Question about gfx downclocking and SLI setups

[Stonedofmoo]

Hi guys

It's a well known fact once you connect 2 monitors to a single Nvidia graphics card, the card runs at full clock speeds regardless of use and load.

However I was wondering. If you had two Nvidia graphics cards, and connected a monitor to each card would each card downclock to idle speeds on the desktop, or does that not happen either?

Just curious

Cheers

 

[Rroff]

EDIT: Weird it is running full clocks with latest drivers - never used to with 19x.xx.

I'll test it later on tonight when I restart - my monitors are detected on the 1st GPU atm.

 

[Stonedofmoo]

Thanks dude. Let me know what you find

 

[Arcane]

Does this guide help?

 

[Rroff]

Having problems atm getting a 2nd display to even work on the 2nd card, even with SLI disabled it doesn't seem to be detected. I've not used it for anything other than SLI so I don't even know if the DVI ports are working lol.

 

[Stonedofmoo]

Does this guide help?

An interesting post. What gets me is Nvidia says it cannot be done and it's a limitation of all graphics hardware... yet clearly it can as users are able to override the settings and lower the clock speeds without ill effects.

What that also confirms is a BIOS can be adjusted to make those savings. Anything that can be done in software can usually be done with NiBitor

Cheers all