After upgrading to 10.9.4 lines appeared on the screen of my 2011 15" Macbook Pro 2.3ghz 8gb. The lines appeared during the bootup screen as well. After booting up from an external drive, the line disappeared. I ran disk utility and it found numerous overlapped extent allocation errors. I Googled the problem and found the best remedy is to erase the drive and do a fresh instal. Which I did, however the lines reappeared (see pictures). I ran the Apple Hardware Test and it came back with error: 4HDD/11/4000000:SATA(0,0) The "Extended" Hardware Test showed no errors.
Im currently running a fresh copy of 10.9.4 and the lines havent returned but now after a few minutes of running any type of video, the screen go blank for a minute or two and the system starts to beep. Not a beep from the speakers, but an internal beep, like from the logic board. It requires a hard reset to recover from.
Anybody have an idea whats going on? Is the hard drive/screen/logic board failing? Thanks.
Im currently running a fresh copy of 10.9.4 and the lines havent returned but now after a few minutes of running any type of video, the screen go blank for a minute or two and the system starts to beep. Not a beep from the speakers, but an internal beep, like from the logic board. It requires a hard reset to recover from.
Anybody have an idea whats going on? Is the hard drive/screen/logic board failing? Thanks.
