Locate a Failed DIMM (LEDs)
This procedure describes how to identify a faulty DIMM using a button and LEDs on the motherboard.
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Press a button on the motherboard to identify a faulty DIMM.
Pressing this button activates the amber LED at the end of each DIMM slot that contains a faulty DIMM.
An LED next to the button lights when the button is pressed to show power is available to activate the LEDs. Press the button briefly to avoid using up the stored power.
