Lenovo ThinkStation E31 Hardware Maintenance Manual page 81

1
4-pin power connector
2
Microprocessor fan connector
3
Memory slot 1 (DIMM1)
4
Memory slot 2 (DIMM2)
5
Memory slot 3 (DIMM3)
6
Memory slot 4 (DIMM4)
7
Thermal sensor connector
8
4-pin power connectors (2)
9
14-pin power connector
10
SATA connectors 1 and 2 (SATA 3.0
connectors)
11
eSATA connector
12
SATA connectors 3 and 4 (SATA 2.0
connectors)
13
Front fan connector
14
Front panel connector (for connecting the
power switch and LED indicators)
15
Clear CMOS (Complementary Metal Oxide
Semiconductor) /Recovery jumper
16
Front USB connector 1 (for connecting USB port 1 and 2
on the front bezel)
17
Battery
18
Front USB connector 2 (for connecting additional USB
devices)
19
Serial (COM2) connector
20
Internal speaker connector
21
Front audio connector (for connecting the microphone and
headphone connectors on the front bezel)
22
PCI card slots (2)
23
DisplayPort connector
24
PCI Express x1 card slot
25
PCI Express x16 graphics card slot
26
Rear fan connector
27
Cover presence switch connector (Intrusion switch connector)
28
Microprocessor
29
PS/2 keyboard and mouse connector
75
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Chapter 9 Locations