Rivatuner automatic fan controls. My brain hurts

Freezebyte · *Last edited by Freezebyte; 12-02-2008 at 03:15.*

Ok, i've been futzing with the latest version of Rivatuner and Nvidia's newest drivers in attempt to start OCing my new eVGA GTX 260 192. So far, the overclocking has been childs play, but this whole deal with the automatic fan controls is making my brain hurt and I suck at math which doesn't help.

I'm wanting to the fan to ramp up accordingly to the tempature as it increases. I don't mind extra noise during game play so long as it keeps the card cool in the process and then have it ramp back down to quiet mode when im in Windows.

So far I've gotten so it will ramp down to the 40% fan range during low load mode, but im having a very hard time understanding all this T-min, T-Range stuff in regards to making this fan crank up when the tempature increases. It apparently involves a complex math setup in regards to figuring out true vs measured core tempature and then putting in the difference into one of the variables and at this point, my brain just shuts down, I can't comprehend it.

Any of the users be able to baby walk me through the setup on this sucker? I've fiddled with the settings while reading the walkthrough on vaguetech but im still very confused in regards to what does what. I'm somewhat successful with the settings below in getting the fan to increase with tempature but at this point, im still not exactly sure what settings im changing and why.

And UnWinder, if you have nothing positive to say in this thread except to relink walkthroughs, please don't bother, i've already read them and it isn't helping. This is mainly aimed towards other members here.

David Lake · *Last edited by David Lake; 12-02-2008 at 04:38.*

The T stands for Temperature I know that.
OH! The T-Range is how much the fan ramps up per unit of temperature.

Unwinder · 12-02-2008, 07:28 | posts: 10,312 | Location: Taganrog, Russia

Quote:

Originally Posted by Freezebyte

And UnWinder, if you have nothing positive to say in this thread except to relink walkthroughs, please don't bother, i've already read them and it isn't helping. This is mainly aimed towards other members here.

Thanks for a fair warning, it will definitively help to save time on dealing your future questions. And let me still recommend you to peek in ADT7473 datasheet. The parameters you're seeing and misunderstanding are not RivaTuner's ones, these are standard ADT7473 fan control parameters and they are explained in details there. And I absolutely don't beleive that reading the datasheet is not helping.

Grendel_66 · 12-02-2008, 08:04 | posts: 839 | Location: OR, US

Try this guide (section "Advanced Automatic Fan Control"), worked for me.

Freezebyte · 12-03-2008, 23:27 | posts: 4 | Location: Rocky Mountains

Quote:

Originally Posted by Grendel_66

Try this guide (section "Advanced Automatic Fan Control"), worked for me.

Read that, just made me more confused.

Species1571 · 12-02-2008, 20:33 | posts: 11 | Location: Scotland, UK

Why not just keep it simple and make the fan switch between 100% and auto based on the hardware acceleration threshold?

Freezebyte · 12-03-2008, 07:51 | posts: 4 | Location: Rocky Mountains

Quote:

Originally Posted by Species1571

Why not just keep it simple and make the fan switch between 100% and auto based on the hardware acceleration threshold?

Well for one 100% is way too farking loud.

walk2k · 12-10-2008, 06:00 | posts: 4

It's pretty easy actually.

The trick is to disable the auto range adjusting that will just mess up your numbers.

Basically, set T operating and T High limit to 100 (or something your card will never reach) and T low limit to 0.

Then for me, I have T Min on 49 and T Range on 32 (I have 8800GT). That last one is important, it doesn't like all numbers. By that I mean, you'll enter a number but the computer will change it later... So, 32 seems like a good range that works well for me, but you have to experiment with that and T Min to find what works for you.

For me, it idles at 29% (min, card default). Then under stress the fan reaches 50-60% duty cycle, which is loud but cools the card MUCH better, temps are usually in the low 70s C.

If I leave it on stock/default it stays at 29% until core temps climb to 85c or more, then baaarely increases it, to 33% or so and core temps settle in the high 80s (ridiculous).

I don't mind the extra noise during games, I just turn up the speakers! But during idle I want it quiet and it is at 29%.

See here. NOTE that first you have to make another change in the Power User tab AND RESTART RIVATUNER (2nd pic).

(Do this first, then restart RT).

Note that "restore after suspend" isn't currently working - so reboot before you play games/etc.. until they fix it. (?)

Freezebyte · 07-12-2009, 06:52 | posts: 4 | Location: Rocky Mountains

Can someone give me a refresher on this as the links are no longer working

burebista · 07-12-2009, 08:14 | posts: 1,540 | Location: Romania

It's on first post on sticky thread.