Intel SR1600UR Service Guide - Page 135

O=On; X=Off, Keyboard USB only - mouse

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Table 9. Diagnostic LED POST Code Decoder Diagnostic LED Decoder O=On; X=Off Checkpoint Upper Nibble MSB Lower Nibble LSB Description 8h 4h 2h 1h 8h 4h 2h 1h LED #7 #6 #5 #4 #3 #2 #1 #0 ATA/ATAPI/SATA 0x5Ah 0x5Bh X O X O O X OX X O X O O X OO SMBUS 0x5Ch 0x5Dh X O X O O OX X X O X O O OX O Local Console 0x70h 0x71h 0x72h X O O O X XXX X O O O X XXO X O O O X X OX Remote Console 0x78h 0x79h 0x7Ah X O O O O XXX X O O O O XXO X O O O O X OX Keyboard (USB only) 0x90h 0x91h 0x92h 0x93h 0x94h 0x95h O X X O X XXX O X X O X XXO O X X O X X OX O X X O X X OO O X X O X OX X O X X O X OX O Mouse (USB only) Resetting SATA bus and all devices Reserved for ATA Resetting SMBUS Reserved for SMBUS Resetting the video controller (VGA) Disabling the video controller (VGA) Enabling the video controller (VGA) Resetting the console controller Disabling the console controller Enabling the console controller Resetting the keyboard Disabling the keyboard Detecting the presence of the keyboard Enabling the keyboard Clearing keyboard input buffer Instructing keyboard controller to run Self Test (PS2 only) Intel® Server System SR1600UR Service Guide 117

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Intel
®
Server System SR1600UR Service Guide
117
ATA/ATAPI/SATA
0x5Ah
X
O
X
O
O
X
O
X
Resetting SATA bus and all devices
0x5Bh
X
O
X
O
O
X
O
O
Reserved for ATA
SMBUS
0x5Ch
X
O
X
O
O
O
X
X
Resetting SMBUS
0x5Dh
X
O
X
O
O
O
X
O
Reserved for SMBUS
Local Console
0x70h
X
O
O
O
X
X
X
X
Resetting the video controller (VGA)
0x71h
X
O
O
O
X
X
X
O
Disabling the video controller (VGA)
0x72h
X
O
O
O
X
X
O
X
Enabling the video controller (VGA)
Remote Console
0x78h
X
O
O
O
O
X
X
X
Resetting the console controller
0x79h
X
O
O
O
O
X
X
O
Disabling the console controller
0x7Ah
X
O
O
O
O
X
O
X
Enabling the console controller
Keyboard (USB only)
0x90h
O
X
X
O
X
X
X
X
Resetting the keyboard
0x91h
O
X
X
O
X
X
X
O
Disabling the keyboard
0x92h
O
X
X
O
X
X
O
X
Detecting the presence of the keyboard
0x93h
O
X
X
O
X
X
O
O
Enabling the keyboard
0x94h
O
X
X
O
X
O
X
X
Clearing keyboard input buffer
0x95h
O
X
X
O
X
O
X
O
Instructing keyboard controller to run
Self Test (PS2 only)
Mouse (USB only)
Table 9. Diagnostic LED POST Code Decoder
Checkpoint
Diagnostic LED Decoder
Description
O=On; X=Off
Upper Nibble
Lower Nibble
MSB
LSB
8h
4h
2h
1h
8h
4h
2h
1h
LED
#7
#6
#5
#4
#3
#2
#1
#0