yowanvista said:
imeem said:
I think wiki or sumthing said that ATI and nvidia has been trying to stop users unlocking or something.

This is an example. Guide on how to unlock GeForce GTX 465 into GTX 470 - XtremeSystems Forums
This involves changing the video BIOS which is very risky, it can make your graphics card unusable and may cause overheating
and can even brick it.