Review on Komputerbay 16GB (4X 4GB) DDR2 PC2-5300F 667MHz CL5 ECC Fully Buffered FB-DIMM (240 PIN) 16 GB with Heatspreaders for Apple Mac Computers by Marty Orthodontics

This RAM is terrible. I ordered a 16GB package (4x 4GB) for my Mac Pro. The first set had a bad RAM stick that prevented my computer from restarting. I returned the package and received a new 16GB package but this time 3 of the 4 RAM sticks were defective and the fans were running at very high speed like a plane taking off. I removed the faulty RAM and the computer works fine again. Stay away from Computerby. Just check their reviews online