| D-LED |
Description |
Cause/Solution |
 |
System power on; begin BIOS initialization |
Processor not setup correctly or damaged; possible bad onboard battery/Replace CPU and/or battery |
 |
Chipset initialization |
Possible damaged chipset/Replace system board |
 |
Memory detection test; testing onboard memory size |
Memory not installed correctly or bad memory module/Check or replace memory |
 |
Decompressing BIOS for fast boot |
Possible damanged BIOS chip/Replace or reflash BIOS |
 |
Initializing keyboard controller |
Bad keyboard or controller/Replace keyboard or system board |
 |
Testing shadow RAM; read/write shadow RAM area |
N/A |
 |
CPU initialization; display CPU type, bus type, etc. |
N/A |
 |
Testing real time clock (RTC) |
Low onboard lithium battery/Replace battery |
 |
Initializing video interface, detect CPU clock speed, initialize video adapter |
CPU speed not set correctly/Clear CMOS and reset CPU speed in BIOS |
 |
BIOS sign on, display CPU speed |
N/A |
 |
Testing base and extended memory |
Memory not installed correctly or bad memory module/Check or replace memory |
 |
Assigning resource to ISA slots |
N/A |
 |
Initializing IDE controller and HDD |
Possible bad IDE cable, HDD, or controller/Replace cable, HDD, or system board |
 |
Initializing floppy controller |
Possible bad floppy cable, drive, or controller/Replace cable, drive, or system board |
 |
Assigning IRQ to PCI devices |
N/A |
 |
Operating system booting |
N/A |