Multiple GPU cards fit...

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Raevyn

New Member
Jun 17, 2019
2
0
1
Hello!

I am wondering how one goes about installing enough gpu cards to match your PCI lane limit even though you don't have that many slots or even room.
 

AmusedGoose

New Member
Mar 16, 2019
24
12
3
If your 40-lane CPU only has 32 lanes routed to the PCI-e slots, that's what you are limited to. Sometimes you can snag an extra 4-8 lanes with a m.2 to PCI-e connector but that's it.

In case you have for example 1 16-lane slot & 2 8-lane slots and want 4 GPU's on 8 lanes per GPU you can use bifurcation on the 16-lane slot if your motherboard supports it or an active PCI-e splitter (using a PEX chip) if your motherboard does not support bifurcation. These are rare but exist, Supermicro has a few but the design is a bit awkward.

You'll have to be creative to find how you will mount them ofc.