On 24/06/10 6:19 AM, Kris Tilford wrote:
The main thing that causes problems when flashing firmware on video
cards is that the new firmware may specify a different clock speed than
the original. You can read the speed of the VRAM on the VRAM chips on
the card, and then if the clock speed of the ROM is too fast, which can
cause video artifacts and potentially burn out your card IF you run to
too long at too high a setting, you can "underclock" the ROM to match
the physical VRAM of the chips and then the card will function
perfectly. You can also use an application such as ATIccelerator II to
set the speed on-the-fly, but it doesn't change the ROM permanently, so
if it isn't loaded as a startup option, you can be in trouble perhaps.
This only applies when the physical VRAM is slower than the ROM setting.
If the physical VRAM is fast than the ROM you can safely overclock the
card instead of underclocking it. Ideally you want the ROM speed to
perfectly match the physical VRAM.
As always, a fine explanation by Kris even a daft should understand.
Great, Kris and thanks.
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