Windows 7: BSOD every time I try to play Dota 2

Hi new here so yah.

Lately i've been getting non stop BSOD whenever playing Dota 2 and even sometimes while not playing Dota 2. Majority of it happens every time I get into a game though. Dota 2 is the only game that does this. I can run Diablo 3 for hours with no BSOD or crashes and it requires a heavier load on the video card i believe. Before, it wouldn't BSOD on me but i have no idea what had happened to cause this problem. I have no idea what's wrong with my computer as i've formatted it to factory settings 4 times now with no prevail on this issue. I also have the current drivers for my video card (Radeon HD 6670).

The error message usually in the BSOD is "IRQL LESS THAN OR EQUAL"




Windows 7 Home Premium 64 bit. (Got service pack 1)
Processor: AMD Athlon(tm) II X4 640 Processor (4 CPUs), ~3.0GHz
DirectX Version 11
Memory: 4096 MB RAM
Radeon HD 6670 video card

Welcome
You have given us two dmps (for two BSODs) they are not consistent. One indicates a driver the other memory. Since memory can cause every sort of problem, lets start with memory.
Run for 6 passes.
Then take each stick and run for 6 passes.
Guide to using Memtest86+ - Geeks to Go Forums