Identifying parts on the system board, Identifying, Parts – Lenovo ThinkCentre A61 User Manual
Page 15: System, Board, Locations
Identifying
parts
on
the
system
board
The
system
board
(sometimes
called
the
planar
or
motherboard)
is
the
main
circuit
board
in
your
computer.
It
provides
basic
computer
functions
and
supports
a
variety
of
devices.
shows
the
locations
of
parts
on
the
system
board
for
some
computer
models.
1
Microprocessor
fan
connector
13
Front
USB
connectors
(2)
2
Microprocessor
and
heat
sink
14
Battery
3
Memory
connector
1
15
Clear
CMOS/Recovery
jumper
4
Memory
connector
2
16
Serial
(COM)
connector
5
Memory
connector
3
17
PCI
adapter
connectors
6
Memory
connector
4
18
Mono
(speaker)
connector
7
Cover
presence
switch
connector
19
Front
audio
connector
8
Diskette
drive
connector
20
CD-IN
connector
9
IDE
connector
1
21
PCI
Express
x16
graphics
adapter
connector
10
Power
connector
22
PCI
Express
x1
adapter
connector
11
SATA
IDE
connectors
(4)
23
System
fan
connector
12
Front
panel
connector
24
12
V
power
connector
Figure
4.
System
board
parts
locations
Chapter
2.
Overview
7