graphics throttling when oced?

[Snowman89]

yesterday i was with a friend ho has a 5900xt and tryed ocing a little and i hit 450/900 and then i tryed to game some with it and it went well for maybe 3-4m but then suddenly every thing started to go slower and slower to that the game really felt not playable, i also read that one with ha 6600gt ( it was a little oced) had the same problem.
so is the cards throttling or what is going on??

[Rukee]

yes, and you can test it by running graphics benchmarks. Inceasing the core slowly between runs you`ll get to a spot where adding more core MHz will decrease the overall score even though you notice no abnormalties while it runs. The trick is to find the sweet spot. ;)

[reject]

you can bypass by flashed to a modded bios with thrtl and 3d speeds equal. be careful with 5900xt when the core is at 1.8-2v the little ics get really hot one of mine melted and i havent replaced it yet :(

Rukee: good to see ya mate!

[Snowman89]

you can bypass by flashed to a modded bios with thrtl and 3d speeds equal. be careful with 5900xt when the core is at 1.8-2v the little ics get really hot one of mine melted and i havent replaced it yet :(

Rukee: good to see ya mate!
okey, i dont really care about the 5900xt ust took that as an example because i know it happends to that to, so if we say 600/1300 is max benchable with no artifacts should i then edit bios flash a new with 600/1300 as original clock?
btw getting crazy here soon because all my posts gets in Xtreme bandwidth even that im 100% sure i posted it in Xtreme Overclocking :confused:

edit: what program should i use to edit the bios?
and what is the speed i should change to get it to go 600/1300 all the time?