HP Z4 G4 Maintenance And Service Manual page 111

L
lights
hard drive 2, 3
M
media card reader
problems 47
memory
nonvolatile 89
problems 60
volatile 89
memory card reader, identifying 2,
3
memory fan assembly
removal and replacement 20
microphone (audio-in) jack 4, 5
minimized image recovery 84
minimized image, creating 83
monitor problems 48
mouse
problems 55
N
network problems 57
nonvolatile memory 89
numeric error codes 66
O
operating guidelines 11
original system recovery 83
overheating, prevention 11
P
password
clearing 73
power-on 73
setup 73
passwords 74
ports
USB SuperSpeed 2, 3, 4, 5
USB SuperSpeed port with HP
Sleep and Charge 2, 3
USB Type-C SuperSpeed Plus 2
POST error messages 65
power button, identifying 2, 3, 4, 5
power connector, identifying 4, 5
power problems 44
power supply
operating voltage range 96
removal and replacement 15, 26
Power-On password 74
power-on password 73
printer problems 54
problems
audio 52
Computer Setup 40
F10 Setup 40
flash drive 61
front panel 62
general 40
hard drive 45
hardware installation 56
Internet access 63
keyboard 55
Media Card Reader 47
memory 60
monitor 48
mouse 55
network 57
power 44
printer 54
software 64
processor
removal and replacement 24
R
rear fan
removal and replacement 22
recovery 81
discs 82, 84
HP Recovery Manager 83
HP Recovery partition 83
media 84
starting 84
supported discs 82
system 83
USB flash drive 84
using HP Recovery media 82
recovery media
creating using HP Cloud Recovery
Download Tool 83
creating using HP Recovery
Manager 82
creating using Windows tools 81
discs 82
HP Recovery partition 81
USB flash drive 82
using 82
recovery partition, removing 85
Remote HP PC Hardware Diagnostics
UEFI settings
customizing 79
using 79
removal and replacement
access panel 17
CPU cooler 23
drive cage 19
FIOUI module 18
front bezel 16
front fan/PCIe and card guide
assembly 21
memory fan assembly 20
power supply 15, 26
processor 24
rear fan 22
storage device 19
system board 25
removing
battery 86
removing personal data from volatile
system memory 89
resetting
CMOS 73
password jumper 73
restoring 81
S
safety and comfort 38
safety precautions
cleaning 12
SATA
connectors on system board 97
hard drive characteristics 97
screws, correct size 13
security cable slot, identifying 4, 5
service considerations 13
Setup password 74
setup password 73
slots
security cable 4, 5
software
problems 64
servicing computer 13
specifications
computer 95
static electricity 9
storage device
removal and replacement 19
supported discs, recovery 82
Index 103