HP t820 Maintenance & Service Manual page 86

Table C-4 Numeric Codes and Text Messages (continued)
Control panel message
301-Keyboard Error
510-Flash Screen Image Corrupted
512-Chassis, Rear Chassis, or Front Chassis
Fan not Detected
513-Front Chassis fan not detected
912-Computer Cover Has Been Removed
Since Last System Startup
921-Device in PCI Express slot failed to
initialize
1720-SMART Hard Drive Detects Imminent
Failure
Invalid Electronic Serial Number
78 Appendix C Diagnostics and Troubleshooting
Description
Keyboard failure.
Flash Screen image has errors.
Chassis, rear chassis, or front chassis fan is
not connected or may have malfunctioned.
Front chassis fan is not connected or may
have malfunctioned.
Computer cover was removed since last
system startup.
There is an incompatibility/problem with this
device and the system or PCI Express Link
could not be retrained to an x1.
Hard drive is about to fail. (Some hard
drives have a hard drive firmware patch that
will fix an erroneous error message.)
Electronic serial number is missing.
Recommended action
1.
Reconnect keyboard with computer
turned off.
2.
Check connector for bent or missing
pins.
3.
Ensure that none of the keys are
depressed.
4.
Replace keyboard.
Reflash the system ROM with the latest BIOS
image.
1. Reseat chassis, rear chassis, or front
chassis fan.
2. Reseat fan cable.
3.
Replace chassis, rear chassis, or front
chassis fan.
1.
Reseat front chassis fan.
2. Reseat fan cable.
3.
Replace front chassis fan.
No action required.
Try rebooting the system. If the error
reoccurs, the device may not work with this
system
1. Determine if hard drive is giving correct
error message. Run the Drive Protection
System test using F2 Diagnostics.
2.
Apply hard drive firmware patch
if applicable. (Available at
http://www.hp.com/support.)
3. Back up contents and replace hard
drive.
Enter the correct serial number in Computer
Setup.