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Appendix B
Power-on Diagnostics
System Device Check
................................
B-1
Timer and CMOS RAM Check.
.......................
B-2
RAM Check
.......................................
B-3
Keyboard Controller and Keyboard Check
...............
B-3
Display Card Check
.................................
B-4
Optional RAM Check
............................... B-4
Diskette Drive Seek Check.
...........................
B-4
Hard Disk Controller and Hard Disk Check
.............. B-5
Appendix C
Performing System Diagnostics
Starting System Diagnostics
........................... C-1
Modifying the DEVICE LIST.
......................... C-3
Selecting a Test.
....................................
C-5
Resuming From an Error.
.........................
C-6
System Board Check
.................................
C-7
Memory Check
.....................................
C-8
Keyboard Check
.....................................
C-8
Monochrome Display Adapter and CRT Check
...........
C- 10
Monochrome Adapter Check
.....................
C- 11
Attribute Check
................................
C-11
Character Set Check
............................
C-12
Video Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-12
Sync Check . . .
...............................
C-13
Run All Above Checks
..........................
C-13
Color Graphics Display Adapter and CRT Check
.........
C-13
Color Graphics Adapter Check
.................... C-14
Attribute Check
................................
C- 15
Character Set Check
............................
C-15
40-column Character Set Check
...................
C-16
320x200 Graphics Mode Check.
...................
C- 17
640x200 Graphics Mode Check.
...................
C- 17
Screen Paging Check
............................
C- 18
Light Pen Check
................................
C-19
Color Video Check.
............................. C-20
Sync Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C-20
Run All Above Checks
..........................
C-20
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