PCIe actually includes stand-by power, so this card using usb-c PD and PoE instead would suggest idle power consumption is significant.

> It uses about 2-3 Watts at idle, and 4-6 watts when you're remoted in controlling the screen.

I think ATX only requires around 5 W minimum for 5 Vsb so yeah…

It’s kinda hard to measure the power use of Ilom, something like an AST2500, for a number of reasons. They do get slightly warm, so the chip itself probably burns around 1 W. But system power use when on is of course also increased due to the various links (PCIe, NIC links etc.). Plus around .5-1 W for the always-on Ethernet link - EEE and a quiet management network would help here.