Control panel message Description Recommended action
change Storage > Storage Options > SATA
Emulation back to RAID and select File >
Save Changes and Exit.
1801-Microcode Patch Error Processor is not supported by ROM BIOS. 1. Upgrade BIOS to proper version.
2. Change the processor.
Invalid Electronic Serial Number Electronic serial number is missing. Enter the correct serial number in Computer
Setup.
Memory Parity Error Parity RAM failure.
Third-party graphics card may be causing a
problem.
Run Computer Setup and Diagnostic utilities.
Remove third-party graphics card to see if the
problem goes away.
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.
Third-party graphics card may be causing a
problem.
Run Computer Setup and Diagnostic utilities.
Remove third-party graphics card to see if the
problem goes away.
System will not boot without fan CPU fan not installed or disconnected in
VSFF chassis.
1. Remove the computer cover, press the
power button, and see if the processor
fan spins. If the processor fan is not
spinning, make sure the fan's cable is
plugged onto the system board header.
Ensure the heatsink is properly seated
and installed.
2. If the fan is plugged in and the heatsink
is properly seated but the fan does not
spin, then replace the heatsink-fan
assembly.
Table A-1 Numeric Codes and Text Messages (continued)
ENWW POST Numeric Codes and Text Messages 55
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