Display (LED 2-3-4-5) | BIOS operation |
Red - Red - Red - Red | Power on, starting BIOS |
Red - Red - Red - Green | Early chipset initialisation |
Red - Red - Green - Red | Memory detection test. |
Red - Red - Green - Green | Decompressing BIOS image to RAM for fast booting |
Red - Green - Red - Red | Initialising keyboard controller |
Red - Green - Red - Green | Test shadow RAM |
Red - Green - Green - Red | Processor initialisation |
Red - Green - Green - Green | Testing RTC |
Green- Red - Red - Red | Initialising video interface |
Green - Red - Red - Green | BIOS sign on |
Green - Red - Green - Red | Testing base and extended memory |
Green - Red - Green - Green | Assign resource to all ISA |
Green - Green - Red - Red | Initialising hard drive controller |
Green - Green - Red - Green | Initialising floppy drive controller |
Green - Green - Green - Red | Assign IRQs to PCI devices |
Green - Green - Green - Green | Booting operating system |