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
SolutionCause
1. Check the front panel to see if an amber light indicates the system has
been muted. Tap the touch-sensitive button to toggle the mute on and
o.
2. Check the Computer Setup settings to be sure that the internal
system speaker is not muted. This setting does not aect the external
speakers.
3. Be sure that the external speakers are properly connected and powered
on and that the speakers' volume control is set correctly.
4. Use the system volume control available in the operating system to be
sure that the speakers are not muted or to increase the volume.
System volume might be set low or muted.
Cannot remove computer cover or access panel
Use this information to troubleshoot the computer.
SolutionCause
Unlock the Smart Cover Lock using Computer Setup.
In case of forgotten password, power loss, or computer malfunction, you
mus
t manually disable the Smart Cover lock. A key to unlock the Smart Cover
Lock is not available from HP. Keys are typically available from a hardware
store.
Smart Cover Lock, featured on some computers,
is locked.
Poor performance
Use this information to troubleshoot the computer.
SolutionCause
1. Be sure that airow
to the computer is not blocked. Leave a 10.2 cm
(4 inch) clearance on all vented sides of the computer to permit the
required airow.
2. Be sure that fans are connected and working properly (some fans only
operate when needed).
3. Be sure that the processor heat sink is installed properly.
Processor is too hot.
Transfer data from the hard drive to create more space on the hard drive.Hard drive is full.
Add more memory.Low on memory.
Defragment hard drive.Hard drive fragmented.
Restart the computer.Program previously accessed did not release
r
eserved memory back to the system.
Run virus protection program.Virus resident on the hard drive.
1. Close unnecessary applications to free memory.
2. Add more memory.
3. Some applications run in the background and can be closed by right
clicking their corresponding icons in the task tray.
Too many applications running.
54 Chapter 5 Troubleshooting without diagnostics