Enabling Multiple GPUs in BIOS: A Solution for Display Issues?

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SUMMARY

To enable multiple GPUs on a motherboard (MOBO), users must adjust settings in the BIOS. The recommended procedure involves disabling the PCIE slot for the second GPU, rebooting, and then re-enabling the slot. This method is confirmed by the MOBO manufacturer and aims to resolve display issues when using two GPUs. Users should be aware that this process may need to be repeated after each power cycle, although this is not guaranteed.

PREREQUISITES
  • Understanding of BIOS settings and navigation
  • Familiarity with PCIE slots and GPU installation
  • Basic troubleshooting skills for hardware configurations
  • Knowledge of motherboard specifications and compatibility
NEXT STEPS
  • Research how to navigate BIOS settings on your specific motherboard model
  • Learn about PCIE slot configurations and their impact on GPU performance
  • Explore troubleshooting techniques for dual GPU setups
  • Investigate potential BIOS updates that may improve multi-GPU support
USEFUL FOR

This discussion is beneficial for PC builders, gamers looking to enhance graphics performance, and hardware enthusiasts interested in optimizing multi-GPU configurations.

member 428835
Hi PF!

I am trying to have 2 GPUs work on one MOBO, but currently the screen only works with one GPU installed (doesn't matter which). I contacted the MOBO manufacturer, and they said to go into BIOS and disable one of the PCIE slots pertaining to the second GPU. Then plug in the second GPU, reboot, go into BIOS and turn the PCIE slot on. Can anyone with experience confirm this (there was a slight communication barrier, so I want to ensure this is correct)?

Thanks so much
 
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It seems reasonable. BIOS could have gotten off to a wrong start and this puts the machine back to a single GPU state and then later to a double GPU state.

Hopefully you won’t have to do this each time the machine is powered on or rebooted.

Of course, caveats galore here as it may not work anyway.
 
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jedishrfu said:
It seems reasonable. BIOS could have gotten off to a wrong start and this puts the machine back to a single GPU state and then later to a double GPU state.

Hopefully you won’t have to do this each time the machine is powered on or rebooted.

Of course, caveats galore here as it may not work anyway.
Alright, thanks. Just wanted to make sure! Oh gosh, why'd you even mention I might have to do this each time? LOL please no!
 
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