HP 280 G4 Maintenance And Service Manual page 111

O
operating guidelines 11
optical drive
problems 67
removal 22
overheating, prevention 11
P
password
clearing 81
power-on 81
setup 81
passwords 83, 84
POST error messages 73
power cord set requirements
country specific 94
power problems 50
power supply
illustrated 5
operating voltage range 101
removal and replacement 16
Power-On password 83, 84
power-on password 81
printer problems 60
problems
audio 58
CD-ROM or DVD 67
Computer Setup 47
F10 Setup 47
flash drive 69
front panel 70
general 47
hard drive 51
hardware installation 62
Internet access 71
keyboard 61
Media Card Reader 53
memory 66
monitor 54
mouse 61
network 64
power 50
printer 60
software 71
processor
removal and replacement 34
R
rear panel components 3
recovery 90
discs 91
HP Recovery partition 91
media 91
USB flash drive 91
recovery media
creating using HP Cloud Recovery
Download Tool 90
creating using Windows tools 90
Remote HP PC Hardware Diagnostics
UEFI settings
customizing 88
using 88
removal and replacement
access panel 18
fan 32, 39
fan sink 33
front bezel 26
power supply 16
processor 34
RTC battery 31
rubber feet 17
solid-state drive module 28
system board 37
WLAN module 27
removing
battery 31
expansion card 19
hard drive 24
optical drive 22
removing personal data from volatile
system memory 95
resetting
CMOS 81
password jumper 81
restoring 90
RTC battery
removal and replacement 31
rubber feet
removal and replacement 17
S
safety and comfort 45
safety precautions
cleaning 11
SATA
connectors on system board 14
data cable pinouts 14
hard drive characteristics 14
screws, correct size 13
service considerations 12
Setup password 83, 84
setup password 81
software
problems 71
solid-state drive module
removal and replacement 28
specifications
computer 101
static electricity 8
system board
illustrated 5
removal and replacement 37
SATA connectors 14
system memory, removing personal
data from volatile 95
system restore point, creating 90
T
temperature control 11
tools, servicing 13
Torx T15 screwdriver 13
V
ventilation, proper 11
W
Windows
backup 90
recovery media 90
system restore point 90
Windows tools, using 90
WLAN module
removal and replacement 27
Index 103