CHAPTER 2
HARDWARE INSTALLATION
2-27
D-LED
1 2 3 4
FUNCTION
POSSIBLE PROBLEM/VOICE CONTEXT
0 0 0 0
System Power ON
The processor might be damaged or not installed properly**
This will start the BIOS Initialization
1 0 0 0
Early Chipset Initialization
Please check local vendor**
0 1 0 0
Memory Detection Test
The memory module might be damaged or not
Testing Onboard memory size
installed properly**
1 1 0 0
Decompressing BIOS image to
Please check local vendor**
RAM for fast booting
0 0 1 0
Initializing Keyboard Controller
The keyboard might be damaged or not plug-in properly**
1 0 1 0
Test shadow memory
Please check local vendor**
0 1 1 0
Processor Initialization
Please check local vendor**
This will show information regarding
the processor e.g. brand name, system
bus, etc.,
1 1 1 0
Testing RTC (Real Time Clock)
Low lithium battery**
0 0 0 1
Initializing Video Interface
The VGA card might be damaged or not installed properly**
This will start detecting CPU clock,
checking type of video onboard. Then
detect and initialize the video adapter
1 0 0 1
BIOS sign ON
Please check local vendor**
This will start showing information about
logo, processor, brand name, etc.,
0 1 0 1
Testing base and Extended memory
Please check local vendor**
Testing base memory from 240K to 640K
and extended memory above 1MB using
various patterns
1 1 0 1
Assign Resources to all ISA
Please check local vendor**
0 0 1 1
Initializing Hard Drive Controller
Check IDE cable for proper installation**
This will initialize IDE drive and
controller
1 0 1 1
Initializing Floppy Drive Controller
The Floppy Drive Cable might not be installed*
This will initialize Floppy Drive and
controller
0 1 1 1
Assign IRQs to PCI devices
Stop
1 1 1 1
Operating System Booting
System Available**
1 = GREEN 0 = RED
** D-LED voice context
* No D-LED voice function
Diagnostic LED & Voice function
Note: The system D-LED will hang when problem occurs during operation
