"Base System Device"

[coolVariable]

WTH is it?
Shows up in device manager as Other devices => Base System Device
Our new Dell Poweredge T310 has 6 of these.

Hardware IDs are something like
PCI\VEN_8086&DEV_D150&SUBSYS_00000000&REV11

or

PCI\VEN_8086&DEV_D151&SUBSYS_00000000&REV11

etc.

 

[VirtualLarry]

Uhm, did you google "VEN_8086&DEV_D150"? I come up with "QuickPath Interconnect". Obviously, it's a QPI bus controller.