP slots.

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GTX 1070 causing PSU to not boot

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