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-   -   GTX 580 dual screen weird issue, HELP! (http://www.nvnews.net/vbulletin/showthread.php?t=160828)

Pennyboy 03-21-11 06:13 PM

GTX 580 dual screen weird issue, HELP!
Hi all,

I have just noticed something strange with my new setup and searching the net has not turned up any info that i would consider useful, just the usual fool going on about something they no little about, hence why I am posting here hoping someone can shed some light on this for me.

Anyways to cut a long story short my ASUS GTX 580 stock speed idles at around 58 degrees C. But when I switch back to one screen the temps drop back to around 41 - 45 degrees. Why is this happening? I have a Cosmos S case with 4 x 120mm exhaust fans 1 x120m front intake and a hugh side 200mm intake fan so it suprises me that I am getting temps this high and why with two monitors? 1 LCD is 22" @ 1680x1050 the other is a 24" @ 1920x1080. Is 58c too high? or something i should worry about. Again, searching on the net some people say 'yep its fine' others say 'hell no thats not good'. I know people here on nvnews know what they are on about so I would love to know for sure 'its ok'. but why with two screens would the temps be higher? very weird!

Pennyboy 03-21-11 07:30 PM

Re: GTX 580 dual screen weird issue, HELP!
Hi all just found this http://www.legitreviews.com/article/1461/19/

Seems its a hardware limitation!! on a high end card that you pay a premium for I would expect better, oh well.

xorbe 03-23-11 06:30 PM

Re: GTX 580 dual screen weird issue, HELP!
Let the power management kick in and turn off the screens. When you move the mouse and the screens turn back on, what does it idle at after that?

My 570 drops by 30+ watts after power save at the desktop! ie, when it's on again, not while it's still off! Definitely seems like buggy behavior to me ...

I have dual screens of mis-matched resolutions.

Pennyboy 03-24-11 01:46 AM

Re: GTX 580 dual screen weird issue, HELP!
I will give it a try and let you know. This issue has been documented in the release notes of the Nvidia driver.

xorbe 03-25-11 11:05 AM

Re: GTX 580 dual screen weird issue, HELP!
You can use MSI Afterburner to drop the 3D clocks to minimum for the desktop. Just crank 'em back up for gaming. Along with the quirk I noted above, that puts my 570 around the desktop power usage of my old 260. Before the system cycles through the screen power save, idle desktop usage is significantly higher, I think closer to 50W than 30W.

Yes, they say it needs two screens of same model / rez / dvi clocks to use the lower power gfx mode.

I hope the next gen cards bring some power savings.

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