Locating Parts On The System Board - Lenovo ThinkStation S20 4157 Hardware Manual

Locating parts on the system board

98
Hardware Maintenance Manual
1
Microprocessor 12 V power
connector
2
Microprocessor fan connector
3
Microprocessor
4
Memory slots (6)
5
24-pin system power connector
6
Hard disk drive fan assembly
connector
7
Diskette drive connector
8
Card reader connector
9
Front USB connector
10
SATA connectors (5)
11
Adapter card fan connector
12
SAS (Serial Attached SCSI) LED
connector
13
Battery
14
Clear CMOS/Recovery jumper
15
Auxiliary LED connector
16
Front panel connector
17
Cover presence switch connector
18
Thermal sensor connector
19
PS/2 connector
20
Front audio connector
21
Internal speaker connector
22
PCI adapter card slot
23
PCI Express x1 adapter card slot
24
PCI Express x16 graphics adapter card
slot
25
PCI Express x4 adapter card slot
26
PCI Express x16 graphics adapter card
slot
27
Second COM port connector
28
Rear fan assembly connector
29
Auxiliary 12 V power connector