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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
that
are
IBM-installed
or
that
you
can
install
later.
The
following
illustration
shows
the
locations
of
parts
on
the
system
board.
1
Fan
connectors
(2)
8
Promise
of
value
(POV)
daughter
card
(some
models)
2
Memory
DIMM
connectors
(2)
9
Diskette
drive
connector
3
SATA
1
IDE
and
SATA
2
IDE
hard
disk
drive
connectors
(2)
10
Power
button
and
front
LED
assembly
connector
4
PCI
riser
connector
11
Power
supply
connector
5
CMOS
Battery
12
PATA
Primary
IDE
connector
(hard
disk
drive
and
CD-ROM
drive)
6
Clear
CMOS/BIOS
recovery
jumper
13
Power
supply
connector
7
Internal
speaker
connector
14
Microprocessor
15
CD
audio
connector
Chapter
2.
Installing
options
13