Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 210

Message Beeps*
1151-System Board 2S
Comm Port 1
Address Assignment
Conflict
1152-System Board 2S
Comm Port 2
Address Assignment
Conflict
1720-SMART Hard None
Drive detects
imminent failure
1721-SMART SCSI None
Hard Drive detects
imminent failure
1771-Primary Disk 2S
Port Address
Assignment Conflict
1772-Secondary Disk 2S
Port Address
Assignment Conflict
1780-Disk 0 Failure None
1781-Disk 1 Failure None
1782-Disk Controller None
Failure
1790-Disk 0 Failure None
1791-Disk 1 Failure None
1792-Secondary Disk None
Controller Failure
* L = Long, S = Short
Probable Cause
Both external and internal
serial ports are assigned to
COM1.
Both external and internal
serial ports are assigned to
COM2.
Hard drive is about to fail.
Hard drive is about to fail.
Internal and external hard drive
controllers are both assigned to
the primary address.
Internal and external hard drive
controllers are both assigned to
the secondary address.
Hard drive/format error.
Hard drive/format error.
Hard drive circuitry error.
Hard drive error or wrong drive
type.
Hard drive error or wrong drive
type.
Hard drive circuitry error.
Recommended Action
Run Computer Setup or Windows
NT or Windows 95 utilities.
Run Computer Setup or Windows
NT or Windows 95 utilities.
Back up contents and replace hard
drive.
Back up contents and replace hard
drive.
Run Computer Setup or Windows
NT or Windows 95 utilities.
Run Computer Setup or Windows
NT or Windows 95 utilities.
Run the Configuration and
Diagnostics utilities.
Run the Configuration and
Diagnostics utilities.
Run the Configuration and
Diagnostics utilities.
Run the Configuration and
Diagnostics utilities.
Run the Configuration and
Diagnostics utilities.
Run the Configuration and
Diagnostics utilities.