Is there any way to fix the Sarmsung 840?

[zaza]

If you didn't know about it, all Samsung 840 SSDs have a glitch where they slow down to a crawl when reading older files, slower than an HDD. It was as low as 40MB/s instead of the advertised 550MB/s. After running a special script in MyDefrag that re-writes everything on the SSD (i.e. turn the old files into new files) it only improved slightly to 50MB/s. The 840 EVO also had this issue and Samsung released a fix for it, but they never bothered fixing the regular 840, apparently they hoped they could get away with it, and apparently they did.

https://www.youtube.com/watch?v=D5lyfSTsv3E#t=694


Anyone got any suggestions?



PS: Never buy anything from Crapsung again. Crucial ftw!

 

[Ramses]

from what I gather if you can re-write the data, all of it, it will refresh things for awhile and be ok. for awhile. Folks were using some sort of disk test or defrag or something like that to accomplish this, can't remember what it was for sure.

 

[Puffnstuff]

You should file a tech ticket with samsung and tell them about the problem. If enough people complain they will be inclined to do something.

 

[VirtualLarry]

You should file a tech ticket with samsung and tell them about the problem. If enough people complain they will be inclined to do something.

People in the UK could complain to the relevant authorities that the device is "not fit for pupose" (purpose being performance storage, with certain performance specs).

 

[zaza]

from what I gather if you can re-write the data, all of it, it will refresh things for awhile and be ok. for awhile. Folks were using some sort of disk test or defrag or something like that to accomplish this, can't remember what it was for sure.

They were using a script in MyDefrag that supposedly rewrites everything, but it only marginally improved my SSD from a min of 40MB/s to 50MB/s.

I'm thinking the only solution now is to format and reinstall windows, and redo this every month or two.

 

[zaza]

You should file a tech ticket with samsung and tell them about the problem. If enough people complain they will be inclined to do something.

https://www.youtube.com/watch?v=D5lyfSTsv3E#t=694

Notice (at 11:40) in the video the tech guys had already tried to ask samsung about the 840 problem, and they said that Samsung completely ignored them and tried to pretend the problem doesn't exist... And now months later it's obvious it's going to stay that way no matter who complains.

 

[Ramses]

I hate to say it but, sell before the word gets out any further.
The 850's are cheap and I'd be really shocked if they have the same problem.

 

[Puffnstuff]

This is exactly why you put the word out and put pressure on samsung to do something. Staying quiet doesn't help anyone so become the squeaky wheel. My recent experience with their 840 pro is exactly why an intel 520 ssd is in my system right now.

 

[tweakboy]

I smell RMA

 

[Murloc]

I discovered today that there was a problem with this model, I've never noticed anything.

Lol.

Luckily it's a 128GB 100$ SSD I bought 1-2 years ago.

 

[Brado78]

Samsung is yet, releasing ANOTHER fix for the 840 evo..:/ The new fix will be available sometime in March.. From what I have read,. Will this be it, who knows.....

 

[Emulex]

Or just buy the pro version of the drive and fuggedaboutit!

 

[Brado78]

Emulex Ok there McDougal (love that cartoon)

 

[Excessi0n]

Use DiskFresh to rewrite everything on your drive. It brings file read speeds back up to factory specs.
http://www.puransoftware.com/DiskFresh.html

 

[SSBrain]

Making a system image and writing it back to the SSD works too, with the added benefit that you're backing up your data somewhere in the process.

 

[3DoubleD]

Thanks for the recommendation Excessi0n.

Here are my before (http://1drv.ms/1FIpHIi), after one run (http://1drv.ms/1G365lU), and after two runs (http://1drv.ms/1G367tS) of DiskFresh on my 120GB 840EVO. Read speeds still are not perfect, but they are WAY better than they were. Also, it does not appear running DiskFresh a 2nd time improved performance beyond the first run. I should note I'm on SATA2, so the bit near the end is pretty much maxing out the available bandwidth. Hoping Samsung can come up with a fix that will solve this problem permanently, but at least this solves the problem in the short-term.

 

[Hulk]

I wonder if the next "fix" will include a background operation that rewrites data after a certain amount of times goes by? Perhaps 2 weeks?

Of course the downsides to this would be the extra storage space required to keep track of when data was written, thus reducing available storage. Reduced endurance, which given the endurance of the 840 EVO would be pretty negligible. And finally the fact that his "fix" wouldn't work if the drive was not powered.

I am very interested to see if and how Samsung corrects this issue.

 

[tweakboy]

Ouch, RMA that sucker. GL b They have good turn around speed,,, friend had good issue with them. Very nice gl