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
Table 11-1 Troubleshooting steps for nonvolatile memory usage (continued)
Nonvolatile
memory type
Amount (Size) Does this
memory
store
customer
data?
Does this
memory
retain data
when
power is
removed?
What is the
purpose of
this memory?
How is data entered into
this memory?
How is this memory
write-protected?
customer
accessible)
varies by memory
vendor.
System BIOS 16 MB Yes Yes Stores system
BIOS code and
computer
conguration
data.
System BIOS code is
programmed at the
factory. Code is updated
when the system BIOS
is updated. Conguration
data and settings are
entered using the
Computer Setup (BIOS) or
a custom utility.
NOTE: Writing data
to this ROM in an
inappropriate manner
can render the
computer
nonfunctional.
A utility must be
used for writing
data to this memory
and is available on
the HP website; go
to http://www.hp.com/
support. Select Find
your product, and then
follow the on-screen
instructions.
Intel
Management
Engine Firmware
(present only in
select Elite or Z
models. For
more
information, go
to
http://www.hp.com/support. Select
Identify your
product for
manuals and
specic product
information, and
then follow the
on-screen
instructions.)
1.5 MB or 7
MB
Yes Yes Stores
Management
Engine Code,
Settings,
Provisioning
Data and iAMT
third-party
data store.
Management Engine Code
is programmed at the
factory. Code is updated
via Intel secure rmware
update utility. Unique
Provisioning Data can be
entered at the factory
or by an administrator
using the Management
Engine (MEBx) setup
utility. The third-party
data store contents can
be populated by a remote
management console or
local applications that
have been registered by
an administrator to have
access to the space.
The Intel chipset is
congured to enforce
hardware protection to
block all direct read
write access to this
area. An Intel utility
must be used for
updating the rmware.
Only rmware updates
digitally signed by Intel
can be applied using
this utility.
Bluetooth ash
(select products
only)
2 megabits No Yes Stores
Bluetooth
conguration
and rmware.
Bluetooth ash is
programmed at the
factory. Tools for writing
data to this memory are
not publicly available but
can be obtained from the
silicon vendor.
A utility must be used
for writing data to this
memory and is made
available through
newer versions of
the driver whenever
the ash requires an
upgrade.
802.11 WLAN
EEPR
OM
4 kilobits to 8
kilobits
No Yes Stores
conguration
and
calibration
data.
802.11 WLAN EEPROM
is programmed at the
factory. Tools for writing
data to this memory are
not made public.
A utility must be used
for writing data to
this memory and is
typically not made
available to the public
unless a rmware
upgrade is necessary
to address a unique
issue.
106 Chapter 11 Statement of memory volatility