Heh, so a friend gave me a Radeon Vega 64 card to use in my Dell PowerEdge T630 server (hackintosh virt machine plan) but as I got it slotted in, I realized.. I have no power for it!
Further research says I need to find a specialized Dell GPU PIB (power interposer board) and cables. Yeesh. So now I have a video card in the server with no power!
Enh, ebay came through, but I need to find the right cables because I'm assuming the boards use some whacky Dell propietary shit.
@Toxic_Flange
To plug GPUs into old Mac Pros you had to use just special cables that were available on AliExpress for pennies, but there was always an option to use a passive converter from Molex connector to power the GPU, using a power board seems like even more trouble — can't you do something similar and draw some power from optical or hard drives?
@m0xee I’ll take another look at the molex but it’s a 300w gpu. I’m good for server psu, dual 750s and I got a spare single 1000w on hand but I’m also running very low power CPU and only doing a single VM so far in proxmox. Thanks for the info!
@Toxic_Flange
It's also important to keep in mind that the PSUs have to pack enough power to power that GPU — server ones usually have plenty reserved, but if your GPU starts drawing more than they can provide under heavy load, you motherboard might get fried 😱