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BIOS POST Messages and LED Indicators
During the Power-On Self-Test (POST), the BIOS will check for problems. If a
problem is found, the BIOS will activate an alarm, turn on LED indicators, or display
a message.
A-1 BIOS POST Beep Codes
Beeps
1 long beep-pause-1 long beep
1 long beep + 2 short beeps
1 long continuous beep (OH LED on)
A-2 LE1: Standby PWR LED
LE1:
5V Standby PWR LED
On Standby PWR On Turn off the PWR supply before removing
A-3 LE3/LE4 System Debug Indicators
State
PWR-ON to POST
ECC Memory Testing
PCI Bus Initializing
VGA Initializing
System Normal
(After POST)
A-4 LED Locations
KB/MS
USB 1/2
LAN
CTRL2
(*LN2+)
LAN
CTRL1
JLAN1
JLAN2
(*LN2+)
S I/O
Slot6
VGA
CTRL
Slot5
JPG1
VGA
Slot4
Memory
COM2
Appendix A
Action
or installing components
LE3 Indicator
Green
On
Green
Flash
Green
On
Green
Flash
Off
N/A
Fan6
PWR SMB
CPU
Fan
Intel
3000
North Bridge
DIMM 1A
DIMM 2A
DIMM 1B
DIMM 2B
JI
C2
JI
2
C1
2
IPMI
PCI-E x8
SBX: PCI-33 MHz
J 8
JWOR
B
Battery
PCI-E x4
J10
BIOS
SPKR
C
A
PCI-33 MHz
PCI1
USB3/4
USB5/6
Floppy
A-1
Appendix A: BIOS POST Messages
Error Messages
Memory Module Errors
VGA Errors
System Overheat
LE4 Indicator
Yellow
On
Yellow
Flash
Yellow
Flash
Yellow
On
Off
N/A
Fan1
PWR Fault
8-pin PWR
CPU
LGA 775
Fan2
Fan3
JL1
ICH7R
South Bridge
JBT1
SATA3
SATA1
SATA0 SATA2
A. LE1
B. LE3
C. LE4
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