Greetings. I have a 1.42GHZ Power Mac G4 MDD I recently got and decided to expand computer to the most I can. The RAM has been maxed out to 2GB and I decided to put a GeForce 4Ti since that's the best card to use with OS 9 + OS X. I used up all of the PCI slots and one of the cards I added is a Sonnet Tempo SATA card so I can easily use an SSD. I ordered a Samsung 840 EVO 250GB with a 3.5 bracket and a 1TB WD Black SATA hard drive. Both of these drives are installed in my G4 with the SATA card. I installed OS X Leopard and OS 9 into my Samsung SSD. In my G4, I have a total of 4 hard drives. 2 are the SATA drives mentioned above and 2 are the stock IDE drives that came with the system. However, I have been experiencing issues with using OS X. After using the computer for a while, the computer will not operate normally. Doing any app installations after using the computer for a while would stall. Shut down, restart, and log out would also stall and I can't shut down unless I hold down the power button. I made sure the cables are connected properly, but I still experience the same issue. Note that this problem only happens after using the computer for about 40 minutes. Is this a problem with the SSD? Does anyone use a combination of a SATA card and a Samsung 840 EVO?