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Checkpoint
MSB
8h
LED
#7
Fixed Media
0xB0h
1
0xB1h
1
0xB2h
1
0xB3h
1
Removable Media
0xB8h
1
0xB9h
1
0xBAh
1
0xBCh
1
Boot Device Selection (BDS)
0xD0
1
0xD1
1
0xD2
1
0xD3
1
148
Table 14. Diagnostic LED POST Code Decoder
Diagnostic LED Decoder
1 = On, 0= Off
Upper Nibble
4h
2h
1h
#6
#5
#4
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
1
0
1
1
0
1
1
0
1
1
0
1
Lower Nibble
LSB
8h
4h
2h
1h
#3
#2
#1
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
1
0
0
0
1
0
0
1
1
0
1
0
1
1
0
0
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
®
Intel
Server System SR1695GPRX Service Guide
Description
#0
Resetting fixed media
device
Disabling fixed media
device
Detecting presence of a
fixed media device (IDE
hard drive detection, and
so on)
Enabling / configuring a
fixed media device
Resetting removable
media device
Disabling removable
media device
Detecting presence of a
removable media device
(IDE CDROM detection,
etc.)
Enabling / configuring a
removable media device
Entered the Boot Device
Selection phase (BDS)
Return to last good boot
device
Set up boot device
selection policy
Connect boot device
controller
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