Intel DX79TO - Board Status Leds

Intel Desktop Board DX79TO Technical Product Specification
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Table 10. Board Status LEDs
Item in
Figure 7 LED Name LED Color
Supported
Modes Control Source
A OS Start Green On/Off/Flash BIOS
B Storage
Initialization
Green On/Off/Flash BIOS
C USB Initialization Green On/Off/Flash BIOS
D Option ROM
Initialization
Green On/Off/Flash BIOS
E Video
Initialization
Green On/Off/Flash BIOS
F Memory
Initialization
Green On/Off/Flash BIOS
G CPU Initialization Green On/Off/Flash BIOS
H Hard Drive
Activity
Blue On/Off Hard drive controller(s)
I CPU Hot Red On/Off Discrete circuit
J VR Hot Red On/Off Discrete circuit
K Watch Dog
Fire/Back to
BIOS
Red On/Off/Flash BIOS
L +5 V standby
power indicator
Green On/Off Power Supply
M CPU Error Red On/Off Processor
N Power Fault LED Red On/Off Power Supply