I think I diagnosed the cause of my BSOD, I want a second opinion

The computer I built BSODed 4 times since late july and so I decided to get to the bottom of it. I first ran microsoft ram diagnostics which told me I had a hardware issue. Afterwards, I ran memtest86+ and immediately got errors. After that, I ran the test on the first stick in the first ram slot and immediately got errors. Now I'm running the second stick in the first slot. So far, the second stick has ran 2 passes with no errors. Is it safe to say that the first stick is the culprit and it's time to do an RMA?

It's sounding like it's that first stick. However, you may wanna test another stick in the same slot (first slot) to make sure it's not the slot that's bugging out but the stick itself. If it's the slot, replace the whole mobo.

2nd stick just made a 3rd pass. After it makes a 5th pass, I will do a pass on the other 3 slots with the 2nd stick to insure it's not a motherboard issue