Error And Informational Messages; Post Codes And Countdown Codes - Gateway ALR 9200 Maintaining And Troubleshooting

170 Maintaining and Troubleshooting the Gateway ALR 9200 Server

Error and Informational Messages

When you turn on the system, POST displays messages that provide
information about the system. If a failure occurs, POST emits beep codes
that indicate errors in hardware, software, or firmware. If POST can display
a message on the video display screen, it causes the speaker to beep twice as
the message appears.

POST Codes and Countdown Codes

The BIOS indicates the current testing phase during POST after the video
adapter has been successfully initialized by outputting a 2-digit hex code to
I/O location 80h. If a port-80h ISA POST board is installed, it displays the
2-digit code on a pair of hex display LEDs. Hex codes and their meanings
are listed in Table 34.
Table 34: Port-80h Codes and Beep Codes
Port-80 Beep
Codes Codes
02
04
06
08
09
0A
0B
0C
0E
0F
10
11
12
14
16 1-2-2-3
18
1A
1C
20 1-3-1-1
22 1-3-1-3
24
28 1-3-3-1
2A
Error Descriptions
Verify Real Mode
Get processor type
Initialize system hardware
Initialize chipset registers with initial POST values
Set in POST flag
Initialize processor registers
Enable processor cache
Initialize caches to initial POST values
Initialize I/O
Initialize the local bus IDE
Initialize Power Management
Load alternate registers with initial POST values new
Restore processor control word during warm boot
Initialize keyboard controller
BIOS ROM checksum
8254 timer initialization
8237 DMA controller initialization
Reset Programmable Interrupt Controller
Test DRAM refresh
Test 8742 Keyboard Controller
Set ES segment register to 4GB
Autosize DRAM
Clear 512K base RAM