Hi everybody. I´m new to this forum and at first. Sorry for my terrible English. :-/ I was very interested in the PowerPCs Mac and owned a few. Now i got Powerbook G4 17" with 1.5Ghz from a good friend of mine. Its in pretty good shape and after knowing, that it is possible to upgrade it with an mSata SSD, i done it. After installing an DeLock IDE-->mSata with an Transcend SSD 128GB i got a litte noisy Problem. The System is really responsive and silent, but i can hear some crazy Sounds... sounds like an HDD. So, when the disk is read and write to. Very interesting. I recorded it with my iPhone... So, does anybody have the problem or heard of it? It isn´t really loud, but makes my confusing. :-( Oh, i checked the Fans. They seems to work normal. After all, i also replaced the Thermal Past. But doesn´t solved the Problem. Maybee it would be an good idea, to try out the older HDD? ThX for the help guys.