Lenovo 391 Server User Manual


 
Figure27. System board components
1 Power Management Bus (PMBus) connector 20 Internal USB 2.0 Type A connector
2 TPM connector
21 Internal dual-port USB 2.0 connector 2
3 Memory slot 4 (DIMMB2) 22 Internal dual-port USB 2.0 connector 1
4 Memory slot 3 (DIMMB1) 23 System board battery
5 Memory slot 2 (DIMMA2)
24 Front panel connector
6 Memory slot 1 (DIMMA1) 25 System board jumper blocks
7 iButton socket
26 SATA SGPIO connector
8 Main power connector 27 Hard disk drive LED connector
9 5-pin system fan 2 connector
28 DIT module connector
10 Microprocessor 29 Internal serial connector
11 Intel C202 chip 30 PCI card slot (PCI slot 1)
12 4-pin system fan 1 connector
31 PCI Express x4 card slot (PCI-E slot 2)
13 SATA connector 1 32 BMC chip
14 SATA connector 0 33 PCI Express x8 card slot (PCI-E slot 3)
15 SATA connector 3 34 PCI Express x8 card slot (PCI-E slot 4)
16 SATA connector 2
35 Microprocessor fan connector
17 SATA connector 5 36 System fan 3 connector
18 SATA connector 4
37 Microprocessor power connector
19 iKVM key connector
Chapter 3. Product overview 43