Crucial C300 SSD Firmware Update 006 Release For Better Performance

If you keep an eye out at the Crucial Firmware Update section this morning (22Nov10) you will be seeing a new firmware posted for the C300 RealSSD series. Having already had an opportunity to check it out, I can say that the f/w is available for all capacities and takes but a few seconds to install.


Looking at the change log of the file we received, the Version 006 firmware addresses the following:

  • Improved power management
  • Improved power-up behavior after uncontrolled power-down
  • Improved full drive and corner-case performance
  • Improved TRIM behavior

Note: This is firmware from Revision 0002 to Revision 0006. It will not work for updating between any other versions. If your drive has Revision 0001 firmware, then you MUST first perform the intermediate step of updating to Revision 0002.

Knowing what we already do of Crucial, we can guess that they fine tuned their TRIM and aggressive GC just a bit. As for the ‘Improved full drive and corner-case performance’, stay tuned as we test and update this release as well as testing in RAID later in the week.

WARNING: The firmware update process is done entirely at your own risk. Before initiating the update process be sure to backup or make copies of all important files. If the firmware process is interrupted your solid-state drive may not function properly.


  1. thanks for the update Les! Any word on if the C300 64gb is getting this firmware update too? Is this a destructive firmware, meaning everything will be wiped clean? thanks in advance!

    REPLY: It is not a data destructive upgrade according to the release flyer and I cannot answer with respect to the 64GB except to say, I only learned that it was not compatible with the 64GB SSDs after trying on the two that I have presently.

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    This Crucial C300 256Go firmware 0006 Update is it compatible with Mac OS X 10.6 Snow Leopard?

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    I just updated a C300 256 GB from version 002 to version 006. It is a non destructive upgrade. I use this drive in a Dell E6410. I could not perform the upgrade from the laptop, I had to put it in a desktop computer with IDE settings in the BIOS. The upgrade went smooth after that – no problems.

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    I just upgraded it. It went smooth in my laptop (lenovo T500)

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    So according to the article there is supposed to be a review later in the week, but the weeks already over and I don’t see any Review…

    EDIT: You are absolutely right and, unfortunately, things have been a bit overwhelming at the site with all the new attention lately. We did state that we would test for an increase in performance, not review, and we did with no appreciable difference observed. Apologies for not posting it. This is still an amazing drive!!!

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