Should I RMA?

nico1a5

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Hello
I have two WD blue 500GB HDDs, both WD5000AAKX-00ERMA0
I got the first one (D drive) in July 2012, to replace my previous drive that starting getting so low performance, that I couldnt even use the OS.
I've used it until october from last year when I got a new drive, and since then I've had it unplugged in my case between the other two.
I got the second WDblue (B drive) in november 2013 after I noticed the broken one had warranty.

The D drive is currently slower than the B one
Some benchmarks:
B drive:
http://i.imgur.com/IdhLJkU.png
http://i.imgur.com/U34Pwo1.png I donk why why I used this program which gives apparently random result, but I can try with another one if needed
It got 113mbps in dxtory benchmark the in the first days when I tested it, now 80Mbps when 75% full

D drive:
When 75% full:
I've saved too many screenshots that now I dont even remember which one is each lol, some are 32/64bit versions(can be seen in the pic), and some using almost all cpu in other programs(the results seemed a little different)
http://i.imgur.com/A51dVHU.png
http://i.imgur.com/b45bAUY.png
http://i.imgur.com/YmkRcHH.png
http://i.imgur.com/GTQGWF6.png
http://i.imgur.com/6Alz43B.png
After deleting most of the files in the drive:
http://i.imgur.com/DKl06Gr.png
After formating it:
http://i.imgur.com/POg2F5a.png
http://i.imgur.com/o5Z44NY.png
Now gets 80mbps in dxtory benchmark

I've gotten a low risk event id 36 in acronis drive monitor while doing the first benchmarks a few days ago, and two high risk id 57 ones today when doing the last benchmarks (the drive was not specified in the second events, but I guess it was the D one). Disk health is at 100%


So my question is: should I RMA the D drive? it has about 5 days left of warranty
Thanks in advance ^^
 
If you get speed fall THAT FAST and you get 2 errors on it, PLUS those speeds, you might as well RMA the drive.

Data Security: PLEASE low-level format the drive before you RMA the drive.
A tool that I recommend is H.D.D.L.L.F. It low-level formats the drive beyond recovery. You can get the free tool here: http://hddguru.com/software/HDD-LLF-Low-Level-Format-Tool/
 

nico1a5

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I've copied the exact same data from B to D to do some real benchmarks:
B1 D1
B2 D2
B3 D3
B4 D4
B5 D5
B6 D6
B7 D7
As you can see in some, the D speed is less consistent/stable. Is this bad?

About the low level format, Im not going to do it bacause I dont want to mess up. I will just do a secure erase with ccleaner, I dont have any important data anyways.
The errors I've gotten were apparently not a hardware issue, and I havent got any new ones since then.
 

nico1a5

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Ok thanks for the details but that was not needed the previous time I did a RMA
I've just started the RMA case

And again this question:
Can the less consistent/stable speed of the D drive be considered as "bad"?