Troubleshooting Guide

A–10 www.hp.com Troubleshooting Guide
POST Error Messages
1794-Inaccessible
devices attached to
SATA 1 and/or
SATA 3
A device is attached to
SATA 1 and/or SATA 3.
Devices attached to these
connectors will be
inaccessible while “SATA
Emulation” is set to
“Combined IDE
Controller” in Computer
Setup.
1. If using Windows 2000 or Windows
XP, change “SATA Emulation” to
“Separate IDE Controller” in
Computer Setup.
2. If not using Windows 2000 or
Windows XP, relocate the affected
devices to SATA 0 or SATA 2 (if
available).
3. Remove the affected devices from
SATA 1 and SATA 3.
1796-SATA Cabling
Error
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.
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,
SATA1, and SATA 2.
1801-Microcode
Patch Error
Processor is not
supported by
ROM BIOS.
1. Upgrade BIOS to proper version.
2. Change the processor.
Invalid Electronic
Serial Number
Electronic serial number
has become corrupted.
1. Run Computer Setup. If Setup already
has data in the field or will not allow
the serial number to be entered,
download from www.hp.com and run
SP5572.EXE (SNZERO.EXE).
2. Run Computer Setup and try to enter
serial number under Security, System
ID, then save changes.
Numeric Codes and Text Messages (Continued)
Code/Message Probable Cause Recommended Action