Screen Message Probable Cause Recommended Action
513–Memory fan not detected. Memory fan is not connected or it
might have malfunctioned.
1. Reseat memory fan connector.
2. Replace memory fan.
601–Diskette Controller Error. Diskette controller circuitry or diskette
drive circuitry incorrect.
1. Run Computer Setup (F10 Setup).
2. Check and replace cables.
3. Clear CMOS.
4. Replace diskette drive.
5. Replace the system board.
605–Diskette Drive Type
Error.
Mismatch in drive type. 1. Run Computer Setup (F10 Setup).
2. Disconnect any other diskette controller devices
(tape drives).
3. Clear CMOS.
610–External Storage Device
Failure.
External tape drive not connected. Reinstall tape drive, or press F1 and allow system to
reconfigure without the drive.
611–Primary Diskette Port
Address Assignment Conflict.
Configuration error. 1. Run Computer Setup (F10 Setup).
2. Remove expansion cards.
3. Clear CMOS.
912–Computer Cover Has
Been Removed Since Last
System Start Up.
No action required.
914–Hood Lock Coil is not
Connected.
Hood lock mechanism is missing or
not connected.
1. Reconnect or replace the hood locking
mechanism.
2. Reseat or replace the hood locking mechanism
cable.
915–Fan Power from Power
Supply Not Connected.
The fan power cable is not connected,
or the power supply is bad.
1. Verify that all power supply cables are connected.
2. Replace the power supply.
916–Power Button Not
Connected.
The power button is not connected. Connect the power button.
917–Front Audio Not
Connected.
The front audio cable is not connected. Connect the front audio cable.
918–Front USB Not
Connected.
Front USB is not connected. Connect the front USB cable.
921–Device in PCI Express
Slot Failed to Initialize.
A PCI Express card was detected in
one of the slots, but failed to initialize
properly.
Reseat all PCI Express cards. If this failure occurred
after inserting a new card, there could be a problem with
that card.
960–CPU Overtemp occurred. The ambient temperature could
exceed operating limits (maximum =
95° F), or there are obstructions to
airflow, including dust build up.
1. Be sure you are not operating the system in an
environment that exceeds 95° F.
2. Disconnect power and open the access panel.
3. Check that cables are not blocking CPU heatsink
fans or front fan, if installed.
Table 5-18 POST error messages (continued)
126 Chapter 5 System diagnostics and troubleshooting ENWW
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