NEC Express5800/320Ma User Manual page 65

17
Initialize the cache before determining the amount of memory.
18
Initialize the 8254 timer.
1A
Initialize the 8237 DMA controller.
1C
Reset the programmable interrupt controller.
20
Test the DRAM refresh rate.
22
Test the 8742 keyboard controller.
24
Set the extra segment (ES) register to 4GB.
26
Enable the A20 line.
28
Autosize DRAM.
29
Initialize the POST memory manager.
2A
Clear 512 KB of base RAM.
2B
Initialize enhanced CMOS.
2C
RAM failure on address line xxxx.
2E
RAM failure on data bits xxxx of low byte of memory bus.
POST and Online Diagnostic Codes
POST Codes
A-3