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Samsung SSD 840 EVO performance degradation fix

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A bug was found about a month ago where old data on samsung evo would become slower over time as slow as ~30mb

 

http://www.samsung.com/global/business/semiconductor/minisite/SSD/us/html/support/downloads.html

Samsung is releasing a new firmware and performance restoration software package for the 840 EVO and 840 EVO mSATA.
The firmware update is recommended to users who may have experienced any drop in read performance of the mentioned drives.
Running the software packages provided will first update the firmware(840 EVO : EXT0CB6Q, 840 EVO mSATA : EXT42B6Q),
then scan and calibrate all existing data on the drive.
Note that the update time can be more than an hour depending on the amount of data.
Please wait for the firmware update to complete before starting any other operations.

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Currently running this on my 120GB EVO, but sadly can't do it yet on my Mac's EVO as that of course has Mac OS X on it :-P. Will be waiting for their bootable version to come out, which will allow non-Windows users to do this

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Seems it also doesn't like it when you have the AMD or Intel AHCI drivers installed; only works only stock Windows ones. So yeah, my 120GB won't be updated for a while now

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Update to this, the performance issues are back

 

I have 2 of these drives, installed the fix on the day of release, OS win 8.1 pro this is my os drive which has my origin and uplay library, the other drive has steam. Regular daily usage

 

2015-01-30%2013.38.18%20Results%20for%20

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