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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
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
JPW1
KB/MS
Fan6/CPU Fan
J28
USB 1/2
J15
E7230
J31
Mukilteo
(North Bridge)
JG1
GLAN1
DIMM 1A
DIMM 2A
GLAN2
DIMM 1B
DIMM 2B
LAN
Slot6
SXB -E1 PCI-Ex8
CTRL
2
J I
C 1
J I
2
C 2
LAN
J P L 1
VGA
CTRL
J P L 2
B
CTRL
L E 3
L E 4
S I/O
C
COM2
JPG1
J 9
Slot1
PCI 32 Bit/33 MHz
USB3/4 USB5/6
J 4
IDE
J27
J30
Printer
Floppy
(*Compact Flash Card only)
Appendix A
BIOS POST Messages
Action
or installing components
LE3 Indicator
Green
On
Green
Flash
Green
On
Green
Flash
Off
N/A
JPW2
Fan1
8-pin PWR
Pentium Dual
Core CPU
LGA 775
DIMM 1
DIMM 2
DIMM 3
DIMM 4
Fan2
PCI-X 133 MHz
Fan3
J W D
JPF
Battery
BIOS
PXH-V
Buzzer
SATA3
SATA2
ICH7R
SATA1
(South Bridge)
JBT1
JWOR
SATA0
JL1
J 3
IDE (Primary)
A
A-1
Appendix A: BIOS POST Messages
Error Messages
Memory Module Errors
VGA Errors
LE4 Indicator
Yellow
On
Yellow
Flash
Yellow
Flash
Yellow
On
Off
N/A
A. LE1
B. LE3
C. LE4
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