GA-Z270P-D3

[Adamvolga]

Hi everyone

 I am building a rig using GIGABYTE GA-Z270P-D3  and  MSI duke GeForce GTX 1080ti.  Soon as I add the 6th GPU  my system won't boot I get an error  "reboot and select a proper device or insert in boot media in a selected boot device and press a key" and also cannot get to the bios with 6th GPU in place.  I have 6a bios the version that gigabyte is recommending for mining also I tried the last version F7 with no luck.  I tested the 6th GPU by removing the 5th and all worked fine so no hardware issues.  Any advice?  

Thank you,

Adam

[intel23]

You have to downgrade the BIOS to F6. After doing this all 6 cards will work , no more error Code12...

https://www.gigabyte.com/Motherboard/GA-Z270-Gaming-K3-rev-10#support-dl

F6 not avaialble but link is working:

http://download.gigabyte.eu/FileList/BIOS/mb_bios_ga-z270-gaming-k3_f6.zip

If they remove the zip and you need the bios file add me on skype: felixfarago    :-D

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Thank you!

[Nux322]

Yo, did this work for you? I've got the same issue and am about to try it out. Will report back here with my results.