
Quick Troubleshooting Guide
B-5
POST Error Messages
Continued
Screen Message Beeps* Probable Cause Recommended Action
660-Display Cache is
Detected Unreliable
None Integrated video controller
display cache not working
properly and will be disabled.
Replace system board if minimal
video degrading is an issue.
912-Computer Cover Has
Been Removed Since Last
System Start Up
None No action required.
914-Hood Lock Coil is not
Connected
None Hood lock mechanism is
missing or not connected.
1. Reconnect or replace hood
locking mechanism.
2. Reseat or replace hood locking
mechanism cable.
916-Thermal Sensor from
Processor Heatsink is not
Connected.
None Processor heatsink cable not
connected to system board.
Reseat or replace the processor
heatsink cable going to the system
board.
917-Expansion Riser not
Detected
None Riser board not seated or not
installed.
Install riser board if missing or
remove and reseat to ensure good
connection.
1151-Serial Port 1 Address
Conflict Detected
2S Both external and internal
serial ports are assigned to
COM1.
1. Remove any Comm port
expansion cards.
2. Clear CMOS.
3. Reconfigure card resources
and/or run Computer Setup
(F10 Setup).Run Computer
Setup or Windows utilities.
1152-Serial Port 2 Address
Conflict Detected
2S Both external and internal
serial ports are assigned to
COM2.
1. Remove any Comm port
expansion cards.
2. Clear CMOS.
3. Reconfigure card resources
and/or run Computer Setup
(F10 Setup).Run Computer
Setup or Windows utilities.
1155- Serial Port Address
Conflict Detected
2S Both external and internal
serial ports are assigned to
same IRQ.
1. Remove any Comm port
expansion cards.
2. Clear CMOS.
3. Reconfigure card resources
and/or run Computer Setup
(F10 Setup). Run Computer
Setup or Windows utilities.
1201-System Audio Address
Conflict Detected
2S Device IRQ address conflicts
with another device.
Reset the IRQ.
* L = Long, S = Short
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