Assistance - Calling all Samsung EVO owners

What makes this HD Tune Software the "Be all and end all"

Can anyone tell me if this software is 100% reliable?
 
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If my EVO is the system drive, and I secure erase it with a Samsung Magician Secure Erase CD I made, and I then boot with the EaseUS emergency linux boot disk, how do I restore the .PBD image I have on another USB drive?
 
Andy7 said:
What makes this HD Tune Software the "Be all and end all"

Can anyone tell me if this software is 100% reliable?
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That question has been on my mind.

Having said that, over the last couple of days my Evo might be starting to show signs of falling performance according to HD Tune and AIDA64 (a few more days/weeks may be required to confirm). Before the secure erase HD Tune (and Sumsung Magician#s performance benchmark, to a certain degree) indicated my Evo wasn't performing too well. After the secure erase all benchmarks looked much better. I'd like to know what's going on.
 
graphicequalise said:
If my EVO is the system drive, and I secure erase it with a Samsung Magician Secure Erase CD I made, and I then boot with the EaseUS emergency linux boot disk, how do I restore the .PBD image I have on another USB drive?
Click to expand...

I suggest that you do the backup. Then just open the backup file to confirm that the file "works" (you should be able to open up your "C" drive and access folders and files). That is no guarantee that your restore will work, but it's a good indication that the image is OK.

I'd then boot from the emergency boot disk and follow your nose. Click "Recovery" and navigate your way to the backup image. If you click on the recovery image, it shopuld show you the partition layout of your Evo. Don't carry out the recovery (you haven't secure erased the SSD yet), just make sure you can access the recovery image. This will confirm that the backup image is availabe from the emergency recovery environment.

If all of that seems OK, then carry out the secure erase, then do the recovery.

It should work OK, but there is always a small risk involved !
 
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Andy7 said:
What makes this HD Tune Software the "Be all and end all"

Can anyone tell me if this software is 100% reliable?
Click to expand...

We're seeing this problem with other benchmark utils, normal usage (longer boot times for example), and with different operating systems (see my earlier post re this issue in Linux here).
 
Dervious, I did the secure erase last night, after validating my backup image (which took longer than making the ruddy image in the first place!) and used the EaseUS Linux boot USB stick to restore the image to the drive. It did it all and all looked OK. However, the PC would not boot, since I could not make the partition active with EaseUS. There is a tick box to do so, but ticking it gave some error message about not being able to make the current partition active. So, I did the unthinkable (this system is only a month old) and used the Win8.1 disk to try to repair the drive, but that didn't work. So, I had to reinstall Windows and wipe out what was on the secure-erased, restored SSD. I have some before and after shots with HD Tune Pro 5.5 which I am still preparing, but I can already tell you, my minimum speed went from 30 MBs to over 200MBs. The burst rate has rocketed and the access times are down too.

In my situation, with a recently-built PC and the drive exhibiting such low rates before even a month had gone by, this points to a Samsung-end problem. They need to address this, but they are such a large remit company, this product is a very tiny piece of their market, and they are replacing these with 850's, so whether they'll do anything is another matter.

P.S. Bad luck Scotland, but I told you so - from my thoughts page :-

9th September 2014 16:30
Let's stop talking about the Scottish vote until they've actually voted, had the result fixed by the UK govt., and the public hoodwinked into thinking that the Scottish rejected independence. 'Cos, no matter how good it would be for Scotland to be independent, you know that's what gonna happen.
 
Just thought I'd post this

http://www.anandtech.com/show/8550/...40-evo-read-performance-bug-fix-is-on-the-way

I just got off the phone with Samsung and the good news is that they are aware of the problem and have presumably found the source of it. The engineers are now working on an updated firmware to fix the bug and as soon as the fix has been validated, the new firmware will be distributed to end-users. Unfortunately there is no ETA for the fix, but obviously it is in Samsung's best interest to provide it as soon as possible.

I do not have any further details about the nature of the bug at this point, but we will be getting more details early next week, so stay tuned. It is a good sign that Samsung acknowledges the bug and that a fix is in the works, but for now I would advice against buying the 840 EVO until there is a resolution for the issue.
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:D
 
BTW. I did "the fix" last night on a customer's PC (remotely).

She told me that after I carried out the secure erase/restore, her PC booted up a fair bit faster. I can only take her word for it, but she rebooted a couple of times and confirmed that it did seem faster.

Let's see what Samsung come up with.
 
Props to Samsung if they roll out a robust fix for it, way too many companies would hope it eventually went away of its own accord :S
 
Here are my before and after results with HD Tune Pro 5.5 (Trial). There are also readings for my Toshiba 7200 rpm SATA disk drive (500GB), and a Seagate USB3 external hard drive (2TB) on the first run. These show my Tosh was almost as fast as the SSD for throughput initially!

Before :-
evo_benchmark.png


After secure erase and reinstall of Windows 8 :-
evo_benchmark2.png


A couple of days use after (slight deterioration already noticeable) :-
evo_benchmark3.png


So, Samsung have acknowledged the problem. I hope they dish out a firmware update soon! Great thread Aurhinius!
 
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Would just also like to say ty to the thread starter Aurhinius and the other posters here. I'm more of a lurker as you can tell by my post count, but this thread has been very interesting and helpful, as is this forum overall in general =)
 
You are all welcome but thanks to everyone who contributed without us all here we would not have got a fix. I was just one voice so well done everyone. Let's hope we get the fix soon. Well done Samsung for not sweeping it under the carpet.
 
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