HP dx2420 - Microtower PC Service & Reference Manual page 96

optical drive
installing 49
removing 48
overheating, prevention 22
P
parallel interface pin
assignments 69
PCI card 40, 42
PCI Express card 40, 42
PCI Express Mini Card pin
assignments 75
PCI Express pin assignments 73
power cord set requirements
country specific 77
power supply
fan 24
removal and replacement 63
power switch/LED assembly
removal and replacement 59
processor
removal and replacement 61
product ID location 27
R
rear chassis fan
removal and replacement 62
removal and replacement
access panel 32
battery 65
front bezel 33
front USB panel 58
heat sink 60
memory 37
power supply 63
power switch/LED
assembly 59
processor 61
rear chassis fan 62
system board 64
removing
bezel blanks 34
diskette drive 50
expansion slot cover 41
hard drive 53
media card reader 50
optical drive 48
PCI card 42
PCI Express card 42
90 Index
S
safety precautions
cleaning 23
SATA
connectors on system
board 16
data cable pinouts 17
hard drive characteristics 16
pin assignments 72
power cable pinouts 17
screws, correct size 25
security
cable lock 29
HP Business PC Security
Lock 30
padlock 29
serial interface pin
assignments 70
serial number location 27
service considerations 24
software
backing up 14
servicing computer 24
spare part number
tamper-resistent wrench 25
Torx T-15 screwdriver 24
specifications
computer 87
memory 37
static electricity 20
system board
removal and replacement 64
SATA connectors 16
system board connections 36
T
tamper-proof screws
tool 25
temperature control 22
tools, servicing 24
Torx T15 screwdriver 24
U
USB pin assignments 70
V
ventilation, proper 22