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Intel Desktop Board DZ68BC Product Guide
28
Board Status LEDs
The Desktop Board includes thirteen LEDs that allow you to monitor the board’s
progress through the BIOS Power-on Self-Test, Hard Drive activity, processor and
voltage regulator temperature, and certain error conditions. At initial power on, all the
LEDs are off. Figure 6 shows the location the LEDs and Table 5 briefly describes their
fun
ction.
Table 5. Board Status LEDs
Item/Callout
in Figure 6
Acti
vity
LED
Color
Description
A Hard Drive Activity Blue This LED blinks on and off with hard
drive activity.
B Processor Hot Red When lit, this LED indicates an elevated
temperature on the processor that
could affect performance.
C Voltage Regulator Hot Red When lit, this LED indicates an elevated
temperature in the processor voltage
regulator circuit that could affect
performance.
D Watch Dog Timer Fire/
Back to BIOS
Red When the watch dog timer fires to reset
the board, this LED will flash.
In addition, this LED will light and stay
on when the Back to BIOS button has
been pressed.
E Processor Initialization Green This LED will flash when the processor
initialization activity starts. Then the
LED will stay on when processor
initialization is complete.
F Memory Initialization Green This LED will flash when the memory
initialization activity starts. Then the
LED will stay on when memory
initialization is complete.
G Video Initialization Green This LED will flash when the video
initialization activity starts. Then the
LED will stay on when video
initialization is complete.
H USB Initialization Green This LED will flash when the USB
initialization activity starts. Then the
LED will stay on when USB initialization
is complete.
I Hard Drive Initialization Green This LED will flash when the hard drive
activity starts. Then the LED will stay
on when hard drive initialization is
complete.
continued