Is My Samsung 840-Series SSD Failing?

DrumsXO

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Hey, everyone. I think my SSD might be failing.

Over the past two weeks or so, I've been having to restart my PC way more frequently than I should have to if it was functioning properly. At least two or three times a day it needs to be restarted for me to regain control over the system.

What's been happening is that, randomly throughout the day, the system will begin to lag and become unresponsive. If I try to open a program that's pinned to the dock on my desktop, the icon will flash several times as if it's going to open, but then nothing happens. The same goes for if I try to open a program through the start menu, or directly from it's installation folder.

If I have a program open when this problem starts to happen, often times I can't even get the program to close. More times than not I can't even get the start menu to open, and keyboard shortcuts don't work very well either, such as Ctrl+Shift+Esc to open the Task Manager. If I can manage to get the start menu open and try to put the computer to sleep, the screen will go off as if it's going to sleep, but the PC itself never does. Trying to log off doesn't work, and shutting it down takes about 15 minutes. The only real, quick fix is use the reset button on the tower.

When this happens, I notice that the Disk Activity Light on top of the tower is almost constantly on. There will be blinks here and there, but it's mostly on; as far as I know, that's unusual. In the Event Viewer after I restart the system, there often times will be a series of errors marked as "Disk" under the Source column. This leads me to believe the problem is with my SSD.

A friend of mine had me install Samsung Magician and activate the "Maximum Reliability" preset to see if that helped, but it didn't. In fact, I had to manually set my Page File back to what I had it set at before running the program so I could play GTA V again. I had it set to 6,142 MB and the program set it to 200 MB which caused my system to pop a low memory error when starting GTA V, crashing the game. I think that was the only actual change it made though; the others I had made myself when I first built the system using an SSD Optimization Guide.

I don't know what to do here. Does anyone have any suggestions? Maybe there are some tests I can run that I'm not aware of to see if it's my SSD or not. It's still under warranty for another year, so if it does need to be replaced, it won't cost me anything. I still won't like having to replace it though. :/
 
Solution

*IF* this is the issue you're experiencing, then there are currently two possible fixes if you want to be completely free of it.

1. Buy a new SSD.

2. Run software which regularly refreshes data on your SSD so that nothing is more than a couple months old.

The issue is that after data is written to the flash memory cells in the SSD, the voltage of those cells slowly drops over time. After several months, the voltage has dropped enough that the drive has problems reading the data back, and it goes into long read-error-retry loops until finally after a dozen or more attempts to re-read it gets lucky and reads the data correctly...

DrumsXO

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I'm not sure I understand what my RAM would have to do with it.

I have 8GB of DDR3, which, as far as I understand, is more than enough for my purposes. More RAM than this would only be needed if I was going to be doing a lot of video rendering and things like that. Again, this is as far as I understand it; I could be misinformed.
 

Is the a 840 EVO or Pro? The 840 EVO had a problem where data which had been on the drive for a while become harder and harder to read. The drive would end up spending more and more time re-reading it trying to get it to match the CRC. That would appear to match the disk activity light symptoms you're seeing.

Install the latest Magician and install the latest firmware for your drive. That will gradually re-write old data to alleviate the problem. If you don't want to wait for the drive to finish that process on its own, there are various fixes floating out there which will manually refresh all the data on your drive, restoring it to like-new performance.
http://www.anandtech.com/show/9196/samsung-releases-second-840-evo-fix

I had to manually set my Page File back to what I had it set at before running the program so I could play GTA V again. I had it set to 6,142 MB and the program set it to 200 MB which caused my system to pop a low memory error when starting GTA V, crashing the game.
How much RAM do you have? While a pagefile on a SSD does a halfway decent job of substituting for extra RAM, it wears out the flash cells prematurely. If you don't have enough RAM to run the game, you really should add more RAM.
 

DrumsXO

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This is the exact model of SSD that I have. I currently have Samsung Magician installed (I mentioned this in my initial post), and have already updated the firmware to the latest version. So far, I haven't noticed a change in the frequency at which this problem occurs.

I'll take a look through the suggested fixes in the link you posted.




I've already mentioned this as well, but I have 8GB of DDR3. That's more than enough to run this game if you go by the requirements posted on the game's Steam page (or any other page that shows the game's requirements). That said, I've been thinking of adding another 4GB anyways, once I have the money; Newegg is always running RAM sales.

Is having a Page File really that bad for my SSD? I don't want to ruin it, but I don't want to not be able to play my games either. Perhaps there's some other underlying issue causing me to not have enough memory without the Page File, seeing as I have enough RAM (if you go by the game's requirements, that is)?
 

I believe you've fallen by the wayside. If I remember right, that particular model 840 suffers from this problem, but Samsung has not put out fixes for it.

Your best bet is to run some of the refresh hacks people have put together to address the problem. If this is in fact the problem you're experiencing, those refreshing the data should (temporarily) fix the problem.
 

DrumsXO

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So, you're essentially saying that I need a new SSD if I want to be completely free from this issue?

Great.

 

DrumsXO

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I'm well aware of this. I want to see if there's anything that can be done to fix it beforehand though.

This way, I don't have to go through the hassle of swapping the drive, migrating data, etc.
 

*IF* this is the issue you're experiencing, then there are currently two possible fixes if you want to be completely free of it.

1. Buy a new SSD.

2. Run software which regularly refreshes data on your SSD so that nothing is more than a couple months old.

The issue is that after data is written to the flash memory cells in the SSD, the voltage of those cells slowly drops over time. After several months, the voltage has dropped enough that the drive has problems reading the data back, and it goes into long read-error-retry loops until finally after a dozen or more attempts to re-read it gets lucky and reads the data correctly. All those retry loops slows down the performance of the drive drastically.

Refreshing the data by re-writing it resets the voltage to high enough levels that the drive has no problems reading it on the first try.

Since we don't know if this is actually the problem your drive is experiencing, the easiest thing to do is to test if refreshing it restores performance to like when the drive was new. Try running this program to re-write every "sector" on your SSD.
http://www.puransoftware.com/DiskFresh.html

If performance improves, then yes you are suffering from the issue. And you can just run DiskFresh again every couple months to prevent the problem from recurring. No need to replace the drive.

If performance does not improve, then you are experiencing a different problem and you can ignore everything I've written. You should probably read through the following link to see if 840 (non-EVO, non-Pro) owners experiencing the problem have come up with other ways to fix it.

http://www.overclock.net/t/1519058/the-we-want-our-840-non-evo-ssd-fixed-also
 
Solution

DrumsXO

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Thanks for posting again, Solandri!

At this point, I'm in talks with Samsung to see if they'll honor the warranty and replace the drive for me if I can't get it working again. Hopefully it doesn't come to me having to have them replace it though, as I'll be without my PC for a week or so.

In the meantime, I'm definitely going to give Disk Fresh a chance. If it works; great! If not; at least I tried! I'll also have a look at the other link you posted to see if there's any other possible solutions that don't involve a new drive.