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37 Service Guide
Diagnostic LED
Decoder
G=Green, R=Red,
A=Amber
Hi Low
Description
9Ah A Off G R
Enable Interrupts 0,1,2: Checking the extended keyboard, keyboard ID, and
NUM Lock key next. Issuing the keyboard ID command next.
9Ch
A
G
Off
R
Init FDD Devices. Report second set of POST errors To Error messager.
9Eh
A
G
G
R
Extended background memory test end.
A0h R Off
R Off
Prepare And Run Setup: Error manager displays and logs POST errors. Wait for
user input for certain errors. Execute setup.
A2h
R
Off
A
Off
Set Base Expansion Memory Size.
A4h
R
G
R
Off
Program chipset setup options, build ACPI Tables, build INT15h E820h table.
A6h
R
G
A
Off
Set Display Mode.
A8h
A
Off
R
Off
Build SMBIOS table and MP tables.
AAh A Off
A Off
Clear
video
screen.
ACh
A
G
R
Off
Prepare USB controllers for operating system.
AEh
A
G
A
Off
One Beep to indicate end of POST. No beep if silent boot is enabled.
000h
Off
Off
Off
Off
POST completed. Passing control to INT 19h boot loader next.
Summary of Contents for EXPRESS5800/120Rd-1
Page 1: ... EXPRESS5800 120Rd 1 S e r v i c e G u i d e ...
Page 3: ...Revision Record Edition COMP Date Page Description 1 0 2003 1 16 First Edition ...
Page 4: ...II Service Guide ...
Page 18: ...XVI Service Guide ...
Page 52: ...32 Service Guide 12 Appendix 12 1 Block Diagram System Block Diagram ...
Page 53: ...33 Service Guide Power Block Diagram ...
Page 67: ...47 Service Guide Figure 12 10 CRS Cable xx ...
Page 68: ......
Page 69: ......
Page 70: ... ...