i guess when samsung release the speed restore thingy we will be using it quite often then :/ although saying that, just tested and mine seems fine atm [IMG]http://i496.photobucket.com/albums/rr323/stevevnicks/huh_1.png">[IMG]http://i496.photobucket.com/albums/rr323/stevevnicks/huh_1.png[/IMG]

You can't measure the read speed degredation using 'normal' benchmark tools, because the read speed only affects old data - most benchmarks write new data, and then read that newly written data to determine the speed - that's why your drive looks ok when you test it in Samsung Magician. To test it probably you need to use a little program that a user has created in this forum (called SSDReadSpeedTester2.04.exe): http://www.overclock.net/t/1512915/read-speeds-dropping-dramatically-on-older-files-benchmarks-needed-to-confirm-affected-ssds I've been testing it on mine and read speed slowed after somewhere between 4-8 weeks, this is while using the supposedly fixed firmware. Also, the read speed degredation happens on drives that are used - I'm using mine as a system boot drive, so the data is accessed/read a lot, but just not written to much.

Yeah loosing faith in Samsung over this. Firstly my 840 Evo, which hasn't been sitting idle for a few months is affected by this slow down issue, despite running the refresh tool and the firmware update prior to using it for the first time only 3 or 4 months ago. Second just tried to use their Magician Software, the only magic this piece of cr*p software could pull was to lock my computer up and render it utterly unuseable, a hard reset, boot and then it locks up again, I am assuming that the software has some sort of auto start option. So yeah in to safe mode and removed that pile of rubbish and now the computer at least doesn't lock up anymore.

I hope not! I just bought an 850 evo 1tb! Decided to avoid the 840's.

Well technically speaking was only meant to effect evo range, however am seeing slow down on my 840 pro in that ssd read speed tester bench. http://i257.photobucket.com/albums/hh212/k3vst3r_oc/Benchy/2015-02-23170850ResultsforC.png

I've read about this, but never looked into it. And wow that looks bad, thought its just slight degradation, but max 50mb/s is a disaster imho.

oh ok thanks, i will try the test you recommend, did not realize. same here i use the SSD for my OS drive only. retested with the software you advised averaged 421MB/s [IMG]http://i496.photobucket.com/albums/rr323/stevevnicks/2015-02-23%2014.56.36%20Results%20for%20C.png">[IMG]http://i496.photobucket.com/albums/rr323/stevevnicks/2015-02-23%2014.56.36%20Results%20for%20C.png[/IMG]

Yeah loosing faith in Samsung over this. Firstly my 840 Evo, which hasn't been sitting idle for a few months is affected by this slow down issue, despite running the refresh tool and the firmware update prior to using it for the first time only 3 or 4 months ago. Second just tried to use their Magician Software, the only magic this piece of cr*p software could pull was to lock my computer up and render it utterly unuseable, a hard reset, boot and then it locks up again, I am assuming that the software has some sort of auto start option. So yeah in to safe mode and removed that pile of rubbish and now the computer at least doesn't lock up anymore.

Well technically speaking was only meant to effect evo range, however am seeing slow down on my 840 pro in that ssd read speed tester bench. http://i257.photobucket.com/albums/hh212/k3vst3r_oc/Benchy/2015-02-23170850ResultsforC.png

You can remove the auto start up function of Magician by removing that task from the Task Scheduler.

odd ? i have had no issues with the samsung software? the more i think about it maybe you have issues else where thats causing the software not to run as intended? just a thought mind you.