Disassembly
Removing the System Memory (RAM) 2 - 9
2.Disassembly
Removing the System Memory (RAM)
The computer has two memory sockets for 204 pin Small Outline Dual In-line Memory Modules (SO-DIMM) supporting
DDR3L up to 1600 MHz. The main memory can be expanded up to 16GB. The total memory size is automatically de-
tected by the POST routine once you turn on your computer.
Memory Upgrade Process
1.
Turn
off
the computer, turn it over, remove the battery (
2.
The RAM-2 modules will be visible at point
on the mainboard (
)
.
3.
Gently pull the two release latches (
&
) on the sides of the memory socket in the direction indicated by the
arrows (
).
The RAM module
will pop-up
(
)
, and you can then remove it
.
4.
Pull the latches to release the second module if necessary.
5.
Insert a new module holding it at about a 30° angle and fit the connectors firmly into the memory slot.
6.
The module will only fit one way as defined by its pin alignment. Make sure the module is seated as far into the slot
as it will go. DO NOT FORCE IT; it should fit without much pressure.
7.
Press the module in and down towards the mainboard until the slot levers click into place to secure the module.
8.
Replace the bottom cover and the screws
)
.
9.
Restart the computer to allow the BIOS to register the new memory configuration as it starts up.
1
2
3
4
b.
c.
2
3
2
3
1
a.
4
4. RAM Module
Figure 5
RAM Module
Removal
a. The RAM modules
will be visible at point
on the main-
board.
b. Pull the release lat-
ches.
c. Remove the module.
Contact Warning
Be careful not to touch
the metal pins on the
module’s connecting
edge. Even the clean-
est hands have oils
which can attract parti-
cles, and degrade the
module’s performance.
1
Summary of Contents for N855HC
Page 1: ...N855HC ...
Page 2: ......
Page 3: ...Preface I Preface Notebook Computer N855HC Service Manual ...
Page 24: ...Introduction 1 12 1 Introduction ...
Page 43: ...Top A 3 A Part Lists Top Figure A 1 Top ...
Page 44: ...A 4 Bottom A Part Lists Bottom Figure A 2 Bottom ...
Page 45: ...Main Board A 5 A Part Lists Main Board Figure A 3 Main Board ...
Page 46: ...A 6 HDD A Part Lists HDD Figure A 4 HDD ...
Page 47: ...LCD A 7 A Part Lists LCD Figure A 5 LCD ...
Page 48: ...A 8 A Part Lists ...
Page 108: ...Schematic Diagrams B 60 B Schematic Diagrams ...
