AGP voltage on a 6800 gt

[moonboy403]

i've heard that the 6800 gt runs on only 1.3v
but according to the easytune ultility that was given by gigabye
my agp voltage is at 1.5.....i can't lower it
i've wondering if it'll cause any long term problem on my card
any suggestions?

 

[reallyscrued]

1.5 is nominal, i dont know why anyone would want to run VGA at 1.3 unless u want a silent system. most motherboards do not allow undervolting of VGA, this is actually the first ive heard of it. u will probably lose stability with .2 volts less, i wouldnt reccomend it.

 

[PliotronX]

This setting causes a lot of confusion, but it actually does not dictate any voltage on the video card, it's the voltage to the AGP controller. Raising it above the default 1.5v has helped some with stuttering or stability issues.

edit- there are also certain motherboards where the northbridge chipset's voltage is tied to the AGP controller so raising it also helps with high FSB overclocking on those (I think the Asus P4C series is one example).

 

[moonboy403]

thanks for the help guys

 

[CP5670]

The BFG tech support people recommended using 1.6 for a GT. It didn't make any difference in my case but I just left it at that.

Is there any way to change to change the core/memory voltages themselves short of doing a bios flash?

 

[JBT]

Thee 1.3 You are speak of is the GPU core voltage which has NOTHING to do with Vagp in the BIOS.

The only way to change the vgpu is to either do a vmod or flash the BIOS. Personally I don't think it is worth the risk for the VERY minimal performance gain. Are you really THAT bored with the card already that you want to play around with that??? Just play with all the beta Drivers out there as they likely will give you more performance than a few more mhz.

 

[CP5670]

I don't intend to mess with it but was curious if it's even possible (without a flash), as is the case with the main cpu and memory.