Unit Identifier Switch
A Unit Identifier (UID) switch and an LED indicator are located on the motherboard. The UID switch is located at UID_SW on the rear I/O panel. The UID LED (UID_LED1) is located next to the UID Switch. When you press the UID switch, the UID LED will be turned on. Press the UID switch again to turn off the LED indicator. The UID indicator provides easy identification of a system unit that may be in need of service.
For a detailed diagram of the X14SAZ-TLN4F motherboard, see the layout under Motherboard Quick Reference.
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1
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GND
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2
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GND
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3
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Button In
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4
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Button In
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