Lenovo 8213 ユーザーズマニュアル
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
installed
or
that
you
can
install
later.
The
following
illustration
shows
the
locations
of
parts
on
the
system
board.
1
Internal
speaker
connector
12
Fan
connector
2
2
Serial
connector
2
(COM2)
13
Memory
connector
1
3
PCI
Express
(x16)
graphics
adapter
connector
14
Memory
connector
2
4
Power
supply
connector
15
Memory
connector
3
5
PATA
primary
IDE
connector
16
Memory
connector
4
6
Diskette
drive
connector
17
Battery
7
12v
power
connector
18
PCI
riser
connector
8
Microprocessor
heat
sink
19
Chassis
intrusion
switch
9
Fan
connector
1
20
SATA
IDE
connectors
(2)
10
Front
panel
connector
21
Clear
CMOS/Recovery
jumper
11
Microprocessor
Chapter
1.
Installing
options
13