Specifications

94
Table 28, POST - Codes
Co de Function Descriptio n
2Ah Gam e Port POST Detection of
g
ame port
2Bh R TC POST Copies current RTC tim e in BIOS data area
(BDA)
2Dh RAM POST Memory test
40h Checksum Recalculates CMOS checksum
41h Option ROM Init Initializes all non-video ISA option R OMs stored
in option ROM table
4 Fh Boot POST Attemp t to boot
50h (N one) Restart
DEh (None) Pow er-on or hardware reset
6xh POST Shutdown Restart caused by software, x indicates
shutdown type
51h POST Shutdown Invalid sh utdow n type detected, system halted
CFh POST Be
g
in E arl y in it, be
g
in execution of POST routines