BSODs! What is my cause?

Nov 10, 2018
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Total Hard Disk:
Old Hard Disk (1TB - Backed Up Data)
New Hard Disk (1 Month Old) (1TB - My Data)
Very New Hard Disk (5 Days Old) (500GB - No Data)

Shall I use a faulty new hard disk (I assume it to be faulty) as my secondary hard disk? As I'm getting a ton of BSODs with my PC, I have replaced the RAM, but not the new HDD (1 Month Old) yet, so I have bought a very new hard disk (5 days old), shall I use that as my primary hard disk (500GB) (5 Days Old) to install my OS and then use my Secondary Hard Disk (1TB) (1 Month Old) for my data usage?

Seems a bit confusing because, all I get is BSODs in my new 1TB Hard Disk (1 Month Old) and I want to solve it, that is my only motive. I have even replaced my old RAMs (4GB+2GB) with a new 4GB RAM as the old RAMs' Gold Plating had faded.

Thankfully I have my data backed up on another old Hard Disk which is of 1TB (But it has grinding noises issues and slowness)

Can anyone help me out with this please?

I am ready to answer any other of your further questions!