Dell EMC PowerEdge R7425 Installation and Service Manual

System board jumpers and connectors

Table 1. System board jumpers and connectorsSystem board connectors and jumpers.
Item	Connector	Description
1	J_ODD	Optical drive power connector
2	J_FAN2_6	Cooling fan 6 connector
3	J_BP3	Backplane 3 power connector
4	J_FAN2_5	Cooling fan 5 connector
5	A9, A1, A10, A2, A11, A3, A12, A4 (CPU1)	Memory module sockets
6	J_FAN2_4	Cooling fan 4 connector
7	INTRUSION_DET	Intrusion switch connector
8	J_FAN2_3	Cooling fan 3 connector
9	CPU2	Processor 2
10	J_FAN2_2	Cooling fan 2 connector
11	J_BP_SIG1	Backplane 1 signal connector
12	J_BP1	Backplane 1 power connector
13	J_FAN2_1	Cooling fan 1 connector
14	B9, B1, B10, B2, B11, B3, B12, B4	Memory module sockets
15	B13, B5, B14, B6, B15, B7, B1, B8	Memory module sockets
16	J_R3_X24	Riser 3 connector
17	J_BP_SIG2	Backplane 2 signal connector
18	J_BP_SIG0	Backplane 0 signal connector
19	J_BP0 (RSR3_225W)	Backplane 0 power connector (Riser 3 PCIe 225 W power)
20	J_BP2 (RSR2_225W)	Backplane 2 power connector (Riser 2 PCIe 225 W power)
21	SATA_C/PCIE_C	PCIe card connector
22	SATA_D/PCIE_D	PCIe card connector
23	J_USB_INT	Internal USB connector
24	PWRD_EN	Reset BIOS password
25	J_IDSDM	IDSDM or vFlash connector
26	J_NDC	NDC connector
27	NVRAM_CLR	Clear NVRAM
28	J_SATA	SATA optical drive
29	J_R2	Riser 2 connector
30	SATA_A/PCIE_A	PCIe card connector
31	J_TPM_MODULE	TPM connector
32	BATTERY	Battery connector
33	J_R1	Riser 1 connector
34	SATA_B/PCIE_B	PCIe card connector
35	CPU1	Processor 1
36	A8, A16, A7, A15, A6, A14, A5, A13	Memory module sockets