HP dc7900 - Convertible Minitower PC Troubleshooting Manual page 60

Table A-1 Numeric Codes and Text Messages (continued)
Control panel message
912-Computer Cover Has Been Removed
Since Last System Startup
917-Front Audio Not Connected
918-Front USB Not Connected
921-Device in PCI Express slot failed to
initialize
1151-Serial Port A Address Conflict Detected Both external and internal serial ports are
1152-Serial Port B Address Conflict Detected Both external and internal serial ports are
1155-Serial Port Address Conflict Detected
1720-SMART Hard Drive Detects Imminent
Failure
1796-SATA Cabling Error
1797-SATA Drivelock is not supported in
RAID mode.
54 Appendix A POST Error Messages
Description
Computer cover was removed since last
system startup.
Front audio harness has been detached or
unseated from motherboard.
Front USB harness has been detached or
unseated from motherboard.
There is an incompatibility/problem with this
device and the system or PCI Express Link
could not be retrained to an x1.
assigned to COM1.
assigned to COM2.
Both external and internal serial ports are
assigned to same IRQ.
Hard drive is about to fail. (Some hard drives
have a hard drive firmware patch that will fix
an erroneous error message.)
One or more SATA devices are improperly
attached. For optimal performance, the SATA
0 and SATA 1 connectors must be used
before SATA 2 and SATA 3.
Drivelock is enabled on one or more SATA
hard drives, and they cannot be accessed
while the system is configured for RAID
mode.
Recommended action
No action required.
Reconnect or replace front audio harness.
Reconnect or replace front USB harness.
Try rebooting the system. If the error
reoccurs, the device may not work with this
system
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS on page 61.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS on page 61.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS on page 61.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1. Determine if hard drive is giving correct
error message. Enter Computer Setup
and run the Drive Protection System test
under Storage > DPS Self-test.
2. Apply hard drive firmware patch
if applicable. (Available at
http://www.hp.com/support.)
3. Back up contents and replace hard
drive.
Ensure SATA connectors are used in
ascending order. For one device, use SATA
0. For two devices, use SATA 0 and SATA 1.
For three devices, use SATA 0, SATA 1, and
SATA 2.
Either remove the Drivelocked SATA device
or disable the Drivelock feature. To disable
the Drivelock feature, enter Computer Setup,
change Storage > Storage Options > SATA
ENWW