Hey guys!
I was having some trouble with my Windows Vista, USB devices were not detected, and suddenly I started having random BSODs to the point where it wouldn't even boot.
ownloaded all the updates and installed them, then I reboot the system and then I turned it off.
Now I installed the other 2GB of RAM and booted the system up, configured everything in the BIOS to the 4GB definitions (Increased FSB VTT, Chipset and RAM voltage) and saved it. When it gets to the Windows Vista loading "bar" it crashes! Something about "IRQL_NOT_LESS_NOR_EQUAL".
I really need you help guys, thank you very much!