NEC POWERMATE P - SERVICE MANUAL 1995 Service And Reference Manual page 114

4-6 Maintenance and Troubleshooting
Message
HDD Controller Failure
INTR #1 Error
INTR #2 Error
Invalid Boot Diskette
Keyboard Is Locked
Keyboard Error
KB/Interface Error
No ROM BASIC
Off Board Parity Error
On Board Parity Error
Parity Error ????
Message
Memory Parity Error at xxxxx
I/O Card Parity Error at xxxxx
DMA Bus Time-out
Table Section 4-2 System Error Messages
Description
controller. Power off the system and check all connections.
The BIOS cannot communicate with the hard disk drive
controller. Power off the system and check all connections.
Interrupt channel 1 failed POST.
Interrupt channel 2 failed POST.
The BIOS can read the disk in diskette drive A, but cannot
boot the system. Use another boot diskette.
Keyboard lock on the system is engaged. The system must be
unlocked to continue.
There is a timing problem with the keyboard. Set the Keyboard
option in Setup to Not Installed to skip the keyboard POST
routines.
There is a error in the keyboard connector.
Cannot find a bootable sector on either diskette drive A or
hard disk drive C. The BIOS calls INT 18h which generates
this message. Use a bootable disk.
Parity error in the installed expansion memory. The format is:
OFF BOARD PARITY ERROR ADDR (HEX) = (XXXX)
XXXX is the hex address where the error occurred.
Parity is not supported and error will not occur
Parity error in system memory at an unknown address.
Table Section 4-4 ISA NMI Error Messages
Description
Memory failed. If the memory location can be determined, it is
displayed as xxxxx. If not, the message is Memory Parity
Error ????.
An expansion card failed. If the address can be determined, it
is displayed as xxxxx. If not, the message is I/O Card Parity
Error ????.
A device has driven the signal for more than 7.8 microseconds.