If a PC suddenly fails to boot properly, you should
perform a hard reset
as the first procedure.
-
Disconnect
all peripheral devices and remove all USB devices and media cards. You want to test the computer not the accessories!
-
Disconnect
the AC power adapter, remove the battery, and then press and hold the power button for at least 15 seconds
.
-
Reconnect
the AC power adapter (but do not connect the battery), Press
the Power button, Look for
glowing LEDs near caps lock
and num lock
keys, and Listen for
sounds of a disk drive and fan turning.
If there is a problem with the LCD
display's back light or a corrupted graphics driver, the display may
appear blank but the notebook may be displaying information. Attach an
external monitor to test the display.
If
the image displays on the external monitor, there may be a graphics
driver conflict. To resolve this, turn on the computer and press
f8
key, then select
Enable low-resolution video
. If the image displays on the LCD display in low resolution, you can
download and install the latest drivers for your specific graphics
driver.
If there is an image on the external monitor but the notebook display remains black, contact HP for technical assistance.
Even though users are instructed to disconnect all peripheral devices from the notebook when doing a hard reset, some devices are often overlooked.
Double-check that all devices are disconnected including: external
keyboard and mouse (wired or wireless), USB connected external drives
and devices, thumb drives and flash drives, network storage devices, PC
card, SD memory cards, express card, eSata connections, firewire or
similar devices, printer, scanner, camera, port replicator, or docking
station, any CD/DVD from the optical disc drive, and any media from the
multi-card reader.
If the computer can access part of the
memory, it may be possible to access the BIOS Setup Utility display and
perform a memory self test to identify other memory issues. If the
computer cannot boot to the BIOS Utility, try removing and reseating
the memory and the hard drive, and then repeat the following steps to
perform the memory self test.
-
Plug the AC adapter into the computer.
-
Turn off the computer and wait 5 seconds.
-
Press the Power
button to start the computer and repeatedly press the f10
key to enter the BIOS Setup menu.
-
In the BIOS Setup Utility, use the Right Arrow
or Left Arrow
keys to navigate through the menu selection to locate the Diagnostics
.
-
Use the Up Arrow
or Down Arrow
keys to select Memory Test
.
-
Press Enter
, and then Yes
to perform memory test.
-
After test completes, press f10
to Save and Exit
, and then press Enter
to Exit Saving Changes?
.
Many computer problems are related to soft
failures (or degraded performance) on the hard drive. The HP Hard
Drive Self Test will repair soft errors on the hard drive, but it will
not report the errors. After the test is complete, restart the computer
to see if test repaired the problem you may been experiencing.
Use the steps below to test the hard drive in a computer using the HP Hard Drive Self Test.
Plug the AC Adapter into the computer.
Turn off the computer and wait 5 seconds.
Press the
Power
button to start the computer and repeatedly press the
f10
key to enter the BIOS Setup Menu.
Use the
Left Arrow
or
Right Arrow
keys to navigate through the menu selection to locate the
Primary Hard Drive Self Test
option. Depending on your BIOS, this may be located below either
Diagnostics
or
Tools
.
Select
Primary Hard Drive Self Test
, and then press the
Enter
key to start the test.
Many computer problems are related to soft failures on the hard drive.
The comprehensive portion of the HP Hard Drive Self Test repairs soft
errors on the hard drive, but does not report the errors. After the
test completes, be sure to restart the computer to determine if the test
repaired any problems you are experiencing with your computer.
Plug the AC Adapter into the computer.
Turn off the computer and wait 5 seconds.
Press the
Power
button to start the computer and repeatedly press the
f10
key to enter the BIOS Setup menu.
Use the
Right Arrow
or
Left Arrow
keys to navigate through the menu selection to locate the
Primary Hard Drive Self Test
option. Depending on your BIOS, this may be located below either
Diagnostics
or
Tools
.
Select Primary Hard Drive Self Test
, and then press the Enter
key to start the test.
NOTE:
The exact wording of the option for your particular BIOS may be slightly different.
-
If
Windows does not start properly, reset the BIOS to the default
settings. Using the default settings, you should be able to boot into
Safe Mode and install the latest BIOS.
To reset the BIOS, press the power button to start the computer and repeatedly press the f10
to enter the BIOS setup, then press f9
key to Reset BIOS Default
. For more information, refer to the
HP Notebook PCs - Configuring the Boot Order in the System BIOS
support document.
-
If
it will not boot to the BIOS, you may need to remove and re-seat the
hard drive. Instructions may vary depending on the notebook model you
are using. For specific instructions on re-seating the hard drive in
the notebook, refer to the
HP Notebook PCs - Steps for Removing and Replacing the Hard Drive
support document.
-
After re-seating the hard drive,perform a hard drive reset.
×