Table 6-7 Blinking light codes and what they mean (continued)
Blink codes Error
Caps and num lk lights = 5 blinks System board error
Caps and num lk lights = 6 blinks Intel Trusted Execution Technology (TXT) Error
Caps and num lk lights = 7 blinks Sure Start unable to find valid BIOS Boot Block image
Caps and num lk lights = 8 blinks Sure Start has identified a problem (Manual Recovery Policy Set)
POST error messages
The Power-On Self-Test (POST) is a series of diagnostic tests that runs automatically when the computer
is turned on. If the POST encounters a problem, visual error messages are displayed before the
operating system starts.
POST checks the following items to ensure that the computer system is functioning properly:
● Memory
● Processors
● BIOS
● Mass storage devices
● Fans
The following table describes errors encountered during HP PC Hardware Diagnostics (UEFI).
Table 6-8
System diagnostics failure codes and actions to address the failure
Test description Failure description Error
code
Suggested user actions
Startup Test Memory module 200 Attempt to reseat the memory module, and then repeat the
test.
For details on troubleshooting issues related to the
memory module, search for support documentation at
http://www.hp.com/support.
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.
78 Chapter 6 Troubleshooting guide
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