Table of Contents
Advertisement
Appendix B: POST Code Diagnostic LED Decoder
Diagnostic LED Decoder
Checkpoint
Upper Nibble
MSB
8h
4h
2h
LED
#7
#6
#5
0x57h
X
O
X
USB
0x58h
X
O
X
0x59h
X
O
X
ATA/ATAPI/SATA
0x5Ah
X
O
X
0x5Bh
X
O
X
SMBUS
0x5Ch
X
O
X
0x5Dh
X
O
X
Local Console
0x70h
X
O
O
0x71h
X
O
O
0x72h
X
O
O
Remote Console
0x78h
X
O
O
0x79h
X
O
O
0x7Ah
X
O
O
Keyboard (only USB)
0x90h
O
X
X
0x91h
O
X
X
0x92h
O
X
X
0x93h
O
X
X
0x94h
O
X
X
0x95h
O
X
X
Mouse (only USB)
0x98h
O
X
X
0x99h
O
X
X
0x9Ah
O
X
X
0x9Bh
O
X
X
Fixed Media
0xB0h
O
X
O
0xB1h
O
X
O
0xB2h
O
X
O
0xB3h
O
X
O
Removable Media
0xB8h
O
X
O
0xB9h
O
X
O
0xBAh
O
X
O
0xBCh
O
X
O
Boot Device Selection (BDS)
0xD0
O
O
X
0xD1
O
O
X
0xD2
O
O
X
0xD3
O
O
X
0xD4
O
O
X
0xD5
O
O
X
0xD6
O
O
X
0xD7
O
O
X
0xD8
O
O
X
64
O = On, X=Off
Lower Nibble
LSB
1h
8h
4h
2h
1h
#4
#3
#2
#1
#0
O
X
O
O
O
O
O
X
X
X
O
O
X
X
O
O
O
X
O
X
O
O
X
O
O
O
O
O
X
X
O
O
O
X
O
O
X
X
X
X
O
X
X
X
O
O
X
X
O
X
O
O
X
X
X
O
O
X
X
O
O
O
X
O
X
O
X
X
X
X
O
X
X
X
O
O
X
X
O
X
O
X
X
O
O
O
X
O
X
X
O
X
O
X
O
O
O
X
X
X
O
O
X
X
O
O
O
X
O
X
O
O
X
O
O
O
X
X
X
X
O
X
X
X
O
O
X
X
O
X
O
X
X
O
O
O
O
X
X
X
O
O
X
X
O
O
O
X
O
X
O
O
O
X
X
O
X
X
X
X
O
X
X
X
O
O
X
X
O
X
O
X
X
O
O
O
X
O
X X
X
O
X
O
O
X
O
O
X
O
O
X
O
O
O
O
X
X
X
O
Intel order number E76293-003
Intel® Server System SR2612UR TPS
Reserved for PCI bus
Resetting USB bus
Reserved for USB devices
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 (PS/2 only)
Resetting the mouse
Detecting the mouse
Detecting the presence of mouse
Enabling the mouse
Resetting fixed media device
Disabling fixed media device
Detecting presence of a fixed media device (hard drive detection,
and so forth)
Enabling / configuring a fixed media device
Resetting removable media device
Disabling removable media device
Detecting presence of a removable media device (CD-ROM
detection, and so forth)
Enabling / configuring a removable media device
Trying to boot device selection 0
Trying to boot device selection 1
Trying to boot device selection 2
Trying to boot device selection 3
Trying to boot device selection 4
Trying to boot device selection 5
Trying to boot device selection 6
Trying to boot device selection 7
Trying to boot device selection 8
Description
Revision 1.3
Advertisement
Table of Contents
