GPU Won't Work in my Computer, Works in other.

huchick · Sep 13, 2017

So I've just bought all the parts for my PC (specs listed below). Here is the problem:
- GPU won't work in my computer
- GPU works in brothers computer
- DIfferent GPU works in my computer (R9 270x)

Here is what I've tried:
- Reinstalling drivers (GPU should still actually work without them)
- Ensuring cables are plugged into the GPU
- Ensuring it's in the PCIE slot correctly
- Trying other PCIE slots
- Using a different power slot in the PSU
- Using different PSU cables
- Clearing CMOS

Notes I should add:
- It shows up in device manager
- Fans turn on and so do LEDs
- I've seen builds with same GPU and mobo
- PSU definitely has enough power

I may have forgotten things but that's about it. I did dot points so you can read quickly.

Specs:
i7 7700k @ 4.2GHz
Thermaltake Water 3.0 w/ Corsair ML120 Red LED
Trident Z RGB 4x8GB 2400MHz
ASRock Fatal1ty Gaming K6 Z270
MSI GAMING X GTX 1070 @ 8GB
Samsung 250GB EVO M.2 NVME
Seagate SSHD 4TB
EVGA Supernova G1 650W
Phanteks P400s
Samsung CF791 3440x1440 @ 100Hz

Thank you

NEDZHIP · Sep 13, 2017

Please remove the PSU cable and turn on the pc without PSU cable installed. See if fans are spinning, and check if you get signal saying that you have to provide extra power with PSU.

JoeMomma · Sep 13, 2017

- Clearing CMOS

When you cleared CMOS you set the graphics back to use the integrated GPU in your i7.
Try going into BIOS and setting the graphics to use PCIe.

I hope it's that simple.

NEDZHIP · Sep 13, 2017

JoeMomma :

I don't think that will be a solution, because he said that other graphic cards are working. If it's about the BIOS settings other graphic cards shouldn't be working too.

fauzan_22 · Sep 13, 2017

@ huchich as JoeMomma suggested do try checking your bios settings to ensure primary display is set to use pci e instead of onboard display and see if it works then.

huchick · Sep 13, 2017

JoeMomma :

The other GPU worked fine, meaning it's set to use PCIE without me having to tweak any settings at all.

fauzan_22 · Sep 13, 2017

It's possible that the r9 270x requires less power to run than the gtx 1070 so the problem may be lying with the psu or the motherboard pci e slots not being able to deliver enough power for a post.

huchick · Sep 14, 2017

fauzan_22 :

The only other PSU i have is an Antec 600w, not 80+ gold i dont think, not sure if its even bronze. Do I still use it?

fauzan_22 · Sep 14, 2017

I would suggest you try using your brothers psu to run the gtx 1070 and see how that goes.

huchick · Sep 23, 2017

fauzan_22 :

Didn't want to risk using his PSU, too much of a hassle to take out and I had an alternative. Because I know that a dual-6 pin GPU works with my power supply, that means the 6 pin power cables work. So I used a 6 to 8 pin converter which actually worked in my old computer with his PSU, so I tried that, the GPU lights up, fans spin, doesn't work. Same as before. I might take it to a computer store tomorrow and throw hundreds down the drain if I can't get a solution

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GPU Won't Work in my Computer, Works in other.

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