Screen message Probable cause Recommended action
214—DIMM Configuration
Warning
DIMMs are not installed correctly (not
paired correctly).
See the service label on the computer access panel for
the correct memory configurations, and reseat the
DIMMs accordingly.
215—DIMM Configuration
Error
216—Memory Size Exceeds
Maximum Supported
The amount of memory installed
exceeds that supported by the
hardware.
1. Verify how much memory the computer supports.
2. Remove the excess memory.
301—Keyboard Error Keyboard failure. 1. Reconnect the keyboard with the computer
powered off.
2. Check the connector for bent or missing pins.
3. Be sure that none of the keys are pressed.
4. Replace the keyboard.
303—Keyboard Controller
Error
I/O board keyboard controller is
defective or is not set properly.
1. Reconnect the keyboard with the computer
powered off.
2. Connect a keyboard directly to the computer
(instead of through a switch box).
3. Replace the system board.
304—Keyboard or System
Unit Error
Keyboard failure. 1. Reconnect the keyboard with the computer
powered off.
2. Connect a keyboard directly to the computer
(instead of through a switch box).
3. Be sure that none of the keys are pressed.
4. Replace keyboard.
5. Replace system board.
510—Splash Screen image
corrupted
Splash Screen image has errors. Update system BIOS.
511—CPU Fan not detected Fan is not connected or is defective. 1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
512—Chassis fan not detected Fan missing, disconnected, or
defective.
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
513—Front Chassis fan not
detected
Front fan missing, disconnected, or
defective.
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
514—Memory fan not
detected
Memory fan missing, disconnected, or
defective.
1. Reseat the fan cable.
2. Reseat the fan.
3. Replace the fan.
Table 6-9 POST error messages (continued)
158 Chapter 6 Diagnostics and troubleshooting ENWW
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