Asus P9D-MH/SAS/10G-DUAL - Manual (Page 49)

ASUS P9D-MH Series 2-29
6. VGA connector (16-1 pin VGA_HDR1)
This connector supports the VGA High Dynamic-Range interface HDR1.
7. Broadcom 10GbE controller setting (3 pin BCM10G_SW1)
This jumper allows you enable or disable the Broadcom 10Gb chip. The Broadcom
10Gb chip is a converged controller that enables convergence of all the possible
network communications in a server such as data network. Set to pins 1-2 to enable,
otherwise set to pins 2-3 to disable the Broadcom 10Gb chip.