Specifications
Table Of Contents
- Product Features
- Activating and Customizing the Software
- Computer Setup (F10) Utility
- Illustrated parts catalog
- Serial ATA (SATA) Drive Guidelines and Features
- Routine Care and Disassembly Preparation
- Removal and Replacement Procedures – Microtower (MT) Chassis
- Removal and Replacement Procedures – Small Form Factor (SFF) Chassis
- Troubleshooting Without Diagnostics
- Safety and Comfort
- Before You Call for Technical Support
- Helpful Hints
- Solving General Problems
- Solving Power Problems
- Solving Hard Drive Problems
- Solving Media Card Reader Problems
- Solving Display Problems
- Solving Audio Problems
- Solving Printer Problems
- Solving Keyboard and Mouse Problems
- Solving Hardware Installation Problems
- Solving Network Problems
- Solving Memory Problems
- Solving Processor Problems
- Solving CD-ROM and DVD Problems
- Solving USB Flash Drive Problems
- Solving Front Panel Component Problems
- Solving Internet Access Problems
- Solving Software Problems
- Contacting Customer Support
- HP PC Hardware Diagnostics
- Backup and Recovery
- Power Cord Set Requirements
- POST Error Messages
- Password Security and Resetting CMOS
- Specifications
- Index

Table E-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
601-Diskette Controller Error Diskette controller circuitry or floppy drive
circuitry incorrect.
1. Check and/or replace cables.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS on page 208.)
3. Replace diskette drive.
4. Replace the system board.
605-Diskette Drive Type Error Mismatch in drive type. 1. Disconnect any other diskette
controller devices (tape drives).
2. Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS on page 208.)
660-Display cache is detected unreliable Integrated graphics controller display cache
is not working properly and will be disabled.
Replace system board if minimal graphics
degrading is an issue.
912-Computer Cover Has Been Removed
Since Last System Startup
Computer cover was removed since last
system startup.
No action required.
917-Front Audio Not Connected Front audio harness has been detached or
unseated from motherboard.
Reconnect or replace front audio harness.
918-Front USB Not Connected Front USB harness has been detached or
unseated from motherboard.
Reconnect or replace front USB harness.
921-Device in PCI Express slot failed to
initialize
There is an incompatibility/problem with this
device and the system or PCI Express Link
could not be retrained to an x1.
Try rebooting the system. If the error
reoccurs, the device may not work with this
system
1151-Serial Port A Address Conflict
Detected
Both external and internal serial ports are
assigned to COM1.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS on page 208.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1152-Serial Port B Address Conflict
Detected
Both external and internal serial ports are
assigned to COM2.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS on page 208.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1155-Serial Port Address Conflict Detected Both external and internal serial ports are
assigned to same IRQ.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password 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 199










