Руководство Пользователя для Lenovo m55p
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
factory-installed
or
that
you
can
install
later.
The
following
illustration
shows
the
locations
of
parts
on
the
system
board.
1
Diskette
drive
connector
13
PCI
Express
(x16)
graphics
adapter
connector
(some
models)
2
Speaker
connector
14
PCI
Express
(x1)
adapter
connector
3
Memory
connector
4
15
PCI
adapter
connector
1
4
Memory
connector
3
16
PCI
adapter
connector
2
5
Memory
connector
2
17
System
fan
connector
(not
used)
6
Memory
connector
1
18
Battery
7
Front
panel
I/O
connector
19
Temperature
sensor
connector
8
Serial
connector
(COM2)
20
Microprocessor
fan
connector
9
Serial
ATA
IDE
connectors
(5)
21
Microprocessor
10
Clear
CMOS/Recovery
jumper
22
Microprocessor
heat
sink
11
Cover
presence
switch
(tamper
sw)
connector
23
12v
power
connector
12
Power
supply
connector
Installing
memory
Your
computer
has
four
connectors
for
installing
dual
inline
memory
modules
(DIMMs).
When
installing
DDR2
type
memory
modules,
the
following
rules
apply:
Chapter
3.
Installing
options
23