Released June 2012, Model A1278. Intel processor with Turbo Boost, Up to 512 MB DDR5 Video RAM

711 Questions View all

Beachballs and almost unresponsive after Sierra upgrade

Just as a sample, it took 1 min to write that question title because after 2-3 keystrokes, the bechball would show up.

With the Yosemite upgrade my MacBook was ok but after El Capitan i started noticing the slowness but it was still ok. Now with Sierra upgrade, my MacBook Pro (mid-2012) has become completely unusable. A spinning beachball now shows up after just 3 key strokes, 3-5 seconds before the menu opens on right click, even watching a video now is an impossible task. How do i fix? Is there a way to find the OS X installer and go back to to an older OS version like Mavericks or Yosemite? Or any other suggestion?

The etrecheck report is given below. Any advice or suggestion will be highly welcome.

EtreCheck version: 3.0.6 (315)

Report generated 2016-11-13 19:48:21

Download EtreCheck from

Runtime 26:11

Performance: Poor

Click the [Support] links for help with non-Apple products.

Click the [Details] links for more information about that line.

Problem: Beachballing

Hardware Information: ⓘ

MacBook Pro (13-inch, Mid 2012)

[Technical Specifications] - [User Guide] - [Warranty & Service]

MacBook Pro - model: MacBookPro9,2

1 2.5 GHz Intel Core i5 CPU: 2-core

4 GB RAM Upgradeable - [Instructions]


2 GB DDR3 1600 MHz ok


2 GB DDR3 1600 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

Wireless: en1: 802.11 a/b/g/n

Battery: Health = Normal - Cycle count = 246

Video Information: ⓘ

Intel HD Graphics 4000

Color LCD 1280 x 800

System Software: ⓘ

macOS Sierra 10.12.1 (16B2555) - Time since boot: about one hour

Disk Information: ⓘ

TOSHIBA MK5065GSXF disk0 : (500.11 GB) (Rotational)

EFI (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / [Startup]: 499.25 GB (291.98 GB free)

Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB


USB Information: ⓘ

Apple Inc. FaceTime HD Camera (Built-in)

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Computer, Inc. IR Receiver

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus

Gatekeeper: ⓘ

Mac App Store and identified developers

Kernel Extensions: ⓘ


[not loaded] com.seagate.driver.PowSecDriverCore (5.2.6 (26913) - SDK 10.4 - 2016-11-04) [Support]

/System/Library/Extensions/Seagate Storage Driver.kext/Contents/PlugIns

[not loaded] com.seagate.driver.PowSecLeafDriver_10_4 (5.2.6 (26913) - SDK 10.4 - 2013-12-19) [Support]

[not loaded] com.seagate.driver.PowSecLeafDriver_10_5 (5.2.6 (26913) - SDK 10.5 - 2013-12-19) [Support]

[not loaded] com.seagate.driver.SeagateDriveIcons (5.2.6 (26913) - SDK 10.4 - 2013-12-19) [Support]

Startup Items: ⓘ

MobileBrServ: Path: /Library/StartupItems/MobileBrServ

Startup items no longer function in OS X Yosemite or later

System Launch Agents: ⓘ

[not loaded] 7 Apple tasks

[loaded] 169 Apple tasks

[running] 95 Apple tasks

System Launch Daemons: ⓘ

[failed] com.seagate.TBDecorator.plist (2013-10-12) [Support]

[not loaded] 42 Apple tasks

[loaded] 165 Apple tasks

[running] 97 Apple tasks

User Launch Agents: ⓘ

[failed] com.adobe.ARM.[...].plist (2014-10-27) [Support]

[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist (2016-03-29) [Support]

[loaded] (2016-07-12) [Support]

Internet Plug-ins: ⓘ

Silverlight: 5.1.41212.0 - SDK 10.6 (2016-04-05) [Support]

FlashPlayer-10.6: - SDK 10.9 (2016-10-28) [Support]

QuickTime Plugin: 7.7.3 (2016-10-29)

Flash Player: - SDK 10.9 (2016-10-28) Outdated! Update

User internet Plug-ins: ⓘ

CitrixOnlineWebDeploymentPlugin: 1.0.105 (2013-04-26) [Support]

3rd Party Preference Panes: ⓘ

Flash Player (2016-10-23) [Support]

Paragon NTFS for Mac ® OS X (2014-09-11) [Support]

Seagate Dashboard for Mac OSX (2014-04-11) [Support]

Time Machine: ⓘ

Time Machine not configured!

Top Processes by CPU: ⓘ

5% WindowServer

2% kernel_task

2% system_profiler

1% ocspd

1% ionodecache

Top Processes by Memory: ⓘ

610 MB

544 MB kernel_task

238 MB system_profiler

156 MB mdworker(12)

123 MB Finder

Virtual Memory Information: ⓘ

95 MB Free RAM

3.91 GB Used RAM (932 MB Cached)

0 B Swap Used

Diagnostics Information: ⓘ

Nov 13, 2016, 06:19:59 PM Self test - passed

Nov 13, 2016, 12:02:55 AM /Library/Logs/DiagnosticReports/suggestd_2016-11-13-000255_[redacted].cpu_resource.diag [Details]


Nov 11, 2016, 11:27:13 PM /Library/Logs/DiagnosticReports/suggestd_2016-11-11-232713_[redacted].cpu_resource.diag [Details]

Answered! View the answer I have this problem too

Is this a good question?

Score 0
Add a comment

2 Answers

Chosen Solution

This is a known issue with this series with the HD SATA cable. Apple has been replacing them for free. I would strongly recommend you visit an Apple Store or Authorized Service Center to have your system looked at.

I would wait until you get the HD SATA cable checked before doing these:

  • Your HD may need repairs. Do you have an external bootable drive? If not do you have a friend who has a Mac system which you can connect your system to using a FireWire or Thunderbolt cable in Target Mode? If you do you should be able to run Disk Utility to check your drive.
  • Often after upgrading the hard drive tend to get more fragmented. You'll want to free up as much space as you can. I strongly recommend you leave around 1/4 of the drive free before running a defragmentation program. To start off I recommend deleting out the Cache & Log files. Here's a tool that makes quick work off it: Disk Doctor. The defrag tool I use is this one: Drive Genius

Was this answer helpful?

Score 1


I absolutely agree! If that cable is left in to long it will destroy your hard drive.


Add a comment

As a programmer with thirty years of Mac experience, I don't see what the slowness of an OS has to with all that is mentioned above. The cause is simply that the OS was written by idiots. Software shouldn't be slow under any circumstances. And if the software is, the engineers don't know what they are doing.

Was this answer helpful?

Score -1


In this case it's not a software issue at all, OS or App!

Think of it this way you're in the top floor of a building and all of a sudden the building shifts from your perspective the fault is the floor you are on not whats below! Sadly, the real problem could be at any of the lower floors.

Here the issue is the stability of the HD's SATA cable as the processes running are trying to access or save data onto the drive. What is happening here is the CRC checksum of the given data block is failing so it needs to be resent. But, we are not talking about one block but thousands upon thousands of blocks all trying to be read or written. So the OS gets bogged down hence the Beachballs!

This is not a stupid programing issue at all it's a hardware failure!


Dream on .               


Well Adriaan, you may know your software, but you are way out of your league on this issue and obviously have no idea of what you're talking about. And I've been at it longer than you have.


@mayer - Clearly he is very closed minded person ;-}

Must be a young whippersnapper who has not clue on how a computer even works. His loss.


After 50 years of computer and software development, I agree. The first try at a solution is to stop issuing new versions. Fix one version completely. There should never be a rolling beachball, especially with a mac running mac software.


Show 1 more comment

Add a comment

Add your answer

Anirban Chatterjee will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 0

Past 30 Days: 189

All Time: 1,180