I bought a used ps3 on ebay. The blu ray drive is not working. When I opened up the ps3, the power cable is there. However, I do not see the cable to connect the blu ray drive to the motherboard. There is a small clip by the power cable but I thought there is supposed to be a larger clip also. What is this small clip for? Is the large clip part of the drive or is it part of the controller board? If it is part of the drive, I can just replace the drive? If it is part of the controller board, is it possible to replace?