BobPhoenix,
I have the same board as your server 0, with 2x Supermicro MVP8 and a HVR2250. Running ESXI 5.1 Unraid runs like a breeze. I've passed through the HVR and i can see it on my Win7 VM. It works but as soon as I flip more channels a couple of times or stop a stream then i get a BSOD or PSOD. I've played with setting in the VMX file and PASSTHROUGH.MAP files. Do you mind sharing your settings/setup both VMX and passthrough files as well. I'm really desperate