Dell PowerEdge T310

This server mainboard has a WPCM450 BMC running DELL BMC or iDRAC firmware.

Power supply

The power supply uses the same connector as a 24-pin ATX power supply, but a custom pin-out. Connecting an ATX power supply doesn't result in a working system.

function	pin	pin	function

      |  1  |  13 |
      |  2  |  14 |
      |  3  |  15 |
      |  4  |  16 | PS_ON# (idles at 3.3V)
      |  5  |  17 |
      |  6  |  18 | GND

GND | 7 | 19 | GND | 8 | 20 | GND N/C | 9 | 21 | GND GND | 10 | 22 | GND GND | 11 | 23 | 5Vsb | 12 | 24 |

The board draws around 500mA on the 5V standby rail.

UART

Test points for the BMC's debug UART are marked on the board. The pins are as follows:

BMC_UART
[] () () ()
1  2  3  4

pin	function
1	3.3V
2	RX
3	TX
4	GND

The UART is run at 115200 baud.