Rimshots, I have learned the hard way that resetting the RAM while keeping it in the machine does not make any difference. Did the same with my two 8GB DIMMs and it didn't help at all. Try to physically remove one of the two DIMMs and see what happens, in case "it" comes back, try to remove the other one. In my case, it worked and is still working (day 9 today). Good luck!
it seems that i have the same issue
i have a macbook pro 15" early 2011 2.0ghz i7 with ati radeon 6490M graphic processor
my problem started a week ago when i used my mac for graphic use software when all of a sudden the screen started to split in half and my mac freezes.
and after that the mac keeps freezing in startups with the gray screen
when i tried to safe boot, my mac occasionally comes up with a blue screen
i've tried all the recomended suggestion through the internet.
- safe mode
- fsck -fy
- reinstall ing osx
- reseting NVRAM
i even tried to clean the memories and dust by removing the cover and i havent changed my RAM
my mac book was being used on common uses and never been droped
after reinstaling OSX from the box my first thought that it solve the problem.... but after finsihed installing nothing changed and my macbook keeps freezing on startups and wont budge
it's quite a shock that a lot of people have the same issues. and to know tha my "pro" apple device just died without any warnings
Try letting it sit on the grey screen for 15 to 20 min with fans blowing, then press the power button to force a shutdown and start up again - works for me, only it's gotten bad enough that I have to repeat this a few times until it finally starts up.
I then switch to integrated GPU via gfxCardStatus and don't let it fall asleep. It seems to work like that for browsing and email etc., but still freezes every so often, especially when I forget and use apps like Photoshop, iPhoto, etc. that usually force a GPU switch.
ive already tried gfx card read status and uses integrated card but while browsing on the internet my mac freezes. and when i tried to startup my mac gve the "blue stripe screen" and i haven't manage to access my osx since.
i've already tried to reinstall the osx and boot from the dvd and after i've finished reinstalling my mac freezes on the apple logo screen.
On the other thread (was deleted) you asked about gfxcardstatus
Once you manage de boot the computer (migh takes dozens of tries to go past the login screen), remove the power cord, quickly close any applications that could use the discrete card, install gfxcardstatus.
Yes it shows what card is used but you can use it to FORCE a card to be used. Sometimes I have to select 'Integrated only' many times because it switches back to automatic. But once it's set, it works.
I'm been running my computer like this for a month now. Working and even doing video work (it's slooooooow) The computer MUST NOT SHUTOFF, else your back to trying your luck at booting again.
hope this helps.
you can also make sure that in the power setting you have «graphics: better battery life» selected. It's the integrated card vs discrete.
Thanks for your answer,
Though, I'm sure this will help many people to get their mails and do their Xmas online-shopping, I will not use this trick because I can't afford to be slow in business. I managed to get another computer to keep the work done. It's a real pain because I do not have this kind of money, but I need to keep working to maintain this problem, hopefully, as my bigger one.
I know this is a user discussion board and everything must be done to help even the most unique problem, but this problem has reach proportions that require things to be as clear as possible so people do not go at war for the bad reasons :
All these tweaks and tricks may help you save some pictures, finish a work and use a bit your computer (and that a really good start) but do not make it THE solution. You paid for a working computer. You must get what you paid for. The 2 years lifespan is not the problem. The fact that Apple is not able to fix this, is.
I know many of us are willing to pay for a repair, a one that last more than 95 days, because our computers are still very muscular (I would have to spend 2600€ on a 15" 2013 MBPr to get the overall equivalent)
Keep in mind that every hardware operation may cause other problems. Doing this, you aknowledge the fact that Apple is not responsible for it anymore. And some data posted here could be ruined by "hybrid" diagnostics.
Software manipulation is (generaly) harmless, but could lead to false statements in these post too.
It's already a big mess. We all should be very carfull and aware of that.