All running linux?
lspci -v
two examples:
01:00.2 System peripheral: Hewlett-Packard Company iLO3 Management Processor Support
and Messaging (rev 05)
Subsystem: Hewlett-Packard Company Device 3381
01:04.4 USB controller: Hewlett-Packard Company Integrated Lights-Out Standard Virtual USB Controller (prog-if 00 [UHCI]) Subsystem: Hewlett-Packard Company iLO2