UPDATE:
It seems that I did install the OS on the new SSD after all, so I guess the problem lies with the other SSD? It's working properly otherwise, so what can be the problem/solution?
See screenshots:
Disk Manager
Properties of Disk 0 (the one I can't initalize)
Properties of Disk 1 (The new one)
After one of the two SSD drives in my laptop failed, I replaced it with a new one. i simply replaced the hard drive and have not tried to rebuild it or access any of the data. After replacing the failing SSD, I tried to do a clean installment of windows (8.1). I could not install windows on the new SSD, so I installed it on the old one instead (that is, of course, the other SSD in the computer, not the failed one).
However, when I try to initialize the drive in Disk Manager, I get the error message "Data error (cyclic redundance check)". The SSD is completely new from the store. Also, I don't understand why the disk manager shows 477 GB unallocated when the drive is only on 240 GB. The SSD drive I bought was this and since it comes in 480 GB as well, I guess there's a small chance that they gave me the wrong one but I highly doubt it.
Screenshots:
Disk Manager
List of disks from Disk Part, don't know if it's of any help since the non-initialized disk is not there:
Adding to this, it seems like my computer is working harder which should have something to do with the reinstallation as well. I can't test this since I don't have any numbers from how it was before, but since my laptop (MSI GS70 2QE) has two modes depending on intensivity in usage, shown by the light on the power button, it's easy to tell. Now the red light is always on and the fans are sounding a lot, before this only happened when I used demanding software or games. (I understand that "Red light" is very nonsensical terminology only relevant to this specific model, but you get the point.)

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