Something Burnt While Installing New 2070s

Ljattsta on 21/12/2019 - 09:18
Last edited 21/12/2019 - 09:36 by 1 other user

Hey guys, first time poster.
Gigabyte 2070s windforce not working in my computer.

Computer specs
Asus IX Hero MB
Intel 7700k
corsair hx1000i PSU
Corsair 2 x 8gb ram

Steps taken:
- Took out old 1080 card and sold it
- connected new gpu with the 8pin coming from the psu. (started computer and it said it requires power cable to be connected)
- found a 6 pin in the box and plugged it in sata/peripheral port on psu to the 6 pin on gpu
-computer didn't turn on
- Took out card but left the 6 pin in the psu
- turned computer on ( heard a tick and burning smell)
- immediately turned off computer.
- Took out 6 pin cable from psu and started computer. runs absolutely fine.
- put card back in however with only the 8 pin and this time it didn't say "please connect power cable. I realised I should have used the Pcie 6+2 port on the psu. so found a cable and connected it up (at this time there's an 8 pin and 6 pin connected correctly on the GPU and psu. but bios and windows don't recognise the device.
- though the card blew up so returned it and they sent me a new one. Still same problem.

Is it most likely that the Psu is fried? or my Pcie slot from the motherboard?
MB slot still provides power to light up and power the fans of the GPU with the power cables connected so I'm thinking it's just the psu?
And I tried all the usual stuff like reset cmos, battery, gpu only setting in Bios, quick boot disabled etc etc but none of that worked.

any help would be appreciated. And yes I know I made a terrible mistake - you live you learn

• 

  EightImmortals on 21/12/2019 - 09:33

  +1

  Were you using the GPU (PCIE) outlets on the PSU?
  Why did you only hook up one GPU connector and not both?
  1000w PSU should be heaps so I'm not sure what you've done there.
  Does the PC boot up if you hook up your monitor to the mobo with eh 2070 removed?
  Does the PC boot up with the old GPU? (D'oh you already sold it before making sure the new one was working properly first. :) )

  "- Took out card but left the 6 pin in the psu "

  So was the other end of the plug still in the GPU when you did that or was it unplugged?

• 

  jattsta on 21/12/2019 - 10:23

  I was originally using the Pcie 8 pin that comes out of the psu (not a modular cable) for the 1080.
  Only hooked up one because I found the box of cables afterwards.
  PC runs fine with or without the card installed.

  The 6 pin was left in the psu without the card at which point I smelt something burn.Also note the 6 pin cable wasn't showing all pins on one end.

  • 

    EightImmortals on 21/12/2019 - 10:58

    And you didn't notice the 6 pin connector right next to the 8 pin one on the card itself when you plugged the 8-pin connector?

  • 

    bazingaa on 21/12/2019 - 11:49

    if you happens to have a multi meter, just check the voltage output at 6 pin and 8 pin connectors
    try unplugging PSU from mains for few hours and check again
    but if it doesn't show "please connect power cable." when the monitor is connected to the card, and outputs display though the onboard connectors, I suspect something happened to PCI-E slot.
    If you have another full length PCI-E 8x or 4x slot, just try with that also.

• 

  jattsta on 21/12/2019 - 11:21

  theres a 6 pin and 8 pin on the GPU.
  I connected the 8 pin to the modular 8 pin cable and the 6 pin to the sata port (which I now know should have been connected to the 6+2 pin on the psu.
  Is it the PSU which is causing my card to not read in the bios/windows or the Pcie slot burnt out? I didn't have the card in at the time something burnt out so i doubt it's the MB.
  Yes I know it's a mistake. Ahh well

  • 

    scrimshaw on 21/12/2019 - 11:34

    damage has already done so the only thing you can do is test the PCIE slot by inserting another PCIE device, whether it's a spare gpu or even a network card. But i think you've already answered that question since you tried a new RTX card.

    If the computer isn't detecting it, that means a fuse on the motherboard has blown somewhere. The fuse melts (self destructs) to protect the rest of the board.

• 

  jattsta on 21/12/2019 - 17:07

  So the fuse self destructs despite no gpu connected and only the wrong 6 pin connected to the PSU? Essentially what your saying is something blew through the existing cpu cables?