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Old 28th June 2014
Lives for gear

Both the socket and chip will have a marking for where Pin 1 is. Sometimes it will be a "U" shaped cutout or a circle or a dot but there will be a marking of some kind so you know which way to put the IC chip back into it's socket. Watch out for static and if possible support under the socket while you press the chip back in as not to flex/bend the PCB board.