I've got a fresh HD 6850 overclocked to 850 MHz with OverDrive.
I heard its possible to run it at 1000 MHz but how?
Please don't educate me about the risks of overclocking!
I've got a fresh HD 6850 overclocked to 850 MHz with OverDrive.
I heard its possible to run it at 1000 MHz but how?
Please don't educate me about the risks of overclocking!
This requires modification of the video BIOS. There are several utilities that can be used to do this, including ATIFlash and ATI Winflash. As this operation involves a low-level modification of the card firmware, if this is done incorrectly, the card will not be covered under warranty if a failure occurs. There are several guides online about this process; you may want to look at this rather outdated techPowerUp article on flashing the video BIOS.
I just read it's also possible using MSI Afterburner by enabling unofficial overclocking in the config-file. (It works even without a MSI-card).