IBM PC CONVERTIBLE Technical Reference page 11

Description
Error Indication
Display initialization: Ifnot a
resume sequence, initialize the
display for POST. Ifthe LCD is
present, loads the default font
from vectors hex I F and 44.
Interrupt controller test: Tests the Error 0 I 0 I with icon,
interrupt controller and initializes I-long and I-short
it to edge triggered, software beep, then waits for
end-of-interrupt, and interrupt power off or
types 8-15.
Fn/Ctl/Del sequence.
System timers tests: Tests the One of the following:
system timers. Timer-O is
initialized to 18.2 interrupts per Error 0 I 03 with icon,
second rate. I-long and I-short
beep, then waits for
power off or
Fn/CtljDel sequence.
Error 0 I 02 with icon
and Fl prompt; POST
continues.
DMA controller test: Tests the
Error 0105 with icon,
DMA controller. I-long and I-short
beep, then waits for
power off or
Fn/CtljDel sequence.
Figure 1-1 (Part 3 of 7). Power-on Self-Test Sequence
1-4 Power-On Self-Test (POST)