Dell PowerEdge MX840c EMC PowerEdge MX840c Installation and Service Manual - Page 126

Table 16. System board jumpers and connectors continued, Connector, Description

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Table 16. System board jumpers and connectors (continued) Item Connector 9. BBU_SIGNAL 10. CPU1 11. A6, A12, A5, A11, A4, A10 12. B3, B9, B2, B8, B1, B7 13. J_MEZZ_A1 (CPU1) 14. CPU2 15. UPI 16. INTERNAL USB 17. J_MEZZ_B1 (CPU2) 18. B10, B4, B11, B5, B12, B6 19. SYS_PWR_CONN 20. J_MINI_MEZZ_C1 (CPU2) 21. IDRAC_MODULE 22. AUX 1 23. AUX 2 24. BATTERY 25. BOSS_MODULE/IDSDM 26. PERC (CPU1) 27. BP_PWR_CONN Description Battery Backup Unit (BBU) signal connector Processor 1 Memory module sockets Memory module sockets Mezzanine card (Fabric A1 card) connector Processor 2 UPI connector Internal USB 3.0 Mezzanine card (Fabric B1 card) connector Memory module sockets System power connector Mini Mezzanine card (Fabric C1 card) connector iDRAC card connector AUX 1 cable connector AUX 2 cable connector System battery BOSS module/IDSDM connector PERC card connector Backplane power connector Figure 92. PEM board jumpers and connectors 126 Jumpers and connectors

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Table 16. System board jumpers and connectors (continued)
Item
Connector
Description
9.
BBU_SIGNAL
Battery Backup Unit (BBU) signal
connector
10.
CPU1
Processor 1
11.
A6, A12, A5, A11, A4, A10
Memory module sockets
12.
B3, B9, B2, B8, B1, B7
Memory module sockets
13.
J_MEZZ_A1 (CPU1)
Mezzanine card (Fabric A1 card)
connector
14.
CPU2
Processor 2
15.
UPI
UPI connector
16.
INTERNAL USB
Internal USB 3.0
17.
J_MEZZ_B1 (CPU2)
Mezzanine card (Fabric B1 card)
connector
18.
B10, B4, B11, B5, B12, B6
Memory module sockets
19.
SYS_PWR_CONN
System power connector
20.
J_MINI_MEZZ_C1 (CPU2)
Mini Mezzanine card (Fabric C1 card)
connector
21.
IDRAC_MODULE
iDRAC card connector
22.
AUX 1
AUX 1 cable connector
23.
AUX 2
AUX 2 cable connector
24.
BATTERY
System battery
25.
BOSS_MODULE/IDSDM
BOSS module/IDSDM connector
26.
PERC (CPU1)
PERC card connector
27.
BP_PWR_CONN
Backplane power connector
Figure 92. PEM board jumpers and connectors
126
Jumpers and connectors