Of course, Apple will most likely void your warranty if you go inside your iMac for other purposes than to swap the RAM. In plain English, 2011 iMacs can’t have their hard drives upgraded, unless you take them to an Apple specialist.īut there’s a workaround, according to reader Ben Surtees, who suggests using HDDFancontrol, a free app that automatically controls the HDD fan speed using the temperature obtained from the drive’s S.M.A.R.T data. “From our testing, we’ve found that removing this drive from the system, or even from that bay itself, causes the machine’s hard drive fans to spin at maximum speed and replacing the drive with any non-Apple original drive will result in the iMac failing the Apple Hardware Test (AHT).” “Hard drive temperature control is regulated by a combination of this cable and Apple proprietary firmware on the hard drive itself.” “For the main 3.5″ SATA hard drive bay in the new 2011 machines, Apple has altered the SATA power connector itself from a standard 4-pin power configuration to a 7-pin configuration,” the hardware shop says. According to their preliminary findings, Apple has changed the game again, for good this time. Don’t replace the hard drive in your new 2011 iMac (s aapl), or the fans will scream like a banshee as they spin up to full-speed and the Apple Hardware Test will fail.The issue is that the factory-installed Apple hard drives have a built-in thermal sensor that is connected to the logic board by a proprietary SATA power cable that includes additional pins for the sensor.
#NEW HARD DRIVE FOR IMAC 2011 UPGRADE#
The only iMac HDD upgrade option on the market certified to pass the Apple Hardware Test. Well, that’s not the case with 2011 models, says OWC. Eliminate fan noise and maintain correct system fan control when upgrading your 2011 iMac. The drives used in those iMacs featured their own specific thermal sensor cable, making it a pain to find a compatible replacement unit.īut there was a rather small selection of drives that did fit the needs of the 2009 iMac. With the release of the Late 2009 iMac, Apple changed the way the iMac sensed heat coming from the hard drive, the hardware vendor notes.
Replacing the hard drive in one of Apple’s newest iMac computers will cause the system’s fans to begin spinning out of control, OWC has found, making it impossible for end customers to do the swapping on their own.
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