Basically a friend has gigabyte HD 5850 , and , he overclocked like the second day he got it , to 900Mhz core and 1100Mhz ram , with MSI afterburner , and he doesn't even have any knowledge with overclocking whatsoever , so he overclocked like 200MHZ right away before any help or check on websites if it's okay. Probably didn't do with Vcore voltage anything. And I saw u need to have 1.3Vcore to have 900/1100 i think. I never used MSI Afterburner before , but well I suppose it changes the BIOS of the Gigabyte HD5850 or not ? Or is this program made for all ATI cards. It's obviously a bypass of BIOS locked OC, the Catalyst allows for 75mhz OC on the core , which he claims it's "nothing" , it is small but it's better than nothing. We all know that the limit is made for that because higher OC can potentiall kill the card , and Msi Afterburner seems to not show limits , he claims "i can oc with this program as much as i like" he actually takes this numbers for granted like the card could really go that high, omg , obviously you can go as high as u like until u find the limit your self haha. He claims 1200/1300 is too much? , but like 1150/1200 would be acceptable , he just throws numbers out like they are butter, he doesn't know the actual limit (neither do i yet) , he just has a smart ass. GPU mhz is not the same as CPU , he doesn't have idea , and he thinks 200mhz is not alot, like a CPU , eh 400MHz is not a lot. I overclocked for a year, and had read over countless posts forums and whatever and , actually over a year i got my OC correct. I am familiar with the Gigabyte EasyTune which was extremely unstable and useless program , is MSI afterburner one of those kind of programs, while people using it are just those who brag about their OC and actually don't know shit about it ? You know how are these teens when they get a hold of new stuff they think they know a lot , basically he's so smart he said it can go to 1100MHZ core and 1200MHZ memory just like that , with cooling obviously on automatic. (which is crap, I always have it to 35-40% in HD4870 and that keeps it cool under 70C all the time, but 5800 have even more powerful fan) How can I actually prove him he's doing it wrong , he doesn't believe a thing and says "these cards are so good they could be OCd to 1100/1200 right away" well they are good , but I think that KIND of OCing approach will not work anywhere. Just if it works with the test, doesn't prove that's working , as small game crashes and simple freezes , weeks later , can show when it's unstable OC. I don't really care ultimately , when it brokes he will have a lesson him self, but i don't want to see cards breaking for stupid reasons , and it wasn't so cheap here either.