Acer AB460 F1 - Manual (Page 583)

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Note: This only resets the username and password; it does not
affect the Acer switch login to Acer Smart Blade Manager.
The gigabit Pass Thru module has same UI as the Acer switch, excluding
Acer switch configuration and Error LED. They share the same position
in the Acer Blade Server enclosure.
Voltage
Shows the current Acer switch voltage levels for the 1.25 V and 2.5 V
voltages.