Technical Product Specification for DZ77GAL-70K

Product Description
45
Table 10. Board Status LEDs
Callout
Figure 10 LED Name
LED
Color
Supported
Modes
Control
Source Description
A Hard Drive
Activity
Blue On/Off Hard drive
controller(s)
This LED blinks to indicate the
activity of SATA drives connected
to the board.
B CPU Hot Red On/Off Discrete circuit The LED indicates an elevated
temperature on the processor
that could affect board
performance
C VR Hot Red On/Off Discrete circuit This LED indicates an elevated
temperature in the processor
voltage regulator circuit that
could affect board performance.
D Watch Dog
Fire / Back to
BIOS
Red On/Off/Flash BIOS 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 CPU
Initialization
Green On/Off/Flash BIOS 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 On/Off/Flash BIOS 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 On/Off/Flash BIOS 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 On/Off/Flash BIOS 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 On/Off/Flash BIOS This LED will flash when the hard
drive initialization activity starts.
Then the LED will stay on when
hard drive initialization is
complete.
J Option ROM
Initialization
Green On/Off/Flash BIOS This LED will flash when the
option ROM activity starts. Then
the LED will stay on when option
ROM initialization is complete.
K Operating
System Start
Green On/Off/Flash BIOS Just before BIOS transfers
control to the operating system,
this LED will light and stay on.