[solved] MSI Z77A-G45 Thunderbolt 5 gpu

[BlockChasers]

Not sure if anyone else has the same problem with this board but I finally was about to get 4 gpus to work.  I have seen most can only get 3 due to thunderbolt taking up pcie lanes.   On the latest bios I put all of the thunderbolt options to 0 and for pci-e I disabled gen3 support and increased the latency to 192+.  Disabled any unnecessary usb, sata etc. Also had to short one of the presence pins as seen in the photo.

https://i.imgur.com/SEoMT0e.jpg

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[Gazza1]

you can get 6 cards to work on that board using 1x risers, shorting slot #5 and not using slot 4.  no cards filling up the whole slot or 16x risers.

of course that depends on your OS.  But 5 will work without issue if you use slots 1,2,3,6,7.  Slot 5 is to be used last for the 6th card.

[alkaint]

i have nothing but a nightmares with this mobo , even though i have the normal one which is better than the thounderbolt minning wise i could not get the PCI_E4 to work they said it won't work if the PCE_E3 is active but i was not in my case and can't get that slot to work at all ,


anyway did you plug a x1 riser in the PCIE 16x ?? i also can't get my 1x riser to work in 16x i tested it on other 1x and normal slots and it worked but not on 16x

[BlockChasers]

you can get 6 cards to work on that board using 1x risers, shorting slot #5 and not using slot 4.  no cards filling up the whole slot or 16x risers.

of course that depends on your OS.  But 5 will work without issue if you use slots 1,2,3,6,7.  Slot 5 is to be used last for the 6th card.

Not the thunderbolt version.  Everything I was able to find on google is that most gaveup on this board for more than 3 gpu.

[BlockChasers]

After having 3 of these g45 thunderbolts I have decided to stay away from them.  On all 3, no matter what bios settings, more than 3 cards proves to be a ton of trouble.

[InCoinsITrust]

I had a bad luck with this mobo too, returned it and got my money back.