Chosen Solution
Hello to all, My Mac Mini mid-2011 with Radeon HD 6630M has the same problem that the Imac and Macbook in the same generation. Indeed it shows me white or blue lines or a black screen. I Resets the PRAM, disconnect the mac … same problem. I launched an Apple hardware test and then I got the following message: 4HDD / 11/40000000: SATA (0.0) When I remove the hard drive. I still have the same problem on the screen. And I have no error with the Apple hardware test! This one can not manage this problem I think. Do you think Apple may obtain warranty for this problem? Thank you Regards,
Before throwing in the towel lets see if we can get this system working. First I would start by replacing the RAM modules.The Radeon HD 6630M also uses system RAM besides the onboard dedicated 256 GB of VRAM. Make sure you are using 1333 MHz PC3-10600 DDR3 SO-DIMMs. You also appear to have a HD issue as well here. Can you give us the make and model of the drive so we can check it out. You may also want to check your systems firmware make sure its at least at the level listed here: About EFI and SMC firmware updates for Intel-based Mac computers.
