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4hdd/11/40000000:sata(0,0) Apple Hardware Test (holding D at power on)

I appear to have developed a SATA disk error after 5+ months of use. I was running the D at power on test daily then once a week with no problem. Last week when running the Apple Hardware Test this error appeared "4HDD/11/40000000:SATA(0,0)". Can anyone help me determine why this just started after 5+ months with no problems?

MacBook Pro with Retina display, OS X Mavericks (10.9)

Posted on Oct 28, 2013 1:34 PM

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37 replies

Sep 25, 2015 3:35 PM in response to cppguru

My MBPr just came back from warranty service where Apple replaced the motherboard. Previously, they had replaced display. I was having funky (black boxes) display issues.


I had purchased an 11" MBA to take with me on a two week motorcycle trip to Alaska, so I did nothing with the MBPr until we returned. It seemed sluggish. Then it was clearly sluggish. And I've had a couple of those black boxes block Safari. And it ran out of RAM (16GB) one day this week, while I was at work with the MBA. It has NEVER run out of memory, and I've had it since April 2013.


Now it may require a hard reboot after going to sleep. It has also reboot itself, spontaneously, while I was working.


The bottom rear dead-center is hot. So I ran the short test and got the same error that brings people to this thread: 4HDD/11/40000000: SATA (0,0) single pass.


I'm backing up the machine again, even though it probably has nothing new on it. (Most of my work lives on DropBox.) I'll run the 1-hour test and see what it says. Then try Genius Bar.


I'm @kegill on Twitter.

Oct 6, 2015 1:08 PM in response to gwfaulkner1

My question to you would be: Do you have FileVault 2 enable ? That might be the source of the problem. Indeed I ran those test (both normal and extended) and have the save error message. But if I disable FV2 the error disappear. In my humble opinion is possibly due that as the disk is locked the Diagnostic can't perform on the SSD. If you want to check if you SSD have any problem you might want to have a looked at the SMART status of your disk in Disk Utility. If your status is verified there is nothing to worry about. If you still have doubts you can try disabling FV and check again. Last you can always use your recovery partition or boot in internet recovery and use disk utility first aid tool.


Good Luck,


P.S.: As a last resort a clean OS X install might help if you boot from a usb drive, repartition and wipe your drive.

Feb 16, 2016 12:12 PM in response to gwfaulkner1

I am so sicked and tired of using any of Apple devices where as tech support is so sucked. They know that they have issues but they are not helping you fixing it. I have the same error (4HDD/11/40000000:SATA(0,0) when i run hardware check because it just stalled at the users login screen after typing the password and enter. This is BS.

Nov 1, 2016 9:23 PM in response to gwfaulkner1

I had this exact error on a MBP Unibody mid 2012 13 inch after changing the SATA bus cable (the previous one had a serious error due to it cracking) while the disk was encrypted with filevault 2. It would not go away no matter what I tried, including SMC clearing and removing battery and SMC clearing.


I just started the laptop via command R and selected re-install os and it went away. Literally, nothing else, the reinstall apparently fixed it. The OS before and after the re-install was Sierra.

4hdd/11/40000000:sata(0,0) Apple Hardware Test (holding D at power on)

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