Dell EMC PowerEdge R640 Installation and Service Manual

System board jumpers and connectors

Table 1. System board jumpers and connectorsThis table describes the system board connectors and jumpers.
Item	Connector	Description
1.	P_RG1_CP	Right panel connector
2.	J_WS_PWRBTN	Power button connector
3.	J_INTRUSION_DET1	Intrusion switch connector
4.	J_FAN1U_2	Cooling fan connector
5.	Processor 2	Processor socket 2
6.	J_BATT_SIG	Battery signal connector
7.	J_BATT_PWR	Battery power connector
8.	CP	Left control panel connector
9.	B6, B12, B5, B11, B4, B10, B7, B1, B8, B2, B9, B3	Memory module sockets
10.	J_ODD	Optical drive connector
11	J_BP_SIG1	Backplane signal connector 1
12	J_BP1	Backplane connector 1
13	J_BP2	Backplane connector 2
14	J_STORAGE_M4	SAS connector 4
15	J_STORAGE_M3	SAS connector 3
16	J_STORAGE_M2	SAS connector 2
17	J_STORAGE_M1	SAS connector 1
18	J_SATA_C	SATA connector
19	J_USB_INT	Internal USB port
20	J_IDSDM_vFLASH	IDSDM/vFlash module connector
21	J_RISER2	Riser 2 connector
22	J_NDC	Network Daughter Card connector
23	J1	SATA connector
24	J_SATA_B	SATA connector
25	J_SATA_A	SATA connector
26	J_BP_SIG0	Backplane signal connector 0
27	J_BPO	Backplane power connector
28	J_R1_SS82_2	Riser 1 connector
29	J_TPM_MODULE1	TPM module connector
30	BATTERY	Battery connector
31	NVRAM_CLR	Clear NVRAM
32	PWRD_EN	Reset BIOS password
33	LED's	System board diagnostic LED indicators
34	J_VGA	VGA connector
35	J_STORAGE1	Mini PERC controller connector
36	J_USB_INT1	USB connector
37	Processor 1	Processor socket 1
38	A6, A12, A5, A11, A4, A10, A7, A1, A8, A2, A9, A3	Memory module sockets