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Table 8-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
Invalid Electronic Serial Number Electronic serial number is missing. Enter the correct serial number in Computer
Setup.
Network Server Mode Active and No
Keyboard Attached
Keyboard failure while Network Server
Mode enabled.
1. Reconnect keyboard with computer
turned off.
2. Check connector for bent or missing
pins.
3. Ensure that none of the keys are
depressed.
4. Replace keyboard.
Parity Check 2 Parity RAM failure. Run Computer Setup and Diagnostic
utilities.
142 Chapter 8 POST Error Messages