HP ProBook 630 Maintenance and Service Guide - Page 75

During operation, If hardware has recently been installed

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3. Be sure that the AC adapter light is on. 4. Be sure that the AC adapter is connected when you update BIOS to avoid BIOS corruption. 5. Be sure that the computer is turned on, the rear power light is solid white (connected to an external power source), and the front power light is solid white (normal operation). 6. Remove all optical and flash drives from your system before turning it on. 7. Be sure that the boot option is set to a working operating system drive. 8. Be sure that externally connected monitors are turned on and their power lights are on. Not all monitors are equipped with lights to indicate their functionality. 9. Turn up the brightness and contrast controls of a display or external display device if the screen is dim. During operation The following steps provide simple, useful checks that you can perform when troubleshooting. 1. To wake the computer: a. Press the power button or any key on the keyboard. b. If the system remains in the Sleep (Windows), Suspend (Linux), or Hibernate state, shut down the system by pressing and holding the power button for at least 4 seconds. c. If the system does not shut down, unplug the power cord, wait a few seconds, and then plug it in again. Then press the power button again to restart the system. 2. Look for blinking lights on the computer. The blinking lights could be error codes that help diagnose the problem. 3. Check all cables for loose or incorrect connections (external devices, power cords, dock, and so on). 4. After installing a non-Plug and Play expansion board or other option, reconfigure the computer. For example, if you upgrade to a solid-state drive, you might have to reconfigure the boot order. 5. Be sure that all required device drivers have been installed. For example, if you have connected a printer, you must install a printer driver. 6. If there is a network connection issue, plug another computer with a different cable into the network connection. There might be a problem with the network plug or cable. 7. If hardware has recently been installed, remove it and determine whether the computer functions properly. 8. If software has recently been installed, uninstall it and determine whether the computer functions properly. 9. If the screen is blank, confirm the display choice by pressing Windows logo + p and set to screen only. Or plug an external monitor into a different video port on the computer, if one is available, and close the computer lid. 10. Verify that the latest version of BIOS, drivers, and software are installed. A new release might support new features or fix the problem. 11. Press the caps lock or num lk key. If the caps lock or num lk light toggles on or off, the keyboard is likely operating correctly. 12. Press the touchpad On/Off button light. If the light toggles on or off, the touchpad is likely operating correctly. Helpful Hints 63

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3.
Be sure that the AC adapter light is on.
4.
Be sure that the AC adapter is connected when you update BIOS to avoid BIOS corruption.
5.
Be sure that the computer is turned on, the rear power light is solid white (connected to an external
power source), and the front power light is solid white (normal operation).
6.
Remove all optical and flash drives from your system before turning it on.
7.
Be sure that the boot option is set to a working operating system drive.
8.
Be sure that externally connected monitors are turned on and their power lights are on. Not all monitors
are equipped with lights to indicate their functionality.
9.
Turn up the brightness and contrast controls of a display or external display device if the screen is dim.
During operation
The following steps provide simple, useful checks that you can perform when troubleshooting.
1.
To wake the computer:
a.
Press the power button or any key on the keyboard.
b.
If the system remains in the Sleep (Windows), Suspend (Linux), or Hibernate state, shut down the
system by pressing and holding the power button for at least 4 seconds.
c.
If the system does not shut down, unplug the power cord, wait a few seconds, and then plug it in
again. Then press the power button again to restart the system.
2.
Look for blinking lights on the computer. The blinking lights could be error codes that help diagnose the
problem.
3.
Check all cables for loose or incorrect connections (external devices, power cords, dock, and so on).
4.
After installing a non–Plug and Play expansion board or other option, reconfigure the computer. For
example, if you upgrade to a solid-state drive, you might have to reconfigure the boot order.
5.
Be sure that all required device drivers have been installed. For example, if you have connected a printer,
you must install a printer driver.
6.
If there is a network connection issue, plug another computer with a different cable into the network
connection. There might be a problem with the network plug or cable.
7.
If hardware has recently been installed, remove it and determine whether the computer functions
properly.
8.
If software has recently been installed, uninstall it and determine whether the computer functions
properly.
9.
If the screen is blank, confirm the display choice by pressing
Windows logo
+
p
and set to screen
only. Or plug an external monitor into a different video port on the computer, if one is available, and
close the computer lid.
10.
Verify that the latest version of BIOS, drivers, and software are installed. A new release might support
new features or fix the problem.
11.
Press the
caps lock
or
num lk
key. If the
caps lock
or
num lk
light toggles on or off, the keyboard is likely
operating correctly.
12.
Press the touchpad On/Off button light. If the light toggles on or off, the touchpad is likely operating
correctly.
Helpful Hints
63