Dell PowerEdge R7525 Installation and Service Manual

System board connectors

Table 1. System board jumpers and connectorsSystem board jumpers and connectors
Item	Connector	Description
1.	SL5_CPU2_PA4_SA1	PCIe/NVMe/SATA connector 5
2.	IO_RISER4 (CPU2)	Riser 4
3.	SL6_CPU2_PB4	PCIe/NVMe connector 6
4.	IO_RISER3 (CPU2)	Riser 3
5.	SIG_PWR_3	GPU power
6.	J_R3_PCIE_PWR	Riser 3 power connector
7.	Rear I/O connector	Rear I/O connector
8.	Coin cell battery	Coin cell battery
9.	IO_RISER2_A (CPU1) IO_RISER2_B (CPU2)	Riser 2
10.	OCP NIC 3.0 connector	OCP NIC 3.0 connector
11.	J_TPM	TPM
12.	SIG_PWR_0 (Rear BP)	Backplane signal and power
13.	LOM connector	LOM connector
14.	IDSDM/Internal USB connector	IDSDM/Internal USB connector
15.	SIG_PWR_4	GPU power
16.	MB_FRONT_VIDEO	Front VGA
17.	SL8_CPU1_PA2	PCIe/NVMe connector 8
18.	IO_RISER1 (CPU1)	Riser 1
19.	SL7_CPU1_PB2	PCIe/NVMe connector 7
20.	BOSS_CARD_PWR	BOSS card power
21.	PWRD_EN	PWRD_EN(Jumpers)
22.	RGT_CP	Right control panel
23.	FAN_2U6	Fan 6
24.	NVRAM_CLR	NVRAM_CLR(Jumpers)
25.	A16, A8, A15, A7, A14, A4, A13, A3	DIMMs for processor 1 channels E, F, G, H
26.	FAN2U5	Fan 5
27.	SIG_PWR_2	Backplane signal and power
28.	CPU1	Processor 1
29.	FAN_2U4_1U5/6	Fan 4
30.	SL4_CPU1_PA1_XA1	XGMI/NVMe connector 4
31.	A1, A9, A2, A10, A5, A11, A6, A12	DIMMs for processor 1 channels A, B, C, D
32.	SIG_PWR_1	Backplane signal and power
33.	SL3_CPU1_PB1_XB1	XGMI/NVMe connector 3
34.	SL2_CPU2_PA3_XA2	XGMI/NVMe connector 2
35.	FAN_2U3	Fan 3
36.	B16, B8, B15, B7, B14, B4, B13, B3	DIMMs for processor 2 channels E, F, G, H
37.	SL1_CPU2_PB3_XB2	XGMI/NVMe connector 1
38.	FAN_2U2	Fan 2
39.	CPU2	Processor 2
40.	FAN_2U1_1U1/2	Fan 1
41.	B1, B9, B2, B10, B5, B11, B6, B12	DIMMs for processor 2 channels A, B, C, D
42 .	LFT_CP	Left control panel