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Appendix C
Power-on Diagnostics
System
Device Check
................................
C-1
Timer and CMOS RAM Check.
.......................
C-2
RAM Check
.......................................
C-3
Keyboard Controller and Keyboard Check.
...............
C-3
Floppy Disk Drive Seek Check.
........................
C-4
Appendix D
Performing System Diagnostics
Starting System Diagnostics
...........................
Modifying the DEVICE LIST
..........................
Selecting a Test
.....................................
Resuming From an Error
..........................
System Board Check
.................................
Memory Check
...................................
Keyboard Check
....................................
Monochrome Display Adapter and CRT Check
...........
Monochrome Adapter Check.
.....................
Attribute Check
................................
Character Set Check
............................
Video Check
...................................
Sync Check
....................................
Run All Above Checks
..........................
Color Graphics Adapter and CRT Check
................
Color Graphics Adapter Check
....................
Attribute Check
................................
Character Set Check
............................
40-column Character Set Check
...................
320x200 Graphics Mode Check.
...................
640x200 Graphics Mode Check.
...................
Screen Paging Check
............................
Light Pen Check
................................
Color Video Check
..............................
Sync Check
...................................
Run All Above Checks
..........................
D-1
D-3
D-5
D-6
D-7
D-8
D-9
D-10
D-11
D-12
D-12
D-13
D-13
D-13
D-14
D-15
D-15
D-16
D-17
D-17
D-18
D-19
D-20
D-21
D-21
D-21
Contents ix