6-8
Chapter 6: Memory Dump
•
Corruption of the interrupt vector table will prevent memory
dumps from working. If the NMI is not routed through to the
ROM, the memory dump process cannot start. The Memory Dump
ROM uses several BIOS interrupts to access the diskette, get time
and date, and determine the amount of extended memory present.
Corruption of the interrupt chain for these BIOS interrupts will
prevent memory dumps from working/completing.
•
Memory dumps are not supported with Nu-Mega’s Soft-ice or
other equivalent programs installed. The ROM’s accessing
extended memory for dumping of addresses past the 15.75 MB
boundary with Soft-ice 2.80 installed results in Soft-ice popping up
and proclaiming a protect violation, failing the dump process.
•
Memory dumps initiated while at Nu-Mega Technologies’ Soft-ice
prompt will not complete. Soft-ice seems to absorb the NMI when it
is active on the screen. When the user exits the debugger and
returns to DOS, the dump does not then occur and further
depressions of the memory dump switch will not cause a memory
dump to start. A NMI occurred due to the dump switch (absorbed
by Soft-ice) and no software has run to re-enable further memory
dump switch NMIs.
•
Installation of Microsoft’s APM module power.exe without
enabling the 7456’s PC BIOS APM options may result in failed
memory dumps if emm386.exe is also installed. The combination of
emm386.exe and power.exe without the BIOS’s APM support
enabled causes emm386.exe to take an exception and halt the
system when the memory dump button is pushed. emm386.exe
displays a message: EMM386 has detected error #13 in an
application at memory address 0048:0637. To minimize the chance
of data loss, EMM386 has halted your computer. For more
information, see the readme.txt file. To restart your computer press
ENTER. Users installing power.exe should have the BIOS APM
option enabled.
•
Windows memory dumps may not always complete.
Summary of Contents for RealPOS 80c
Page 1: ...NCR RealPOS 80c Release 1 1 Hardware User s Guide B005 0000 1359 Issue C...
Page 17: ...xv...
Page 18: ......
Page 55: ...Chapter 1 Product Overview 1 37...
Page 56: ......
Page 80: ...2 24 Chapter 2 Hardware Installation...
Page 108: ......
Page 118: ...5 10 Chapter 5 BIOS Updating Procedures...
Page 133: ...Chapter 6 Memory Dump 6 15...
Page 134: ......
Page 162: ...D 4...