Dell C5220 owner manual 112, JP5

1Hard drive board connectors (PCI-e x4)

3SDHC module

(System supports one SDHC card)

5ME recovery mode header (JP10)

7CPU socket

9NIC1/NIC2 RJ45 connector

11Power button

13DIMM slots

15BIOS recovery mode jumper (JP11)

17SATA connectors (hard drive 1)

19Hard drive board connectors (PCI-e x8)

2 BMC disable header (JP1)

4BIOS/BMC COM port switch header (JP3/JP4)

6 COM port connector (J9)

8Mezzanine card connector (8-sled only)

10VGA/USB connector

12Battery socket

14NVRAM clear setting (JP5)

16SATA connectors (hard drive 0)

18SATA connectors (hard drive 2)

20SATA connectors (hard drive 3)

Table 5-1. System Board Jumper Settings

Jumper	Description	Default Setting	Function
JP1	BMC disable header	Open	Debug only
	(JP1)		Do not install jumper
JP3/4	BIOS/BMC COM	1&2: BIOS COM	1&2: BIOS COM port header
	port jumper		(Default)
			2&3: BMC debug header
JP5	NVRAM clear	1&2: Hold	1&2: Hold (Default)
			2&3: Clear NVRAM & password
JP10	ME recovery mode	Open	Debug only
			Do not install jumper
JP11	BIOS recovery	Open	1-2: BIOS recovery mode
	jumper

NOTE: BIOS default settings are loaded after an NVRAM clear procedure. All user defined settings are lost.

112

Jumpers and Connectors