HP ZBook 15 G4 Maintenance And Service Manual page 97

Table 6-5 System diagnostics failure codes and user actions
Test description Failure description
Wireless Module not The system has detected a
supported wireless module installed
in the system that is not
supported and has been
disabled.
WLAN Module ID (702)
WWAN Module ID (703)
Bluetooth Module ID (704)
GPS Module ID (705)
Front Audio Not Front audio cable has been
Connected detached or unseated from
the system motherboard.
Startup Test Hard Disk 1 SMART
Boot Device Manager Boot device not found
BIOS Recovery BIOS Recovery Occurred
BIOS Application BIOS Application Error
CMOS Recovery CMOS Recovery Occurred
Battery Check Primary Battery Replace
Wireless Modules Not installed or responding
Keyboard Error Keyboard has
malfunctioned.
CPU Fan Not Detected CPU fan is not connected or
may have malfunctioned.
Chassis Fan Not Chassis fan is not
Detected connected or may have
malfunctioned.
Chassis Fan Not
Detected (Rear)
Error
code Suggested user actions
70x Remove non-supported component.
100 Reseat the front audio cable on the system board.
301 Attempt to reseat the hard drive and repeat the test. The hard
drive may have failed.
3F0 Reset BIOS. Then reseat the hard drive and repeat the test.
500 This message indicates that BIOS recovery was completed
successfully. No further action is required.
501 The BIOS installation may have become corrupted. Download the
latest version of the BIOS and install it.
If reinstalling the BIOS fails, contact support for further
assistance.
502 This message indicates that CMOS recovery was completed
successfully. No further action is required.
601 This message indicates that the primary battery has very low
capacity. See Checking the Status of the Battery"
http://h20566.www2.hp.com/hpsc/doc/public/display?
docLocale=en_US&docId=emr_na-c00821536
using the HP Support Assistant to verify the battery capacity and,
if necessary, order a replacement.
701 Reseat the wireless LAN adapter module and antennas.
Because seating or reseating a wireless LAN adapter is unique to
each computer model, see the WLAN module removal section in
the removal and replacement chapter for further details.
Contact support if third-party wireless adapters are installed in
the computer.
800 Replace the keyboard.
900 Check the fan connection. If properly connected, replace the fan.
901 Check the fan connection. If properly connected, replace the fan.
for details on
General troubleshooting steps 87