
Viglen CX135 User Guide – Version 1.0
75
A2
DS7/DS8 LED Post Codes
LED Indicators
Description/Message
DS7 DS8
On On
PWR
On
On
Off
SPD Read OK
Off On
Memory
Size-OK
Off Off
Starting
Bus
Initialization
Appendix B: BIOS POST Checkpoint Codes
When AMIBIOS performs the Power On Self Test, it writes checkpoint codes to I/O
port 0080h. If the computer cannot complete the boot process, diagnostic equipment
can be attached to the computer to read I/O port 0080h.
B-1 Uncompressed Initialization Codes
Checkpoint Code
Description
D0h
The NMI is disabled. Power on delay is starting. Next,
the initialization code checksum will be verified.
D1h
Initializing the DMA controller, performing the keyboard
controller BAT test, starting memory refresh, and
entering 4 GB flat mode next.
D3h
Starting memory sizing next.
D4h
Returning to real mode. Executing any OEM patches
and setting the Stack next.
D5h
Passing control to the uncompressed code in shadow
RAM at E000:0000h. The initialization code is copied
to segment 0 and control will be transferred to segment
0.
Summary of Contents for CX135
Page 19: ...Viglen CX135 User Guide Version 1 0 18 Figure 7 Internal Chassis View ...
Page 20: ...Viglen CX135 User Guide Version 1 0 19 Figure 8 Serial ATA Backplane ...
Page 21: ...Viglen CX135 User Guide Version 1 0 20 Figure 9 Hard Disk Drive Connectors ...
Page 22: ...Viglen CX135 User Guide Version 1 0 21 Figure 10 Ultra 320 SCSI Backplane ...
Page 23: ...Viglen CX135 User Guide Version 1 0 22 Figure 11 80 pin SCA Connectors ...
Page 77: ...Viglen CX135 User Guide Version 1 0 76 B 2 Bootblock Recovery Codes ...
Page 78: ...Viglen CX135 User Guide Version 1 0 77 B 3 Uncompressed Initialization Codes ...
Page 79: ...Viglen CX135 User Guide Version 1 0 78 ...
Page 80: ...Viglen CX135 User Guide Version 1 0 79 ...
Page 81: ...Viglen CX135 User Guide Version 1 0 80 ...
Page 82: ...Viglen CX135 User Guide Version 1 0 81 ...
Page 88: ...Viglen CX135 User Guide Version 1 0 87 Appendix D Notes ...
Page 89: ...Viglen CX135 User Guide Version 1 0 88 ...
Page 90: ...Viglen CX135 User Guide Version 1 0 89 ...