HP 5850 - Deskjet Color Inkjet Printer Reference Manual page 189

Table C-1 Numeric Codes and Text Messages (continued)
Control panel message
304-Keyboard or System Unit Error
501-Display Adapter Failure
510-Flash Screen Image Corrupted
511-CPU, CPUA, or CPUB Fan not Detected CPU fan is not connected or may have
512-Chassis, Rear Chassis, or Front Chassis
Fan not Detected
601-Diskette Controller Error
605-Diskette Drive Type Error
917-Front Audio Not Connected
918-Front USB Not Connected
921-Device in PCI Express slot failed to
initialize
Description
Keyboard failure.
Graphics display controller.
Flash Screen image has errors.
malfunctioned.
Chassis, rear chassis, or front chassis fan is
not connected or may have malfunctioned.
Diskette controller circuitry or floppy drive
circuitry incorrect.
Mismatch in drive type.
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.
Recommended action
1. Reconnect the keyboard with computer
turned off.
2. Ensure that none of the keys are
depressed.
3. Replace the keyboard.
4. Replace the system board.
1. Reseat the graphics card (if applicable).
2. Clear CMOS.
3. Verify monitor is attached and turned
on.
4. Replace the graphics card (if possible).
Reflash the system ROM with the latest BIOS
image.
1. Reseat CPU fan.
2. Reseat fan cable.
3. Replace CPU fan.
1. Reseat chassis, rear chassis, or front
chassis fan.
2. Reseat fan cable.
3. Replace chassis, rear chassis, or front
chassis fan.
1. Run Computer Setup.
2. Check and/or replace cables.
3. Clear CMOS.
4. Replace diskette drive.
5. Replace the system board.
1. Run Computer Setup.
2. Disconnect any other diskette controller
devices (tape drives).
3. Clear CMOS.
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
POST Numeric Codes and Text Messages 177