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.
The
following
illustration
shows
the
locations
of
parts
on
the
system
board.
1
Speaker
connector
12
PCI
adapter
connector
2
Memory
connector
4
13
PCI
adapter
connector
3
Memory
connector
3
14
Serial
connector
(COM
2)
4
Memory
connector
2
15
PCI
Express
x1
adapter
connector
5
Memory
connector
1
16
Clear
CMOS/Recovery
jumper
6
Front
Panel
connector
17
Battery
7
Power
supply
connector
18
Microprocessor
fan
connector
8
PATA
IDE
connector
19
Microprocessor
9
System
fan
connector
20
Microprocessor
heat
sink
10
SATA
IDE
connectors
(4)
21
12V
power
connector
11
PCI
Express
x16
adapter
connector
22
Diskette
drive
connector
4
Hardware
Replacement
Guide
