Lenovo 81413NU User Manual - Page 28

Installing, memory

Page 28 highlights

The following illustration shows the locations of parts on the system board. 1 12v power connector 2 Diskette drive connector 3 Speaker connector 4 Memory connector 4 5 Memory connector 3 6 Memory connector 2 7 Memory connector 1 8 Clear CMOS/Recovery jumper 9 Front panel connector 10 PATA IDE connector 11 SATA 4 connector 12 SATA 3 connector 13 SATA 2 connector 14 SATA 1 connector 15 Cover presence switch connector 16 Power supply connector 17 PCI Express (x16) graphics adapter connector 18 PCI Express (x1) adapter connector 19 PCI adapter connector 2 20 PCI adapter connector 1 21 Battery 22 Microprocessor 23 Microprocessor fan connector 24 Microprocessor heat sink Installing memory Your computer has four connectors for installing dual inline memory modules (DIMMs) that provide up to a maximum of 4.0 GB of system memory. Note: Addressable memory might be less than total supported memory. System memory is divided into two channels (channel A and B). Memory connectors 1 and 2 are channel A, and memory connectors 3 and 4 are channel B. If memory modules are present in both channels, your computer operates in dual channel mode. Your computer has either double data rate (DDR) or double data rate 2 (DDR2) memory. The type of memory required depends on the system board that is installed in your computer. 12 User Guide

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The
following
illustration
shows
the
locations
of
parts
on
the
system
board.
±1²
12v
power
connector
±13²
SATA
2
connector
±2²
Diskette
drive
connector
±14²
SATA
1
connector
±3²
Speaker
connector
±15²
Cover
presence
switch
connector
±4²
Memory
connector
4
±16²
Power
supply
connector
±5²
Memory
connector
3
±17²
PCI
Express
(x16)
graphics
adapter
connector
±6²
Memory
connector
2
±18²
PCI
Express
(x1)
adapter
connector
±7²
Memory
connector
1
±19²
PCI
adapter
connector
2
±8²
Clear
CMOS/Recovery
jumper
±20²
PCI
adapter
connector
1
±9²
Front
panel
connector
±21²
Battery
±10²
PATA
IDE
connector
±22²
Microprocessor
±11²
SATA
4
connector
±23²
Microprocessor
fan
connector
±12²
SATA
3
connector
±24²
Microprocessor
heat
sink
Installing
memory
Your
computer
has
four
connectors
for
installing
dual
inline
memory
modules
(DIMMs)
that
provide
up
to
a
maximum
of
4.0
GB
of
system
memory.
Note:
Addressable
memory
might
be
less
than
total
supported
memory.
System
memory
is
divided
into
two
channels
(channel
A
and
B).
Memory
connectors
1
and
2
are
channel
A,
and
memory
connectors
3
and
4
are
channel
B.
If
memory
modules
are
present
in
both
channels,
your
computer
operates
in
dual
channel
mode.
Your
computer
has
either
double
data
rate
(DDR)
or
double
data
rate
2
(DDR2)
memory.
The
type
of
memory
required
depends
on
the
system
board
that
is
installed
in
your
computer.
12
User
Guide