Samsung 840 EVO read speed drops on old-written data in the drive - Page 321 - Overclock.net - An Overclocking Community

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Samsung 840 EVO read speed drops on old-written data in the drive

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post #3201 of 3282 (permalink) Old 03-24-2016, 05:29 PM
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I'd hate to go through this humungous thread, so I'l ask here, do these drives exhibit any kind of strange behavior and/or degradation after samsung gave us the fix?

Quick and dirty question: Which series would I have to look at nowadays? Something like the 840 EVO, what it used to be before we discovered the glitch that is -- fast & high bang for the buck value.

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post #3202 of 3282 (permalink) Old 03-26-2016, 02:12 PM
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I haven't done any performance restoration on my drive since the patch was released and I'm still averaging 486MB/s across my disk. Seems good to me.
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post #3203 of 3282 (permalink) Old 04-01-2016, 08:22 AM
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Quote:
Originally Posted by mfknjadagr8 View Post

unfortunately all companies do this...to cover them from someone easily running the crap out of a drive then getting it replaced because it fails....if I buy a new car and put 300k miles on it in a couple of years would it be ok to return it for a new one because I wore it out? Nope...that's why must cars have stipulations same as any other product...you can't keep costs down if you let people abuse the system....this is like those who abuse rma will be the first to complain that an rma is getting harder and harder to do...well no kidding....they've replaced 3k units from people who have broken them due to their own over use or overclocked then till they croak then expect a new one....(the rma and such wasn't aimed at you it simply was a tangent lol)

Like in the case of your SanDisk...by the time you do 180 full re writes (not exact) you will likely have moved on to something else and the warranty won't matter much....10 years is a massive warranty tbh...

I don't doubt it lol, I didn't buy the drive for the warranty, and I expect it will carry on well past 90 TBW, altho at my current rate of SSD use and having annexed virtual memory/pagefile, superfetch and sent all temp files to use mechanical drives, I won't even see 90 TBW in 10 years or even before my next drive, though the Ol Sandy X pro will probably be in use somewhere til it dies...

Do your own research and testing, both for peace of mind that (a) What you're reading is true, and that (b) Your gear ain't defective!
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post #3204 of 3282 (permalink) Old 04-03-2016, 03:04 AM
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just did a aligh check so downloaded minitool partition wizard, did a aa ssd benchmark.



iastorA ok 1024k ok said 31k bad.

realigh with minitools

now my speed is as good as day i bought ssd

but am still not 100% sure ile keep checking for a few days.

hope im right as same as rest off you slow down on old date.
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post #3205 of 3282 (permalink) Old 04-05-2016, 08:15 AM
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my speed drop was missalighnment.

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post #3206 of 3282 (permalink) Old 06-01-2016, 10:59 PM
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You know I think the 840 vanilla deserves its own thread so it's more clear and evident that Samsung did not acknowledge nor took any action to address the issues reported by the 840 vanilla series.
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post #3207 of 3282 (permalink) Old 06-01-2016, 11:38 PM
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Originally Posted by xcaninox View Post

You know I think the 840 vanilla deserves its own thread so it's more clear and evident that Samsung did not acknowledge nor took any action to address the issues reported by the 840 vanilla series.

Which is why I'll never buy a Samsung computer component again.

The 840s have a design flaw and the entire line should have been scrapped and replaced with 850s.

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post #3208 of 3282 (permalink) Old 06-02-2016, 06:01 AM
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Quote:
Originally Posted by tronicwhisky View Post

just did a aligh check so downloaded minitool partition wizard, did a aa ssd benchmark.



iastorA ok 1024k ok said 31k bad.

realigh with minitools

now my speed is as good as day i bought ssd

but am still not 100% sure ile keep checking for a few days.

hope im right as same as rest off you slow down on old date.
Realign what and why? Your partitions started at some weird position the SSD didn't like or something?
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post #3209 of 3282 (permalink) Old 06-02-2016, 06:37 AM
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Originally Posted by JackCY View Post

Realign what and why? Your partitions started at some weird position the SSD didn't like or something?
The partition, for speed-reasons.
https://www.overclock.net/t/1226963/how-to-properly-re-align-your-ssd-hdd-partitions
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post #3210 of 3282 (permalink) Old 06-02-2016, 09:02 AM
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Must have installed the system/make partitions some weird way. Normally it aligns itself when created.
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