I have the same problem on my A1150 Mac Book Pro with a grey screen at boot up after the apple logo, even after a SMC reset, and PRAM reset, same issue, but I can boot using a safe boot, although the mouse has a small checkered box once I am in OS X 10.6 Snow Leopard. I ran disk utility in Safe boot from another disk partition with another copy of OS X 10.6, and found no problems with bad blocks / inodes on the hard disk, or disk permissions issue's.
http://support.apple.com/en-us/HT201262
This 2006 Mac Book Pro computer was given to me by an Apple consultant who told me that it would only boot into a black screen so his customer gave it to him when he upgraded him to a new Mac Book pro, it also had no video using an external monitor.
I googled the black screen issue, and found a you tube video on "How to Bake My Mac".
http://computers.tutsplus.com/tutorials/...
I thought what do I have to lose, a new logic board would cost more then what these sell for on Ebay, so I thought I would see if this was a hoax or would actually work, I also wrote to mythbusters first and posteed on their facebook page asking them if this would work, but after several weeks with out a reply, I decided to use Ifixit to see how to take it apart, and removed the logic board, which has an embedded ATI 1600 GPU. I triple wrapped the logic board in foil, exposing just the GPU chip, and placed it in the oven to re-flow the GPU chip solder, after it cooled down I put the Mac Book Pro back together and installed SMC fan control to raise the speed of the cooling fans in hopes to keep the CPU, and GPU cooler, and it's been working for several months with out issue, until this past week.
Could this be an issue with the PRAM battery causing the grey screen, or possibly the GPU needs to be re-balled with a BGA reworok station for a more permanent repair?
Since it's a 2006 Intel Core Duo, and not a Core2 Duo CPU, it's just not worth buying a new logic board or paying the $150.00 to have it reballed.
Jose F. Medeiros
The Unemployed IT guy!
http://www.linkedin.com/in/josemedeiros
2条评论
As suggested, I tried the "First Aid" "Repair Disk" from another mac computer and when I re-installed the HDD in my MacBook Pro it does the same old thing. Any more suggestions?
由 Don 完成的
I removed the hard drive and attached it to my Mac Pro A1186 tower using USB and it boots perfectly. I then attached it to my Mac Mini A1283 and it booted, no problem. I ran repair disk and permissions repair various times on the Mac Pro and re-installed it into the A1150 and obtained the same result (a light blue/white screen after the Apple Logo and progress monitor). I do have a factory retail install disks for 10.4 Tiger, 10.5 Leopard, and 10.6 Snow Leopard. The OS currently installed on the Hard Drive is OS X 10.6.8 Snow Leopard. Do you suggest that I try it with OS X 10.5.8 Leopard? I can very easily do so but I thought that the All50 should run Snow Leopard without any problem. I really hope that I don't have to revert all the way back to Tiger even though it's a good OS I prefer Leopard or Snow Leopard. I also tried it with a new Hard Drive with the same OS 10.6.8 installed and obtained the same result. Will a bad Logic Board give this kind of symptoms?
由 Don 完成的