36 Service Guide
Diagnostic LED
Decoder
G=Green, R=Red,
A=Amber
Hi Low
Description
5Eh G A G R
Init PCI devices and motherboard devices. Pass control to video BIOS. Start
serial console redirection.
60h
Off
R
R
Off
Initialize memory test parameters.
62h Off R A Off
Initialize AMI display manager Module. Initialize support code for headless
system if no video controller is detected.
64h
Off
A
R
Off
Start USB controllers in chipset.
66h
Off
A
A
Off
Set up video parameters in BIOS data area.
68h
G
R
R
Off
Activate ADM: The display mode is set. Displaying the power-on message next.
6Ah
G
R
A
Off
Initialize language module. Display splash logo.
6Ch
G
A
R
Off
Display Sign on message, BIOS ID and processor information.
6Eh G A A Off
Detect
USB
devices.
70h Off
R R R Reset
IDE
Controllers.
72h
Off
R
A
R
Displaying bus initialization error messages.
74h Off A R R
Display Setup Message: The new cursor position has been read and saved.
Displaying the Hit Setup message next.
76h
Off
A
A
R
Ensure Timer Keyboard Interrupts are on.
78h
G
R
R
R
Extended background memory test start.
7Ah
G
R
A
R
Disable parity and NMI reporting.
7Ch G A R R
Test 8237 DMA Controller: The DMA page register test passed. Performing the
DMA Controller 1 base register test next.
7Eh G A A R
Init 8237 DMA Controller: The DMA controller 2 base register test passed.
Programming DMA controllers 1 and 2 next.
80h R Off Off Off
Enable Mouse and Keyboard: The keyboard test has started. Clearing the output
buffer and checking for stuck keys. Issuing the keyboard reset command next.
82h R Off G Off
Keyboard Interface Test: A keyboard reset error or stuck key was found. Issuing
the keyboard controller interface test command next.
84h R G Off Off
Check Stuck Key Enable Keyboard: The keyboard controller interface test
completed. Writing the command byte and initializing the circular buffer next.
86h R G G Off
Disable parity NMI: The command byte was written and global data initialization
has completed. Checking for a locked key next.
88h A Off Off Off Display
USB
devices.
8Ah A Off G Off
Verify RAM Size: Checking for a memory size mismatch with CMOS RAM data
next.
8Ch
A
G
Off
Off
Lock out PS/2 keyboard/mouse if unattended start is enabled.
8Eh A G G Off
Init Boot Devices: The adapter ROM had control and has now returned control to
BIOS POST. Performing any required processing after the option ROM returned
control.
90h
R
Off
Off
R
Display IDE mass storage devices.
92h
R
Off
G
R
Display USB mass storage devices.
94h
R
G
Off
R
Report the first set of POST Errors To Error Manager.
96h R G G R
Boot Password Check: The password was checked. Performing any required
programming before Setup next.
98h A Off Off R
Float Processor Initialize: Performing any required initialization before the
coprocessor test 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: ... ...