Intel Desktop Board DZ77BH-55K Technical Product Specification
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1.12 Board Status LEDs
The Desktop Board provides eight LEDs that allow you to monitor the board’s progress
through the BIOS Power-on Self-Test. At initial power on, all the LEDs are off. When
the BIOS starts an activity such as memory initialization, the corresponding LED starts
flashing. Once the activity has completed, the LED will remain on. Three additional
LEDs can be used to monitor board functions such as processor and voltage regulator
overheating and hard drive activity. Refer to Table 13 for a description of all the LEDs.
Figure 9 shows the location of the status LEDs.
Figure 9. Location of Board Status LEDs
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