sometimes during normal use, the Mac stopped working (not a total freeze the reported symptoms were as if there was an I/O issue) – this was less likely to occur if the Mac was cool.sometimes it behaved as if no drive was installed.Anyway, does anyone know anything about a problem like this? I am running 10.7.5 on a Mid-2011 Macbook Air 11-inch, 1.6 GHZ i5.Ī few weeks ago I found similar symptoms with a colleague's iMac: Does anyone know what might be wrong with the computer? I'm pretty sure I've tried resetting the PRAM and SMC, though this was a long time ago. Fortunately, OS X is stable and I have something like 95 day uptime going, however, the computer is essentially a desktop now with no portability. So I have backed up the hard drive contents fairly well, and I've since never turned the computer off or let the computer go to sleep unless it freezes. So that necessitates another round of restarts hoping it will boot. Another thing is that if the computer has booted up, if I put it to sleep, it will not wake up or it tries to but then it freezes. So if the computer restarts, then I might be rebooting it a dozen times before it boots up. I would say it finds the startup drive about ten percent of the time. But, if I turned off the computer, again it would most likely not find the startup drive. I then checked the disk with a few utilities, none of which found any problems. However, for whatever reason and luck, restarting the computer eventually fixed it the startup disk would be found and the computer would boot up with no problem. If I booted from a recovery USB, disk utility would not even find the drive.
Initially, I was convinced the hard drive (ssd) was dead. About six months ago, my Macbook Air started having a strange issue where it would often not be able to find the startup disk, giving me the flashing question mark.
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