Gateway 995 995 Series Server User Guide - Page 134

Boot process codes, Beeps, Reason

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Chapter 6: Troubleshooting Boot process codes The table below lists Port-80 codes and explanations displayed during the boot process. Not all codes are associated with an audio tone (beep). The check point (CP) column lists the message's check point as seen by a port 80h card. CP Beeps 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 Reason 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 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 4 GB 128 www.gateway.com

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128
Chapter 6: Troubleshooting
www.gateway.com
Boot process codes
The table below lists Port-80 codes and explanations displayed during the boot
process. Not all codes are associated with an audio tone (beep). The check point
(CP) column lists the message’s check point as seen by a port 80h card.
CP
Beeps
Reason
02
Verify Real Mode
04
Get Processor type
06
Initialize system hardware
08
Initialize chipset registers with initial POST
values
09
Set in POST flag
0A
Initialize Processor registers
0B
Enable Processor cache
0C
Initialize caches to initial POST values
0E
Initialize I/O
0F
Initialize the local bus IDE
10
Initialize Power Management
11
Load alternate registers with initial POST
values
12
Restore Processor control word during
warm boot
14
Initialize keyboard controller
16
1-2-2-3
BIOS ROM checksum
18
8254 timer initialization
1A
8237 DMA controller initialization
1C
Reset Programmable Interrupt Controller
20
1-3-1-1
Test DRAM refresh
22
1-3-1-3
Test 8742 Keyboard Controller
24
Set ES segment register to 4 GB