Hardware Change ps3 optical group

[luka]

Hi to all, since yesterday my 80gb ps3 not read any kind of disks after freeze when playng infamous 2 and when i inster a disk i heard that not spinning

I want to try to change the optical group with all the mech

the 80 gb pal cechl04 have 410aca right?

i can be sure that the problem is the optical group or can be anything else?

Thanks