A

audible codes A–5audio output D–1audio problems 2–24

B

battery, replacing 2–6beep codes A–5blank screen 2–19

C

CD-ROM or DVD problems 2–40

CMOS

backing up B–6

clearing and resetting B–3switch B–4

Configuration Record Utility installing 1–10overview 1–9

running 1–10Customer Support 2–2,2–47

D

date and time display 2–6Diagnostics for Windows

detecting 1–2installing 1–3menu bar 1–5overview 1–1running tests 1–6tool bar 1–5

diskette problems 2–13Drive Key problems 2–42

E

error codes A–1

Index

F

flashing LEDs A–5

G

general problems 2–6

H

hard drive problems 2–16

hardware installation problems 2–30helpful hints 2–4

I

Internet access problems 2–43

K

keyboard

solving problems 2–28testing 2–4

L

LEDs

blinking power A–5blinking PS/2 keyboard A–5

M

memory

solving problems 2–37monitor

blank screen 2–19blurry video 2–21,2–22checking connections 2–5dim characters 2–21

monitor problems 2–19mouse problems 2–28

N

network problems 2–33

Troubleshooting Guide

www.hp.com

Index–1