• Disconnect all GPU’s from the system, except one on the x16 slot.

• Connect a keyboard and VGA monitor to the motherboard.

• Boot into the BIOS by pressing delete when powering on.

• BIOS can also easily be accessed by disconnecting your SSD.

Navigate to: Advanced > CSM Configuration

Change Storage and Video to: UEFI

This is usually enabled by default, but is important to check.

Above 4GB MMIO BIOS assignment can be found on the Chipset tab.

Advanced > CPU Configuration > Intel Virtualization Technology > Disabled

Chipset > PCH-IO Configuration > PCH Azalia Configuration > Disabled

Chipset > System Agent (SA) Configuration > PEG Port Configuration

• Set PEG0, PEG1, and PEG2 to Gen2

• Save settings and reboot.

• Connect additional GPU’s and try to boot into HiveOS.

If the error persists, proceed to the next step: Disable IGFX. (Be sure to disconnect GPU’s except 1, again)

Chipset > System Agent (SA) Configuration > Graphics Configuration

• Set:
  Internal Graphics > Disabled

Primary Display > Auto

• Save settings and Reboot.

• Connect additional GPU’s and Boot into HiveOS. You will need to plug into the HDMI of one of your GPU’s to get display output now. The VGA and DVI ports are now disabled.