System Board; M70S Gen 3 - Lenovo ThinkCentre M80s Gen 3 Maintenance Manual

System board

M70s Gen 3

1
PS/2 keyboard and mouse connector
3
Microprocessor socket
5
Memory slot (DIMM1)
7
Memory slot (DIMM3)
9
Power button connector
11
Auxiliary fan connector
13
10-pin power connector
15
Clear CMOS (Complementary Metal Oxide
Semiconductor)/Recovery jumper
17
M.2 solid-state drive slot
19
Front USB connector
21
Parallel connector
23
Serial (COM2) connector
25
PCI Express x1 card slot
27
E-lock connector
29
Cover presence switch connector (intrusion switch
connector)
52
M70s Gen 3 / M80s Gen 3 / M90s Gen 3 Hardware Maintenance Manual
2
8-pin power connector
4
Microprocessor fan connector
6
Memory slot (DIMM2)
8
Memory slot (DIMM4)
10
Internal speaker connector
12
Illuminated red dot connector
14
SATA power connectors
16
SATA 3.0 connectors
18
Thermal sensor connector
20
M.2 Wi-Fi card slot
22
Serial (COM1) connector
24
PCI Express x1 card slot
26
PCI Express x16 card slot
28
System fan connector
30
Coin-cell battery