You are right about i didn't say much information and for this reason my apologies. My pc is about 2 years i bought it in the last months of 2009 and is a quad-core with 4GB of RAM and a graphic card with directx 11 support, using in this moment Windows 7- 64 bits so i suppose that i can run the game in a decent speed for other part i can run most of the actual games without problems.
About OBMM and Wrye Bash. Yes, i use them and special mentioned to OBMM and BOSS. I just started to use Bash some days ago with some difficult and reading a lot of tutorials, my bashed patch is activated and only with some mods merged like VORB(Body mod).
Finally, my load order. It was made with BOSS. Note that some mods maybe are strange like the lovers or tamagoclub, they're adult mods(Don't think bad

) but they were japanese mods translated for normal versions of Oblivion and for other part i didn't find any problem with WAC.
EDIT: For some reason my game is starting to work better, no crash for the moment. I don't know the matter but just i tweak the oblivion.ini, open BOSS, disable the auto save functions like you said and works fine, except the arena that is very laggy. Anyway, any answer is welcome. Thanks a lot.