Anyone with a Crucial MX100 SSD and problems with Mavericks?

Spinning Beach Ball

Spinning Beach ball (2)

Spinning Beach ball (3)

Spinning Beach ball (4)

Hi, I don't know very well english, so, sorry for mistakes.

I have a MBP 13" 2012 i5, and I didn't try OS X Mavericks under original HDD. I bought it, and I immediately change HDD for same SSD, just 256GB instead 512GB. I'm talking 1 month ago. I mean, the hardware is new.

Under Mavericks I had the same problem. I installed it clean on the SSD. So, Yosemite released, and I install it, again, clean. Nothing of Time Machine or stuff. Clean installation. Thinking about it's problem of Mavericks. I though that problem would be fix it.

Under Yosemite, again, I had the same problem, again, the "spinning ball of death" for almost 10 seconds.

I've tried Ubuntu 14.04.1 for weeks and there is not problem, everything is fine!!!. So, SSD is OK, Mac's hardware is OK too. I think Apple OS X is the problem.

I will try it reset SMC. I'll let you know if I found a solution.

PD: I had a Mac Mini as yours. Just it was i7 2.3 instead 2.6. And I didn't have problem at all. I had it with original HDD.

Fresh install of Yosemite, same disk, same problem.

Any idea?

Same problem to : "spinning ball of death" for almost 10 - 20 seconds !!!!

Mac mini Late 2012 (i7 2.6ghz).

Crucial MX100 256gb SSD

HHD 1T

Fusion drive

Mavericks

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Everything works perfectly

MacBook pro Late 2008.

Only Crucial MX100 256gb SSD

Mavericks

Any explanation ???

Thank you

Same issue. Early 2011 Macbook Pro, Mavericks, just replaced drive with a MX100 SSD, and now constant spinning beach ball. Even writing this post seems to be a struggle for it. Any news on a solution?

Reset PRAM and GOGOGO!!!!

Thanks. Just reset PRAM and it seems to have worked. Cheers!

I am having the same hangs with a 512MB MX100 in an i7 quad Mini (2012 refurb) that I bought in December. I have been fighting and fighting with it but still no dice after zapping the PRAM.

anyone else find some relief?

Had the same problem and tried all the sugestions in this thread but no one worked. The solution I found was to swap the drives, leaving the SSD in the upper bay and the original hard drive in the lower one (drive bracket). Hope this helps.

There's a firmware upgrade for the MX100 (search for MX100 in the dropdown here: http://www.crucial.com/usa/en/support-ssd) however after reading through the thread, the upgrade seems to require a fairly advanced skills and knowledge. Anyway I'm not sure if the upgrade is intended to fix spinny beachball issues or random and frequent restarts like I'm experiencing. Here's how Crucial describes the update...

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Release Date: 03/10/2015 (Manual boot file for Windows and Mac)

Firmware for the MX100 (all form factors) is being updated from version MU01 to MU02. The MX100 is updateable to this new firmware starting from previous versions using tools provided by Micron.

This update will be mandatory cut-in for new product built in Micron factories, and is an OPTIONAL update for any drive in the field. For end users, it is recommended if the user is experiencing or wishes to prevent an issue related to the following items.

Version MU02 includes the following changes:

Improved stability, Efficiency, and Performance during power state transitions

Improved handling of environments with unstable power supplies

Improved handling of environments with SATA interface signal integrity issues

Improved response time for SMART read commands

Corrected error handling NCQ Trim Commands

Corrected reporting of SMART Attribute 5

I put in a Crucial MX200 in my Mac Mini 2011. Fresh install of Yosemite but a lot of spinning beach balls. Took this advice of switching the drives around, and putting the SSD inthe upper space/SATA and the HDD The lower space. Totally fixed it. THANK YOU!

I have a Crucial BX100 running on Yosemite, it works fine.