Acer RC111 - Manual (Page 96)

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5 Recover the home server.
(1) Connect the USB pen drive with the server restore image
inside and plug into USB port on server.
(2) Press the power button to turn on the system, after you hear
the beep sound, quickly insert a paperclip into the Recovery
pin hole at the back of the system. The system will reboot.
Please wait till the "i" LED blinks purple.
6 Put the Server Recovery DVD in a client PC and run the server
recovery utility, be sure to select Skip creating the bootable USB
flash device.