PlayStation 3 PRAM Battery Replacement

Use the tip of a spudger to remove the black rubber screw cover from the side of the PS3.

Remove the single 8.5 mm T10 Security Torx screw from the smart plate.

Pull the smart plate toward the hard drive bay, then lift it off the body of the PS3.

Remove the following seven screws:

Six 52 mm Phillips screws

One 30 mm Phillips screw

Lift the top cover from its rear edge and rotate it toward the front of the PS3.

Remove the top cover.

Disconnect the Blu-ray power cable from the motherboard.

Lift the Blu-ray drive from the edge nearest the power supply and rotate it away from the chassis enough to access its ribbon cable.

Use your fingernail to flip up the retaining flap on the Blu-ray ribbon cable socket.

Pull the ribbon cable out of its socket.

Remove the Blu-ray drive from the PS3.

Pull the control board ribbon cable straight up and out of its socket on the motherboard.

Remove the two 12 mm Phillips screws securing the control board to the lower case.

Remove the control board and its attached cable from the PS3.

Remove the following eight screws securing the motherboard assembly to the lower case:

Seven 12 mm Phillips screws (ph2)

One 30 mm Phillips screw

Remove the control board bracket.

Use the flat end of a spudger to pry the hard drive bay cover away from the lower case.

Remove the hard drive bay cover.

Lift the motherboard assembly out of the lower case.

Disconnect the PRAM battery from the motherboard.

Rotate the PRAM battery counter-clockwise and remove it from the chassis.