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Reverse this procedure to reassemble and install the display assembly.
Power connector cable
DescriptionSpare part number
Power connector cable (includes tape) 796086-001
Before removing the power connector cable, follow these steps:
1.Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.Disconnect all external devices connected to the computer.
3.Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.Remove the keyboard/top cover (see
Keyboard/top cover on page 23).
5.Disconnect the battery cable from the system board (see
Battery on page 33).
6.Remove the display assembly (see
Display assembly – non-touchscreen models on page 40) or Display
assembly – touchscreen models on page 46.
Remove the power connector cable:
1.Disconnect the power connector cable (1) from the system board.
2.Release the power connector (2) from the retention clips built into the bottom cover.
3.Remove the power connector cable (3).
Reverse this procedure to install the power connector cable.
50 Chapter 5 Removal and replacement procedures forAuthorized Service Provider parts
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6 Using Setup Utility (BIOS) and HP PC
Hardware Diagnostics (UEFI)
Setup Utility, or Basic Input/Output System (BIOS), controls communication between all the input and output
devices on the system (such as disk drives, display, keyboard, mouse, and printer). Setup Utility (BIOS)
includes settings for the types of devices installed, the startup sequence of the computer, and the amount of
system and extended memory.
Starting Setup Utility (BIOS)
To start Setup Utility (BIOS), turn on or restart the computer, quickly press esc, and then press f10.
NOTE:Use extreme care when making changes in Setup Utility (BIOS). Errors can prevent the computer
from operating properly.
Updating the BIOS
Updated versions of the BIOS may be available on the HP website.
Most BIOS updates on the HP website are packaged in compressed files called SoftPaqs.
Some download packages contain a file named Readme.txt, which contains information regarding installing
and troubleshooting the file.
Determining the BIOS version
To determine whether available BIOS updates contain later BIOS versions than those currently installed on
the computer, you need to know the version of the system BIOS currently installed.
BIOS version information (also known as ROM date and System BIOS) can be revealed by pressing fn+esc (if
you are already in Windows) or by using Setup Utility (BIOS).
1.Start Setup Utility (BIOS) (see
Starting Setup Utility (BIOS) on page 51).
2.Use the arrow keys to select Main.
3.To exit Setup Utility (BIOS) without saving your changes, use the arrow keys to select Exit, select Exit
Discarding Changes, and then press enter.
Starting Setup Utility (BIOS) 51
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Downloading a BIOS update
CAUTION:To reduce the risk of damage to the computer or an unsuccessful installation, download and
install a BIOS update only when the computer is connected to reliable external power using the AC adapter.
Do not download or install a BIOS update while the computer is running on battery power, docked in an
optional docking device, or connected to an optional power source. During the download and installation,
follow these instructions:
Do not disconnect power from the computer by unplugging the power cord from the AC outlet.
Do not shut down the computer or initiate Sleep.
Do not insert, remove, connect, or disconnect any device, cable, or cord.
1.From the Start screen, type hp support assistant, and then select the HP Support Assistant
2.Click Updates and tune-ups, and then click Check for HP updates now.
3.Follow the on-screen instructions.
4.At the download area, follow these steps:
a.Identify the most recent BIOS update and compare it to the BIOS version currently installed on
your computer. If the update is more recent than your BIOS, make a note of the date, name, or
other identifier. You may need this information to locate the update later, after it has been
downloaded to your hard drive.
b.Follow the on-screen instructions to download your selection to the hard drive.
If the update is more recent than your BIOS, make a note of the path to the location on your hard
drive where the BIOS update is downloaded. You will need to access this path when you are ready
to install the update.
NOTE:If you connect your computer to a network, consult the network administrator before installing
any software updates, especially system BIOS updates.
BIOS installation procedures vary. Follow any instructions that are revealed on the screen after the download
is complete. If no instructions are revealed, follow these steps:
1.From the Start screen, type file, and then select File Explorer.
2.Click your hard drive designation. The hard drive designation is typically Local Disk (C:).
3.Using the hard drive path you recorded earlier, open the folder on your hard drive that contains the
4.Double-click the file that has an .exe extension (for example, filename.exe). The BIOS
5.Complete the installation by following the on-screen instructions.
NOTE:After a message on the screen reports a successful installation, you can delete the downloaded file
from your hard drive.
52 Chapter 6 Using Setup Utility (BIOS) and HP PC Hardware Diagnostics (UEFI)
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Using HP PC Hardware Diagnostics (UEFI)
HP PC Hardware Diagnostics is a Unified Extensible Firmware Interface (UEFI) that allows you to run
diagnostic tests to determine whether the computer hardware is functioning properly. The tool runs outside
the operating system so that it can isolate hardware failures from issues that are caused by the operating
system or other software components.
To start HP PC Hardware Diagnostics UEFI:
1.Turn on or restart the computer, quickly press esc, and then press f2.
The BIOS searches three places for the diagnostic tools, in the following order:
a.Connected USB drive
NOTE:To download the HP PC Hardware Diagnostics (UEFI) tool to a USB drive, see
HP PC Hardware Diagnostics (UEFI) to a USB device on page 53.
2.When the diagnostic tool opens, use the keyboard arrow keys to select the type of diagnostic test you
want to run, and then follow the on-screen instructions.
NOTE:If you need to stop a diagnostic test, press esc.
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device
NOTE:Instructions for downloading HP PC Hardware Diagnostics (UEFI) are provided in English only.
There are two options to download HP PC Hardware Diagnostics to a USB device:
Option 1: HP PC Diagnostics homepage— Provides access to the latest UEFI version
2.Click the Download link, and then select Run.
Option 2: Support and Drivers page—Provides downloads for a specific product for earlier and later
2.Point to Support, located at the top of the page, and then click Download Drivers.
3.In the text box, enter the product name, and then click Go.
– or –
Click Find Now to let HP automatically detect your product.
4.Select your computer model, and then select your operating system.
5.In the Diagnostic section, click HP UEFI Support Environment.
– or –
Click Download, and then select Run.
Using HP PC Hardware Diagnostics (UEFI) 53
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Width33.32 cm13.11 in
Depth22.44 cm8.84 in
Height (front to rear)0.69 to 2.14 cm0.27 to 0.84 in
Weight (equipped with hard drive)1.70 kg3.75 lbs
Weight (equipped with solid-state drive)1.55 kg3.42 lbs
Operating voltage and current 19.5 V dc @ 2.31 A – 45 W
19.5 V dc @ 3.33 A – 65 W (select models only)
Operating5°C to 35°C41°F to 95°F
Nonoperating-20°C to 60°C-4°F to 140°F
Relative humidity (noncondensing)
Operating 10% to 90%
Nonoperating 5% to 95%
Maximum altitude (unpressurized)
Operating-15 m to 3,048 m-50 ft to 10,000 ft
Nonoperating-15 m to 12,192 m-50 ft to 40,000 ft
NOTE:Applicable product safety standards specify thermal limits for plastic surfaces. The device operates well within this range of
54 Chapter 7 Specifications