Error code

Gigabyte D6

GIGABYTED6
POST Code· Shown on the motherboard's 2-digit Debug Display during boot.

What it means

Console Output.

Per pc-seed:Gigabyte

No Console Output Devices are found.

Per pc-seed:Gigabyte, p41

How to fix it

  1. GPU firmware issue; flash VBios.

Not affiliated with Gigabyte. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.