NEC Direction SP User Manual page 182

Message Press <F1> to resume, <F2> to enter SETUP.
Cause Displayed after any recoverable error
message.
Solution Press <F1> to start the boot process, or <F2>
to enter the Setup Utility program and change
any settings.
Message Parity Check 1.
Cause Parity error found in the system bus. BIOS
attempts to locate the address and display it
on the screen. If it cannot locate the address, it
displays ????.
Message Parity Check 2.
Cause Parity error found in the I/O bus. BIOS
attempts to locate the address and display it
on the screen. If it cannot locate the address, it
displays ????.
Message Real time clock error.
Cause The real time clock failed BIOS test.
Solution This malfunction may require board repair.
Message
Shadow RAM failed at offset: nnnn .
Cause Shadow RAM failed at offset: nnnn of the 64K
block at which the error was detected.
Message System cache error – Cache disabled.
Cause RAM cache failed the BIOS test. BIOS
disabled the cache.
System Board, Connectors, and Error Messages C-9