The original post: /r/homelab by /u/dondaplayer on 2024-03-24 21:26:43.

Hello! I figured this would be the best place to post this.

I am having a hair-pulling issue with this supermicro board of mine. I am trying to set up an ATX tower server with the board, and I intend to run windows on this machine with a dedicated GPU.

Here’s the issue: I can’t boot into Windows with any GPU except for one- my Sapphire Radeon HD5450. This card behaves fine, allows me to boot into the windows installer, use windows itself, etc, but when I tried to put a better GPU in after initial setup…all of them end up on a black screen after the BIOS POST screen (press f11 for boot, del for setup, etc). I am at a total loss.

I have tried multiple cards (RX 560, GTX 750ti, GT 1030) and the only one that works is my HD 5450. This board does not have an x16 slot, but they’re all x8 gen 3 slots so that should be fine. I have updated the BIOS, cleared the CMOS, even tried messing with some jumpers, but no matter what I do, it only makes it in to Windows with the HD5450.

Help? Not that it matters, but this machine has dual E5-2680v2’s and 24GB of DDR3.