![]() Ditto with dust, grime, pet hair, tobacco smoke, etc. For example, MacBook Pro laptops placed on a soft, deformable surface like a couch or futon will overheat because the heatsink vents on the back near the screen hinge can become blocked. Unfortunately, this problem started to harass me only after 90 days.:-( or I could have gone back to Apple support (I do not have a warranty anymore).ĭoes anyone have pointers to what could be amiss.hard drive, memory, etc.Įngineers cannot anticipate every environment nor every possible failure mode. ![]() Although I asked them to replace only the base (which had cracked along the edges for no reason that I can think of), they mentioned replacing something else (heat sink.or something to that effect). Interestingly this started to appear after I replaced my Macbook base through Apple support. I have even reformatted and reinstalled my Macbook recently. The strange thing is that on some days the Macbook works just fine (statistically, I use the same applications everyday), but on some days, the spinning wheel appears every 5 minutes (very frustrating). It seemed to correct the problem but not entirely (I feel the root cause is elsewhere). Since I noticed that my Macbook was running pretty hot, I tried the Smart Fan control app. I have noticed that the current application that I am working on (Safari or Microsoft Word or FireFox or even Preview) shows up as "not responding" in the Activity monitor when the I get the spinning wheel. When this recently happened, I opened up the Activity monitor to see if I am running out of memory, but the Free memory is around 300 MB (out of 1GB). There isn't any correlation with the size and type of applications running. I've been having the same problem on my Macbook Intel Core 2 Duo (July-2007) but only recently spinning wheel appears randomly. The fan speed trick did not work in my case. The computer complained the boot app can't be verified, which I solved by changing the system date on the terminal (Google "Changing system date from Terminal – OS X recovery").I tend to agree with cwa107. I made a bootable USB stick with createinstallmedia after downloading the Maverick installer on another Mac. Note a T6 Torx screwdriver is needed, which Apple stores do not loan out nor sell at the time of this posting. I followed instructions on iFixit to replace the hard drive. I got a more reliable brand, since my Toshiba HDD didn't even last 2 years. To fix my Mac, I bought a new 2.5" laptop internal hard drive no more than 9.5mm in height. My Toshiba HDD's SMART Status was Failing, which according to the Apple rep I can only replace it and do data recovery on the broken HDD.Įverything is pointing to the speculation that my laptop tries to detect the HDD without success, so it couldn't load anything, thus the endless spinning disk. An Apple rep ran a Mac Resource Inspector (a specs checker available only at Apple stores) and pinpointed my problem to my hard drive. Since none of these solved the problem for me, I went to the Apple store for the "Genius Bar". Independent HDD Check by taking out the HDD, putting it into a SATA to USB adapter, and plugging it into another Mac.Repair disk by powering on while pressing + -> Disk Utility -> HDD selection -> Repair Disk, note this repair would not affect your data.NVRAM/PRAM reset by powering on while pressing.Verbose safe boot by powering on while pressing.What you can try (might fix the problem if your HDD is not broken): I'll describe all the things I've tried below, but what what I ended up having to do is to buy a new internal hard drive and fresh install Mac on it. I also had and solved my MacBook Pro Lion's problem manifested by the endless spinning wheel under the apple during boot. As bmike said in his answer you can erase the hd and reinstall using net recovery (you can use the disk utility tool to erase the harddrive at the first install screen) or you can take it in to an apple store to be repaired, as it should still be under warranty and could be a hardware failure. If you still have no luck, or you were unable to boot into safe mode in the first place, you only really have two options. ![]() Once you've finished in safe mode, log out and log back into single user mode and try to fsck the drive again. Verify disk permissions, repair disk permissions and verify disk. Next you should open the disk utility (applications/utilities/disk utility) and perform some harddrive first aid. If you get in on safe mode then I'd advise copying any essential information to an external harddrive in case you aren't able to boot in again. You'll have to wait a while for it to load now as safe mode takes quite a bit longer to boot. To do this, hold the shift key immediately after you here the startup chime (not before), keep holding until you see a progress bar appear. Firstly, try resetting SMC (I notice you've already reset PRAM), you'll find instructions here
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