HP t730 Troubleshooting Manual page 41

Table B-4 Numeric Codes and Text Messages (continued)
Control panel message
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
Network Server Mode Active and No Keyboard
Attached
Parity Check 2
Description
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.
Keyboard failure while Network Server Mode
enabled.
Parity RAM failure.
Recommended action
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.
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.
Run Computer Setup and Diagnostic utilities.
POST Numeric Codes and Text Messages 35