My computer doesn't boot when I plug my Gigabyte RX 460 4 GB GPU. The motherboard start up screen appears and the fans are working but it does not get past it.
My motherboard is a H81M-VG4 R2.0
My PSU is a local brand Kmex 450w
RAM is HyperX Fury 8GB DDR3 1600 MHz.
Using Windows 10 Pro 64 bits
I updated BIOS version to P1.50. This is what happened:
1. Upgraded BIOS version
2. Turned OFF computer
3. Plugged the RX 460
4. The computer booted correctly
5. Updated AMD drivers
6. Worked perfectly
7. Turned OFF computer
8. I was unable to boot it again.
9. Removed GPU
10. Computed booted correctly
11. Re-inserted GPU
12. Computer booted correctly
13. Turned OFF computer
14. I was unable to boot it again
15. Rinse and repeat
I am more suspecting your power supply which doesn't supply enough power. You can better opt for better known brands such as XFX,Corsair,Antec,Seasonic, ... PSU.
Suspect psu (what model "PC....."PX").
What was previous graphics card ?.
Edit: letter change
Update your motherboard BIOS to the latest version and see if it works...
If it doesnt also try changing the boot mode from UEFI to BIOS and see if it works.
On my motherboard in UEFI boot mode, with the RX480 the screen doesnt even show anything. Changing to BIOS mode it worked...
Might be the same issue that your getting or other...
ps: And anyway that PSU doesnt look like its any great either, but no idea what you have (though its probably enough for that system, but, its better to always have a safer big margin).
This is a brand new computer, I built it from scratch. This is its first GPU. The PSU is a very generic 450w model.
The UEFI compatibility mode of the motherboard is turned to Enabled. I think I have the latest BIOS version for what I was able to find.
Try booting up without the video card. Use the onboard graphics. It it works then the power supply is a good place to start.
Well, I was wrong, I updated the BIOS version and then I was able to boot the computer with the video card. However, when I turned it off and tried to boot it happened again. I took the gpu off and then plugged it again and it worked. Happened the same this morning. I can tell the motherboard is the problem.