Unsolved
This post is more than 5 years old
71 Posts
0
24822
February 25th, 2008 17:00
XPS 720 cooling
What is the best way to add additional cooling for dual SLI 8800 Gt cards, under gaming load they are 190-200 degrees. It isnt very stable for long time gaming, it will lock up or the game errors out.
I was thinking of adding another fan in the case or maybe even going to a cooling system.
What do you guys think? What have ya done?
Mike
No Events found!
NovaCX12
66 Posts
0
February 25th, 2008 17:00
Have you tried using RivaTuner? if not try using RivaTuner and setting your fans @ 60%, this should help without having to purchase anything.
http://guru3d.com/index.php?page=rivatunerfaq Look at this, should be very helpfull.
http://downloads.guru3d.com/download.php?det=163 download location.
It is very simple to setup. Im sure many members here including myself can help you if you need further help.
Garred
2 Intern
•
418 Posts
0
February 25th, 2008 18:00
One thing you need to remember is that the Nvidia cards are setup so that they will not damage themselves. First the fans will run faster and if that doesn't work, they will step their performace down.
You didn't mention if your temp was °F or °C but I am going to assume it is °F. If so then those would be normal temps for running long time.
junior06
71 Posts
0
February 25th, 2008 19:00
Ok I will take that into consideration.
When I play games eg; Call of Duty 4 I get a game error and closes the game, I reinstalled the os and same thing, I didnt load any apps.
I saw the temps going from 135 degrees F to 192-200f. I thought maybe the cards are warm, when I move the pc near a open window so the cool air blows n it or vents outside it seemed happier.
I figured I could turn the fans up on the card via ntune.
I never used riva tuner, it looked a little complex in setting up
Mike
junior06
71 Posts
0
February 25th, 2008 21:00
I have to agree, I havent loaded Crysis yet but I get crashes 20-60 min into the game.
I never see the temps go higher then the 27% or so its set to as auto
something doesnt seem right, let me know what you come up with and i will do the same.
I am going to load Riva Tuner and see if i can get it configured.
pezmel
10 Posts
0
February 25th, 2008 21:00
190 degress normal under load? Has anyone ever seen anything from nvidia stating this is normal?
I think heat is your issue and I'm seeing the same issue on my dual 8800 GTs on my 720. I have to crank up the video fans via ntune or I will have crashes. My main issue with this happening is that the cards and or the computer is supposed to be watching the temps and should be making changes to the fans as needed. When I play Crysis I will crash within about 40 minutes if I leave the fans to auto, if I set the fans to max before I start the game, I don't "usually" have crashes.
This topic seems to pop up from time to time and I don't see any specific thread to the issues based on OS (Vista 64bit). I plan on calling support tomorrow as my fans never turn up when the setting is on auto and that means they aren't working correctly or the threshhold is set too high.
Michael
irev210
40 Posts
0
February 25th, 2008 23:00
Your card should run at about 60C idle and 90C during gaming. The video card regulates itself -- when it starts going above ~90C the fan turns up, when it comes back down the fan turns down a bit, keeping it at about 90C. Most people are fairly sensitve to loud computer noise so they engineer the board to run at 90C so the fan doesnt have to spin as fast, thus making less noise.
If you are getting lockups in a game that you believe is due to overheating, you have a defective part. These cards should run at their rated speeds in excess of 110C.
I cant stress enough that people shouldnt decide some arbetrary # what is too hot for a computer to run at. Thermal engineers spend lots of time designing specific parts to run at specific tempatures.
For example, the Intel Core 2 Duo/Core 2 Quad can operate at roughly 100C non-stop. The "best" tempature for a core 2 duo/quad processor is ~72C. 100C may sound hot, but again... it is what these components are designed to run at.
junior06
71 Posts
0
February 26th, 2008 05:00
Is there a way to use the Riva Tuner to set limits, like start out at 29% and when temp rises to raise the fan speed?
Boldie
198 Posts
0
February 26th, 2008 10:00
With Ntune 5 or no Ntune installed at all, all is well and the fans regulate the temperture just fine, the max I get is 67 & 64 Deg C after 2 hours of Crysis.
pezmel
10 Posts
0
February 26th, 2008 16:00
Boldie,
Would you run the ntune stress test for 10 minutes and post your temps when your card fans are set to auto?
I installed ntune due to my fans not kicking in automaticlly. Last night when I ran the ntue 10 minute stress test with fans set to auto, my card temps hit:
GPU 1 - 75 C
GPU 2 - 81 C
I'm not saying the card can't handle a specific temp but I do think that it seems odd the wide range of temps I can generate with the cards.
Now that I know the sound of the cards, when I manually increase the speed of the, I don't think I've ever heard them ramp up during a game.
Michael
Boldie
198 Posts
0
February 26th, 2008 18:00
pezmel
10 Posts
0
February 26th, 2008 21:00
From what I have read and part of the details were confirmed by a Dell tech rep, that some 8000 series cards have a bug with the bios on the card that causes the fans to get "stuck" in the default fan speed setting. So as the cards get hot, the fans don't spin up to make the cards cooler. I can confirm that is happening on my cards as I have manually adjusted the fan settings and I can hear the difference, but I have never heard the fans turn up while I am gaming. I only hear them if I turn them up manually. From what I have read this issue affects the earlier batches of cards. I bought my 720 refurb, so my computer was initially configured in November.
I hope that helps. I'll be calling Dell for an RMA.
Michael
Update: I called Dell last night and they confirmed that it sounded like my cards were stuck at 29 percent on auto and needed to be replaced.