When I upgraded my wife’s computer, it wouldn’t boot into macOS, but it would boot into Recovery on the same drive, which was doubly mystifying. And although this model of Mac features a chipset designed to do handle SATA III, none of three different SATA III-only HDDs worked with it.
This is surprisingly difficult to discover online, probably because there was a transition period in which computers shifted to SATA III and many drives were hybrid II/III drives that auto-sensed the controller type, could be set to II or III using “jumpers” (clips on a special area of the drive), or could have drive firmware flashed to II or III compatibility.Ī SATA III-only drive apparently doesn’t just not work with a SATA II controller, but tries to move data and fails intermittently. The late-2011 MacBook Pro supports SATA III-but Apple included only a SATA II hard drive (HDD), which may have been for cost reasons, but also should have been a clue.ĭrive controllers in a computer are backwards compatible, allowing a SATA III controller to work with a SATA II drive, while the reverse isn’t always the case. Each successive standard is backwards compatible with the previous one and they all use the same physical connector type. SATA I offered a maximum 1.5 gigabits per second (150 megabytes per second) transfer rates II doubled to 3Gbps (300MBps) and III doubled again to 6Gbps (600MBps). (Apple has replaced this with a PCIe bus in modern MacBook Pros.) Until relatively recently and for many years, nearly all desktop and laptop computers used the Serial ATA (SATA) standard in version I, II, or III as the protocol for moving data to and from the computer to a disk drive. (If you can find a 4TB laptop drive that’s no higher than 9.5mm, you’re good.)īut I did find a number of people discussing an issue between 20 related to this and similar models: a drive-interface standard mismatch, despite seeming compatibility. I researched again to make sure there wasn’t a known controller flaw or limitation, and there wasn’t. Option clicking the battery indicator on the menu bar shows condition as "Normal.I tweeted about this frustration on my latest failure, and my friend Alanna asked: are you sure this laptop model can accept a 1TB drive? I was sure! Or so I thought. Would a simple replacement battery off eBay fix my problems? The charging cable is a replacement and non-original. All I did was wipe the drive and install a fresh copy of MacOS High Sierra. I received this MacBook with the upgraded storage and RAM, though I am unsure on whether the battery was replaced or not. It rapidly depletes when in use, I estimate about 1 1/2 hours of use off 50%.
I found an article online of a 2013 owner having a broken DC conversion board or whatever (drowns in technical jargon) but I don't think it applies to me.Īt times the battery will reach 52%, others 47%.
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