Live chat? What did they say?
Assistance - Calling all Samsung EVO owners
- Thread starter Aurhinius
- Start date
Live chat? What did they say?
Sorry, it wasn't live chat, it was email.
I have just tested a customer's Evo, and it's interesting.........
I`ve just tested a customer's Evo. It was purchased installed in a new build PC around Feb 2014. I carried out the performance restoration well before Christmas. Here are the results of the test I just did........
Oh hang on a second, I`ve just spotted "55.5%" CPU usage. I'm not sure if that would "mask" the problem.
Oh hang on a second, I`ve just spotted "55.5%" CPU usage. I'm not sure if that would "mask" the problem.
Last edited:
Could it be that earlier EVOs have some sort of issue that doesn't get sorted by the latest firmware ?
My own Evo (which is still "dodgy") was purchased very soon after they became available (August 2013, if I remember correctly).
My own Evo (which is still "dodgy") was purchased very soon after they became available (August 2013, if I remember correctly).
Soldato
- Joined
- 4 Nov 2006
- Posts
- 2,752
- Location
- Yorkshire
Likewise, I think I ordered mine on day of release.
I`ve contacted my customer and she's going to run HDTune again, without me logged in via Teamviewer. That may be the reason for the high CPU usage.
I still expect similar results. It does look like her EVO has been sorted by the firmware update. I checked, and her SSD is nearly as full as mine (about 50gb remaining), and her PC gets used as much as my machine.
Once she's run the test again, I'll confirm the results.
I still expect similar results. It does look like her EVO has been sorted by the firmware update. I checked, and her SSD is nearly as full as mine (about 50gb remaining), and her PC gets used as much as my machine.
Once she's run the test again, I'll confirm the results.
ok, will be interesting to see what they say.
I bought mine in Feb 2014.
I had to secure erase my 250gb Evo drive before Christmas as it refused to boot, so my results may not be that relevant as this would have freshened up my data, but I am now starting to see dips into the 250-300 range already, so it looks as if this issue is far from fixed.
Last edited:
That is very relevant.
If you were getting ~500MB/s readings just after the secure erase, you shouldn't be seeing dips below that level.
My Evo is showing slightly bigger dips as the days go by. My "refresh" was done at the end of December.
Sadly, I didn't check the speeds after doing the secure erase, but I did check them after doing the firmware update on the day it came out and it was all flatlined above 500 then.
Think it is time for this drive to go and hopefully there will be some decent prices on the mx100 512gb drives as the new revision is out soon.
Gutted I didn't get one in the black friday sales now.
Think it is time for this drive to go and hopefully there will be some decent prices on the mx100 512gb drives as the new revision is out soon.
Gutted I didn't get one in the black friday sales now.
Since just before Christmas (December 2014 - sorry stating the obvious...)
So a pretty recent drive & installation.
The firmware was updated on the day of its release. Its my games drive with about 40gb free. It looks like its showing signs of degrading again, but certainly in a much better state then it was before the firmware update. The drive was a month old upto that point.
it has to be the controller fw not being able to maintain the drive fully if a secure erase restores performance
I don't think its down to the tlc nand
my corsair force gt ssd was like that,every six or eight months I needed to secure erase it to restore performance fully,and that used mlc nand
I don't think its down to the tlc nand
my corsair force gt ssd was like that,every six or eight months I needed to secure erase it to restore performance fully,and that used mlc nand
Soldato
- Joined
- 4 Nov 2006
- Posts
- 2,752
- Location
- Yorkshire
Imaged the disk, did 2 x secure erase, restored the image and better results
Not sure how long it'll last, but should keep me good for a while hopefully until Samsung release a fix?
Not sure how long it'll last, but should keep me good for a while hopefully until Samsung release a fix?
This suggests that it could well be down to TLC nand.
http://www.pcper.com/reviews/Storag...irmware-Only-Partially-Effective/Cold-Storage
Data stored on a drive that's not been used for a few months should not be affected.
where does it say? just mentions cold storage data nothing about tlc nand
its either the nand itself or a bug with the controller
if it was the nand why does a secure erase restore performance? if the nand was faulty or degraded you wouldn't be able to restore the performance?
its either the nand itself or a bug with the controller
if it was the nand why does a secure erase restore performance? if the nand was faulty or degraded you wouldn't be able to restore the performance?