Please choose the correct solution to the question: To replace the power supply on a PS3.

Solution1: Upon opening the system, the power supply is to the left in the front. Unscrew the screws holding it down and remove it, then insert and screw down the new one.

Solution2: Upon opening the system, the power supply is to the left in the back. Unscrew the screws holding it down and remove it, then insert and screw down the new one.

Answer format: solution1/solution2