Maintenance and Service Guide
Table Of Contents
- Computer features
- Illustrated parts catalog
- Routine care, SATA drive guidelines, and disassembly preparation
- Removal and replacement procedures
- Preparation for disassembly
- Access panel
- Optical drive
- Hard drive
- Front bezel
- Removing the slim bezel blank
- Memory modules (DIMMs)
- Expansion card
- WLAN module
- Serial port
- Hood lock
- Hood sensor
- Fan
- Option board
- Heat sink
- Processor
- Drive cage
- Solid-state drive
- Battery
- USB board
- Card reader
- Speaker
- Power supply
- System board
- Wireless antennas and cables
- Troubleshooting without diagnostics
- Before you call for technical support
- Helpful hints
- Solving general problems
- Cannot access the Computer Setup (F10) Utility when booting the computer
- Computer appears locked up and will not turn off when the power button is pressed
- Computer will not respond to keyboard or mouse
- Computer date and time display is incorrect
- There is no sound or sound volume is too low
- Cannot remove computer cover or access panel
- Poor performance
- Computer powered off automatically and the power light blinks red four times and then white two times
- System does not turn on and the lights on the front of the computer are not blinking
- Solving power problems
- Power supply shuts down intermittently
- Computer turned off automatically, power light blinks red two times followed by a two-second pause, and the computer beeps two times (Beeps stop after fifth iteration but lights continue blinking)
- Power light blinks red four times followed by a two-second pause and the computer beeps four times (Beeps stop after fifth iteration but lights continue blinking)
- Solving hard drive problems
- Solving audio problems
- Solving printer problems
- Solving keyboard and mouse problems
- Solving hardware installation problems
- Solving network problems
- Network driver does not detect network controller
- Network status link light never blinks
- Diagnostics reports a failure
- Diagnostics passes, but the computer does not communicate with the network
- Network controller stopped working when an expansion board was added to the computer
- Network controller stops working without apparent cause
- Cannot connect to network server when attempting remote system installation
- System setup utility reports unprogrammed EEPROM
- Solving memory problems
- System will not boot or does not function properly after installing additional memory modules
- Out of memory error
- Memory count during POST is wrong
- Insufficient memory error during operation.
- Power light blinks red five times followed by a two-second pause and the computer beeps five times (Beeps stop after fifth iteration but lights continue blinking)
- Solving USB flash drive problems
- Solving internet access problems
- Solving software problems
- Computer Setup (F10) Utility
- POST error messages
- Password security and resetting CMOS
- Using HP PC Hardware Diagnostics
- Using HP PC Hardware Diagnostics Windows (select products only)
- Using HP PC Hardware Diagnostics UEFI
- Using Remote HP PC Hardware Diagnostics UEFI settings (select products only)
- Backing up, restoring, and recovering
- Statement of memory volatility
- Power cord set requirements
- Specifications
- Index
If you use an incorrect screw during the reassembly process, it can damage the unit. HP strongly recommends
that you keep all screws that you remove during disassembly with the removed part and then return them to
their proper locations.
IMPORTANT: As you remove each subassembly from the computer, place it away from the work area to
prevent damage.
Cables and connectors
Use this information properly handle cables.
Apply only the tension required to seat or unseat the cables during insertion or removal from the connector.
Handl
e cables by the connector whenever possible. In all cases, avoid bending or twisting the cables, and
route the cables so that they cannot be caught or snagged by parts being removed or replaced.
IMPORTANT: When servicing this computer, be sure to place cables in their proper location during the
r
eassembly process. Improper cable placement can damage the computer.
Hard drives
Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This advice
ap
plies to failed drives as well as replacement spares.
● If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective packaging
and label the package “Fragile: Handle With Care.”
● Do not remove hard drives from the shipping package for storage. Keep hard drives in their protective
packaging until they are actually mounted in the computer.
● Avoid dropping drives from any height onto any surface.
● If you are inserting or removing a hard drive, turn o
the computer. Do not remove a hard drive while the
computer is on or in standby mode.
● Before handling a drive, ensure that you are discharged of static electricity. While handling a drive, avoid
touching the connector.
● Do not use excessive force when inserting a drive.
● Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic elds such
as monit
ors or speakers.
Lithium coin cell battery
The battery that comes with the computer provides power to the real-time clock and has a minimum lifetime
o
f approximately three years.
See the appropriate removal and replacement chapter for the chassis that you are working on for instructions
on the replacement procedures.
WARNING! This computer contains a lithium battery. There is a risk of re and chemical burn if the battery
is h
andled improperly. Do not disassemble, crush, puncture, short external contacts, dispose of in water or
re, or expose it to temperatures higher than 140°F (60°C). Do not attempt to recharge the battery.
NOTE: Do not dispose of batteries, battery packs, and accumulators with general household waste. To
f
orward them to recycling centers or proper disposal, use the public collection system or return them to HP,
their authorized partners, or their agents.
18 Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation