I got a PS3 Slim a while back that I have been trying to rebuild. Initially I replaced the cooling fan because it was overheating. I also put in a new HD and started the process for installing the OS. This is where I hit a wall. I keep getting the "No Blu Ray Drive" error code. First I just replaced the laser tray and there was no change. Then I replaced the entire drive, still no change. All of my connections are secure. The only thing that happens when you power on the PS3 slim is that the laser twitches for about a half a second then nothing. Has anybody seen anything like this before? This unit has the drive controller on the motherboard, not the drive.