After playing Battlefield 3 for something like 30 minutes I get a BSOD, 0x124 I think. Anyway I uploaded everything that was asked in the posting guide, I hope that there is everything you need.
I run Windows 7 professional x64.
I ran a system stress test and the Windows integrated RAM test and everything was ok.
I updated all the drivers
and I think that now I have the latest version of everything.
The hardware is 4 years old(E660 CPU, Asus P5LD2 SE motherboard) and the GPU is a few years old (ATI HD4870), but i played a lot of other games with this PC and never had a BSOD, even with games like Crysis (1 and 2) and COD BlackOps.
Thanks in advance.