HP EliteDesk 705 G1 Desktop Mini Maintenance And Service Manual page 213

Control panel message
515-Power Supply fan not detected
601-Diskette Controller Error
605-Diskette Drive Type Error
660-Display cache is detected unreliable
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
1152-Serial Port B Address Conflict Detected
1155-Serial Port Address Conflict Detected
Description
Power supply fan is not connected or may have
malfunctioned.
Diskette controller circuitry or floppy drive
circuitry incorrect.
Mismatch in drive type.
Integrated graphics controller display cache is
not working properly and will be disabled.
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.
Both external and internal serial ports are
assigned to COM1.
Both external and internal serial ports are
assigned to COM2.
Both external and internal serial ports are
assigned to same IRQ.
Recommended action
1. Reseat power supply fan.
2. Reseat fan cable.
3. Replace power supply fan.
1. Check and/or replace cables.
2. Clear CMOS. (See Appendix B,
security and resetting CMOS
on page 208.)
3. Replace diskette drive.
4. Replace the system board.
1. Disconnect any other diskette controller
devices (tape drives).
2. Clear CMOS. (See Appendix B,
security and resetting CMOS
on page 208.)
Replace system board if minimal graphics
degrading is an issue.
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,
security and resetting CMOS
on page 208.)
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,
security and resetting CMOS
on page 208.)
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,
security and resetting CMOS
on page 208.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
POST numeric codes and text messages 203
Password
Password
Password
Password
Password