Control panel message Description Recommended action
previous system BIOS version.
Otherwise, update the ME firmware
version.
3. If the error still persists, replace the
system board.
2220-USB Key Provisioning file has
mismatch version
Provisioning file contained on the USB key
is not a valid version for the current ME
firmware.
1. Reboot the computer.
2. If the error persists and system BIOS
has been recently updated, restore
previous system BIOS version.
Otherwise, update the ME firmware
version.
3. If the error still persists, replace the
system board.
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.
162 Chapter 9 POST error messages
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