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Table 7-6
System diagnostics failure codes and user actions (continued)
Test description
BIOS Application
CMOS Recovery
Battery Check
Wireless Modules
Fan
Power Good (Troubleshooting) lights
HP has added troubleshooting power lights to ZBook Gx Mobile Workstations (Studio, ZBook 15, and ZBook
17) to help troubleshoot power-on issues. The lights indicate when the system board power rails are unstable
and/or the system needs a hardware reset.
Example
112 Chapter 7 Troubleshooting guide
Error
Failure description
code
BIOS Application Error
501
CMOS Recovery Occurred
502
Primary Battery Replace
601
Not installed or responding
701
Fan not operating correctly
90B
Suggested user actions
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.
This message indicates that CMOS recovery was completed
successfully. No further action is required.
This message indicates that the primary battery has very low
capacity. Search for support documentation at
http://www.hp.com/support
for details on using the HP Support
Assistant to verify the battery capacity and, if necessary, order a
replacement.
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.
The system fan may be malfunctioning. Replace the fan.
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Table of Contents
Troubleshooting
