Table 6-5  System diagnostics failure codes and user actions
Test description Failure description
Error 
code Suggested user actions
Wireless Module not 
supported
The system has detected a 
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)
70x Remove non-supported component.
Front Audio Not 
Connected
Front audio cable has been 
detached or unseated from 
the system motherboard.
100 Reseat the front audio cable on the system board.
Startup Test Hard Disk 1 SMART 301 Attempt to reseat the hard drive and repeat the test. The hard 
drive may have failed.
Boot Device Manager Boot device not found 3F0 Reset BIOS. Then reseat the hard drive and repeat the test.
BIOS Recovery BIOS Recovery Occurred 500 This message indicates that BIOS recovery was completed 
successfully. No further action is required.
BIOS Application BIOS Application Error 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.
CMOS Recovery CMOS Recovery Occurred 502 This message indicates that CMOS recovery was completed 
successfully. No further action is required.
Battery Check Primary Battery Replace 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 for details on 
using the HP Support Assistant to verify the battery capacity and, 
if necessary, order a replacement.
Wireless Modules Not installed or responding 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.
Keyboard Error Keyboard has 
malfunctioned.
800 Replace the keyboard.
CPU Fan Not Detected CPU fan is not connected or 
may have malfunctioned.
900 Check the fan connection. If properly connected, replace the fan.
Chassis Fan Not 
Detected
Chassis Fan Not 
Detected (Rear)
Chassis fan is not 
connected or may have 
malfunctioned.
901 Check the fan connection. If properly connected, replace the fan.
General troubleshooting steps 87