Need help troubleshooting my Macbook Pro 15" Late 2011

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Recently my Macbook Pro has been having an issue. I turn it off for the night and go to sleep. Upon waking up and turning it on it won't boot at all. I get a black screen and I hear fans starting to spin and then they completely stop. Also the sleep light keeps blinking one time. It keeps repeating this process until I do the Shift+Alt+Command+Power Button thing (I believe resetting SMC). I'm currently booted into safe mode and have repaired my disk and it says everything is okay. This usually only happens when I leave it off. I'm just coming here to see if anyone with experience might be able to diagnose this or help me further. I appreciate any advice, thank you.
 

chscag

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If you have to keep repairing the disk in order for your MacBook Pro to work right, the first thing you need to do is make a backup, and the second thing is to change out the hard drive before it fails all together.
 
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If you have to keep repairing the disk in order for your MacBook Pro to work right, the first thing you need to do is make a backup, and the second thing is to change out the hard drive before it fails all together.
I already erased the whole hard drive. So no worries there. And i don't have to keep repairing the hardrive. I've been doing it just to see if everything's okay. My problem is not knowing what the problem is.
 

chscag

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OK, that's a bit different than your original post. We'll assume the hard drive is alright. Since you reset the SMC and it's doing the same thing, it could be a logic failure. You didn't mention which version of OS X you're running but go ahead and do a hardware test to see if any errors come up. Using the Apple Hardware Test
 
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OK, that's a bit different than your original post. We'll assume the hard drive is alright. Since you reset the SMC and it's doing the same thing, it could be a logic failure. You didn't mention which version of OS X you're running but go ahead and do a hardware test to see if any errors come up. Using the Apple Hardware Test

I'm running the Yosemite OSX and the AHT isn't working. I hold down the D key but nothing happens.
 

chscag

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