User`s manual

2-28
Hardware Setup
MS-7640
Chapter 2
Debug LED Panel
Please refer to the table below to get more nformaton about the Debug LED mes-
sage.
Post Status
D1 Perform keyboard controller BAT test. Check f wakng up from power
management suspend state. Save power-on CPUID value n scratch
CMOS.
03 Dsable NMI, Party, vdeo for EGA, and DMA controllers. Intalze
BIOS, POST, Runtme data area. Also ntalze BIOS modules on
POST entry and GPNV area. Intalzed CMOS as mentoned n the
Kernel Varable “wCMOSFlags”.
0C Detects the presence of Keyboard n KBC port.
13 Early POST ntalzaton of chpset regsters.
2A Intalzes derent devces through DIM.
2C Intalzes derent devces. Detects and ntalzes the vdeo adapter
nstalled n the system that have optonal ROMs.
37 Dsplayng sgn-on message, CPU nformaton, setup key message
and any OEM specc nformaton.
38 Intalzes derent devces through DIM.
3C Md POST ntalzaton of chpset regsters.
60 Intalzes NUM-LOCK status and programs the KBD typematc rate.
75 Intalzes INT-13 and prepare for IPL detecton.
78 Intalzes IPL devces controlled by BIOS and opton ROMs.
8C Late POST ntalzaton of chpset regsters.
00 Passes control to OS Loader (typcally INT 19h).