Intel VS440FX - ISA NMI Messages

VS440FX Motherboard Technical Product Specification
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4.4 ISA NMI Messages
NMI Message Explanation
Memory Parity Error at
xxxxx
Memory failed. If the memory location can be determined, it is displayed as xxxxx.
If not, the message is Memory Parity Error ????.
I/O Card Parity Error at
xxxxx
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 ????.
DMA Bus Time-out A device has driven the bus signal for more than 7.8 microseconds.