Random BSOD's - Even happened in safe mode. (Noob)

[Akhanoth]

I've recently bought a new PC where I put it together with a friend (with more hardware-knowhow than myself) - on my first night of gaming with it I encountered the first BSOD (whilst playing CS:GO), but it didn't reoccur. One week later, whilst playing DotA2, it happened again. When I restarted my PC, it happened again. This continued a few times before I gave up trying to get into windows. I opened the BIOS, and saw that my motherboard and CPU were both below 35 degrees, and I continued to boot it in safe mode, where it happened again.
The day after I called my more tech-savvy friend, who wanted to know what the error message was, and I booted my PC (assuming it would BSOD again) - but it didn't. During the week I also played some video games, ranging from SC2, CS:GO, DotA2 and Wolfenstein: The New Order.

What am I to do?

 

[axe0]

Hi Akhanoth,

Welcome to the 7forums.

Please visit Windows Update and install every update available, it may take a couple of times to get them all.

The crashes are

BugCheck [COLOR="Red"]1A[/COLOR], {41790, fffffa800a817100, ffff, 0}

[COLOR="red"]MEMORY_MANAGEMENT (1a)[/COLOR]

Meaning memory problems.

Please test your RAM with MemTest86+

Diagnostic Test

 RAM TEST

Run MemTest86+ to analyse your RAM. MemTest86+ - Test RAM - Windows 7 Forums

   Note

MemTest86+ needs to be run for at least 8 passes for conclusive results. Set it running before you go to bed and leave it overnight. We're looking for zero errors here. Even a single error will indicate RAM failure.