I have 5gb of ram.
I will install new bios immediately after I write this post and let you know if it has solved the problem.
, here is what I did:
I downloaded the newest Windows 7 drivers
from ATI site and unpacked them, than I copied it to usb, than
I boot from dvd again/repair your computer/load drivers/found my drivers on usb, there are two files CH_87739 that can be opened (both are setup information files), I get the list of cards and when I choose mine the error: "the installation has failed" appears.
After I downloaded vista drivers directly from sapphire site the same are on ATI page and the same problem - "the installation has failed"