AST RESEARCH, INC. TECHNICAL BULLETIN #0810 01-11-93
POWER EXEC AND FULL POST TEST
In order to avoid errors when initiating the full post tests on the Power
Exec:
Wait 2 seconds after the AST logo appears at boot-up before using to
cause a complete Power On Self Test (POST.) Do not repeatedly enter
after the AST logo appears. During the crucial machine startup timing, one
to three entries of the hot key suffice.