Question GTX 1070 suddenly stopped being detected

[Lucas Pinho]

Hello, guys. First time posting here, i really need some help.

Specs:
CPU: Intel Core I7-7700K Kaby Lake LGA 1151 4.2Ghz
Motherboard: ASRock H110M-HG4
GPU: Gigabyte Geforce GTX 1070 Windforce OC Edition 8GB GDDR5 256Bit, GV-N1070WF2OC-8GD
PSU: Gamemax GM600 600W 80 Plus Bronze

If you need more information about HDs or RAMs just let me know.

So, i was using the PC on a sunday evening normally, everything fine, went to sleep and turned off the PC (i have nobreak), next day i tried to turning on but my main monitor wasn't receiving any signal, only the secondary monitor plugged in the Onboard.
I checked on the devices manager and the GPU wasn't being detected, i tried to installing new drivers and it said that no hardware of Nvidia was found plugged in, i tried to use nvflash to reset the bios of the GPU and i got the same error: no Nvidia hardware found.

I even opened the GPU and replaced the thermal paste in it, but didn't worked, i didn't know if it was PSU, motherboard or PCIe cable problem, so i plugged a old GPU in it that required TWO 8pins, i only used one (because i only have one), and i turned the PC on and than he shut off and i felt a smell of burning/fried, i removed the cables and took off the old GPU and i smelled her, she definily fried so: the PSU was able to send power to the GPU (pci cable and PSU possibly is fine), but the current GPU isn't being able to be detected, i know the most smart solution is to test on another computer, but i don't have one, i can take to a store. Is it possibled that my GPU fried? How can this be possible if the PC was turned off and i have nobreak (i think that protects against power surges, i don't know). Reinstalling windows could fix the problem? I don't think so because she isn't being detected in any circunstances, so doesn't seem like a driver problem. The bios is set to use the PCI Graphic Card as primary video adapter, i changed a lot of settings, i changed the legacy to UEFI, UEFI to legacy, disabled both, so, i really don't know what to do.

Any ideas? I'd really appreciate some help, thank you.

Sorry for the bad english, it is not my native language.

 

[Phaaze88]

Psu is crap would be the likely suspect; it damaged the 1070 over time.

When you plugged in one 6+2 into the older gpu, even though it requires 2 of them, nothing should've happened, but it let out the magic smoke anyway.
Take the 1070 to the shop - but if they can't detect it either, then it's gone.

 

[Lucas Pinho]

Psu is crap would be the likely suspect; it damaged the 1070 over time.

When you plugged in one 6+2 into the older gpu, even though it requires 2 of them, nothing should've happened, but it let out the magic smoke anyway.
Take the 1070 to the shop - but if they can't detect it either, then it's gone.

The PSU should be able to provide enough power, but you're right, it's actually a bad PSU. Which PSU would you recommend for my specs if the problem isn't a dead GPU?
Aditional specs:
1 TB HD
1 120 GB SSD
Corsair H45 WaterCooler
1 16GB RAM Kingston

Edit: one thing that i forgot to mention, it's that i live closed to the beach, so components eventually gets rusty.

 

[Phaaze88]

Would need to know what your options are before making suggestions - like an online store. If shopping locally, then country and currency.

Edit: one thing that i forgot to mention, it's that i live closed to the beach, so components eventually gets rusty.

A humidifier should help with that, if you don't already use one.

 

[Lucas Pinho]

Would need to know what your options are before making suggestions - like an online store. If shopping locally, then country and currency.


A humidifier should help with that, if you don't already use one.

I live in Brasil. I searched and found one that provides enough power and people recommends is this one: XPG Core Reactor 650W, 80 Plus Gold Modular

Edit: this PSU is actually expensive here, but i found out that it is for half of the price in a very famous store of eletronics here in Brasil and the price is going back to the normal in one day, i think i'm going to buy, and if doesn't fix the issue, then i'll accept it that the GPU is dead.

Thank you for your asnwer, i thought that by putting only one 6+2 pin in the old GPU that had two 6+2 pin was the why she fried, i had discarded PSU as the problem, but you made me rethink and been very helpful.

 

[Phaaze88]

I live in Brasil. I searched and found one that provides enought power and people recommends is this one: XPG Core Reactor 650W, 80 Plus Gold Modular

Yes, that is a great one.