MSI 990FXA User Guide - Page 39

Debug LED Panel

Page 39 highlights

Chapter 2 MS-7640 Debug LED Panel Please refer to the table below to get more information about the Debug LED message. Post D1 03 0C 13 2A 2C 37 38 3C 60 75 78 8C 00 Status Perform keyboard controller BAT test. Check if waking up from power management suspend state. Save power-on CPUID value in scratch CMOS. Disable NMI, Parity, video for EGA, and DMA controllers. Initialize BIOS, POST, Runtime data area. Also initialize BIOS modules on POST entry and GPNV area. Initialized CMOS as mentioned in the Kernel Variable "wCMOSFlags". Detects the presence of Keyboard in KBC port. Early POST initialization of chipset registers. Initializes different devices through DIM. Initializes different devices. Detects and initializes the video adapter installed in the system that have optional ROMs. Displaying sign-on message, CPU information, setup key message and any OEM specific information. Initializes different devices through DIM. Mid POST initialization of chipset registers. Initializes NUM-LOCK status and programs the KBD typematic rate. Initializes INT-13 and prepare for IPL detection. Initializes IPL devices controlled by BIOS and option ROMs. Late POST initialization of chipset registers. Passes control to OS Loader (typically INT 19h). 2-23

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2-23
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 man-
agement 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 “wC-
MOSFlags”.
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±fferent dev±ces through DIM.
2C
In±t±al±zes d±fferent dev±ces. Detects and ±n±t±al±zes the v±deo adapter ±n-
stalled ±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±fic ±nformat±on.
38
In±t±al±zes d±fferent 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).