HP 421 Notebook-PC User Manual
Page 154

decreasing screen brightness
decreasing speaker volume
description 30
displaying system information
increasing screen brightness
increasing speaker volume 35
initiating QuickLock 34
initiating Sleep 34
muting speaker sound 34
opening Help and Support 33
switching screen image 33
using 32
volume mute 40
HP Client Configuration
HP Client Manager for Altiris 135
HP QuickLook 125
HP SpareKey enrollment 123
HP System Software Manager
hubs 81
I
icons
Connection Manager 15
network status 15, 23
wireless 15
image, computer 134
Intel HT Technology 125
interference, minimizing 24
internal display switch,
identifying 5
Internet connection setup 18
J
jacks
audio-in (microphone) 8, 39
audio-out (headphone) 8, 39
RJ-11 (modem) 8
RJ-45 (network) 9
K
keyboard hotkeys, identifying 30
keyboard, cleaning 139
keypad, embedded
enabling and disabling 36
switching key functions 36
using 36
keypad, external
keys
embedded keypad 6, 7
esc 6, 7
fn 6, 7
function 6, 7
Windows applications 6, 7
Windows logo 6, 7
wireless 6, 7
L
labels
Bluetooth 14
Microsoft Certificate of
Authenticity 14
modem approval 14
regulatory 14
service tag 13
wireless certification 14
WLAN 14
language, changing in Computer
Setup 123
latches, battery release 10
legacy support, USB 120, 124
lights
battery 9
caps lock 3
power 4
wireless 4
local area network (LAN)
cable required 29
connecting cable 29
logical drive designations 131
M
maintenance
Disk Cleanup 75
Disk Defragmenter 75
media controls, hotkeys 35
memory module
adding 90
inserting 95
removing 91, 95
replacing 90, 94
upgrading primary 94
memory module compartment,
identifying 11
memory, replacing memory
modules 90, 94
microphone (audio-in) jack 8
microphone, identifying 12, 39
Microsoft Certificate of Authenticity
label 14
minimizing interference 24
modem approval label 14
modem cable
connecting 25
country-specific cable
adapter 26
noise suppression circuitry 25
modem software
setting/adding location 26
travel connection problems 28
monitor port, external 9
monitor, connecting 44
mouse, external
connecting 30
setting preferences 30
Multi Core CPU 125
MultiBoot Express 128, 133
multimedia components,
identifying 38
multimedia software 41
mute hotkey 40
N
network cable
connecting 29
noise suppression circuitry 29
network key 23
network security codes
Network Service Boot 130
network status icon 15, 23
NIC boot device 128, 130
noise suppression circuitry
modem cable 25
network cable 29
num lock, external keypad 37
numeric keypad 6, 7
142 Index