840 evo going bad?

T

tunatime

Well...OK
Joined
Sep 15, 2011
Messages
5,581
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(2) Samsung SSD 840 EVO 250GB
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Model : Samsung SSD 840 EVO 250GB
Firmware : EXT0DB6Q

Disk Size : 250.0 GB (8.4/137.4/250.0)
Buffer Size : Unknown
Queue Depth : 32
# of Sectors : 488397168
Rotation Rate : ---- (SSD)
Interface : Serial ATA
Major Version : ACS-2
Minor Version : ATA8-ACS version 4c
Transfer Mode : SATA/600
Power On Hours : 6942 hours
Power On Count : 156 count
Host Writes : 1736 GB
Wear Level Count : 11
Temparature : 22 C (71 F)
Health Status : Good (99 %)
Features : S.M.A.R.T., 48bit LBA, NCQ, TRIM
APM Level : ----
AAM Level : ----

-- S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
05 _99 _99 _10 000000000004 Reallocated Sector Count
09 _98 _98 __0 000000001B1E Power-on Hours
0C _99 _99 __0 00000000009C Power-on Count
B1 _99 _99 __0 00000000000B Wear Leveling Count
B3 _99 _99 _10 000000000004 Used Reserved Block Count (Total)
B5 100 100 _10 000000000000 Program Fail Count (Total)
B6 100 100 _10 000000000000 Erase Fail Count (Total)
B7 _99 _99 _10 000000000004 Runtime Bad Block (Total)
BB _58 _58 __0 000000066296 Uncorrectable Error Count
BE _78 _54 __0 000000000016 Airflow Temperature
C3 199 199 __0 000000066296 ECC Error Rate
C7 _93 _93 __0 0000000018DE CRC Error Count
EB _99 _99 __0 000000000098 POR Recovery Count
F1 _99 _99 __0 0000D91DE330 Total LBA Written
 
define: "going bad"
Are you having problems with it? In the words of #5: "Need Input"
You can't just go HALP! and provide zero information.
 
It popped a smart warning and thats the smart log for it. Are ssds like hdds when they start tripping smart they are done?
 
Its probably complaining about the 4 reallocated sectors. I don't think that SMART is a good indicator of SSD failure. SSDs tend to die instantly without much warning from SMART.
 
Should this thing allrady have reallocated sectors at 1.7tb?I have a old force gt or some thing with over 70tb and years older that hasn't had one yet.

So just dont worry about it?
 
You have a lot of ECC and CRC errors, I would call Samsung Support and ask what to do.
My old Samsung 830 has:
Host Writes : 20695 GB
C3 200 200 __0 000000000000 ECC Error Rate
C7 253 253 __0 000000000000 CRC Error Count
 
well it still works and windows sees it but i get io errors and any thing large gets corrupted. i knew some thing was up when none of the steam games i just got would work. also every drive test i have tried wouldn't even run or would be nothing but bad blocks or throw and error

i ruled out the port as i moved my other ssd to it and it working fine

what would cause a ssd to work ok reading off it if its old data but trying to write new crap fails most of the time?
 
Did you check the cables and stuff? It could have a a bad nand die go bad. But that would be rare with all the tests they do.It could easy be a separated contact to the chip. It does look like some nand is not allowing data storage any longer.. Old data would have been moved to free areas that were available so that might still be readable but it cant store any more new data as that is the chip that is bad. Still under warranty so get it exchanged.. Other wise open it up and try pressing down the nand chips to see if it works any better. We had chips popping off their sockets before they were surface soldered but those contacts can still crack with weather.. rare but it happens. You might need a heat gun to re solder it back.. If the dram was bad then all your reads would show corrupted files. So even the cpu seems to be working..

anyone else have some other debugging ideas?
 
i tried i need proof of purchase and my brother bought me it form best buy so that receipt is long gone and samsung was like to bad you need to have proof of purchase to have a warranty which is crap because it hasn't even been out 3 years yet.

it not the cable i put my other ssd on it and its fine
 
tunatime said:
i tried i need proof of purchase and my brother bought me it form best buy so that receipt is long gone and samsung was like to bad you need to have proof of purchase to have a warranty which is crap because it hasn't even been out 3 years yet.

it not the cable i put my other ssd on it and its fine
Click to expand...

Something else working on the same cable means nothing, only that chances are it is something else but it does not rule it out.

I never tried returning samsung stuff but others like seagate, toshiba and hd companies will only use the serial number to find out the warrenty of the drive.

If you open the case it also voids warranty so thats a last resort.. But as a last resort you could use a heat gun to try to reseat the chips to the board because this does look like a single chip failure and good chance its just a cracked solder.. You could take it to a shop that does repairs for mobiles and stuff who does SMC stuff.. Maybe not worth the cost though. I saw the EVO 850 128MB for $59 on amazon and $89 for the 256gb.. So it prob is not even worth sending it back for warranty.. Last drive I sent back cost me like $15.. I would rather not spend any money on old stuff thats worthless.

I am not sure this would work, BUT you could try doing a drive scan and see if the bad memory can be mapped out. But that might make the entire drive unusable. But if not, it would give you half of the capacity back and only the bad chip would be mapped out. Not sure if samsung even uses parity error correction which would have fixed this problem since it is only one chip, you could still use it as a hobby drive. All this is a lot more trouble than it is worth. I waste time because no cheap chip is going to get the better of me. But I have not won a single battle yet.
 
Last edited:
tunatime said:
i tried i need proof of purchase and my brother bought me it form best buy so that receipt is long gone
Click to expand...

That's why you ALWAYS scan or take a picture of important receipts like that.
Even if you had kept it thermal paper fades after a couple years.
 
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