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Just went Crossfire and saw a HUGE spike in temps!

post #1 of 10
Thread Starter 
So I just purchased and installed a Sapphire Xtreme 5850 to complement my XFX non-reference 5850 and got a little worried with my temps. With just the XFX I had temps of around 36c idle and 63c load when running BIONC but now I see temps of 46c idle/GPU1 and 70+c load/GPU1!

338

This is a shot of the temps during BIONC and it has me worried. I tend to set my fan speed settings a fair bit higher than most just to be careful but these temps are just ridiculous. Is there anyone that has any advice on how to get these temps down? My room temps are a bit high because of a new pellet stove we recently switched on in the house, maybe 80 degrees Fahrenheit. I'm using my sig rig for any case info.
post #2 of 10
At those temps there's nothing to worry about if that's all you're hitting. Temps increase when you crossfire because one card is blowing the warm air onto the other, causing one card to always be hotter than the other. Also, temps in general increase because there's another heat source. The best thing for you to do with MSI AB (if you haven't already) is set up a custom fan profile. For example, when my GPUs 82c, I had the fans ramp up to 100% fan speed.

Unfortunately, unless your case has really sophisticated airflow, you'll never get "good" temps when running multi GPUs on stock cooling. You'll only get good temps when adding a loop.
Edited by pjBSOD - 11/20/11 at 2:10am
post #3 of 10
I'd like to add to this post that cable management is important for maximum airflow in your case. If OP already hasn't, try to clean up some wires. Also might want to think about adding a side panel case fan. I have a 200mm Megaflow and it lowered temps on one of my gpus 8C.
    
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post #4 of 10
I saw the same thing when i added my second 5870. the problem is that the secondary card is blocking the fan intake for your primary card and for some reason CCC keeps the primary card's fan speed lower than the secondary card. so the primary card idles and loads much hotter than the secondary card. without proper ventilation this can also affect your NB and your CPU temps. there really isnt any way to keep the temps down near the secondary card unless you put the fan speed on both of them to 100%.
Edited by Nemesis158 - 11/20/11 at 2:19am
post #5 of 10
Tried to edit my previous post to say this but it wasnt showing up.
The only way to really keep your temps on the primary card in check with the secondary card in a CF setup is to turn the fan speed way up, like 80-100%
post #6 of 10

It's very much case dependant. I have an Antec 900 so have 2x120mm fans blowing cold air across the case (one directly between both GPUs) aswell as 1x120mm blowing cold air on top of them. I sit at 30c idle. 61c 100% load. Before without the extra case fan my temperatures were much higher when I ran both cards together. Just chuck a 120mm case fan above them. That should do the trick. Either that or manually set the fan speeds in Overdrive.


Edited by Lifeshield - 11/20/11 at 2:32am
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post #7 of 10
Sounds like they are a bit too close together.

The Storm Scout case should be roomy enough to accommodate some cable management and airflow.

If that doesn't work, buy some beefier fans or consider aftermarket GPU coolers.
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post #8 of 10
Thread Starter 
Thanks to everyone for your advice!

@E-Peen: The airflow in my case does indeed suck something fierce rolleyes.gif I have been looking into a water cooling set up for my system but it is very confusing especially with the different makers and metals. Any suggestions for GPU blocks for the XFX and Sapphire cards?

@Luminosity: Cable management is not going to happen with the length of the cables on this RaidMax PSU and limited space I have to work with. Thinking of upgrading to a larger case and maybe a Seasonic modular PSU and cable extensions for better management.

@Nemesis: Yeah, I guess I'll have to crank the fan speed up to like 90%. You know if that would cause any major damage if I run it like that for any major period of time?
post #9 of 10
Quote:
Originally Posted by TheSocialHermit View Post

Thanks to everyone for your advice!

@Nemesis: Yeah, I guess I'll have to crank the fan speed up to like 90%. You know if that would cause any major damage if I run it like that for any major period of time?

afaik GPUs are suppose to be able to withstand temps of 125C, though im not sure about the rest of the components. you should be fine if you're under 85-90C i think
post #10 of 10
OP
Sorry late to harp in.
I had twin xfx5850's for a time-
I played with a Memory fan (minus legs/faceplate)Kingston I think-
I wedged them at front of card,vertical like,against HD cage-to blow into card(s) "Batman" open grille,forcing some add'l air out of case.
Alternate-place same dual fan across rr of cards(0ver vent slots-outside case)to suck air out the back.
Antec Spot cool worked same,offered switchable speeds,directability.
A little loud on full power,better on NB fan header or some kind of controller.
Velcro/sticky tape-experiment.
Helped a few degrees,crank up the volume.Less worry.
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mistress
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Zillagod
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Hard DriveHard DriveHard DriveOptical Drive
Patriot Pyro SE 240 GB  OCZ Vertex 3 120GB( for Steam) WD Caviar Black 2TB HP 8xBD 
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H100+(4 Cougar 120 PWM)  Cougar 120 PWM exhaust NZXT 180mm OE NZXT Sentry2 
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OCZ Vertex 3 240 GB Seagate 750 GB Momentus XT LG 12x BR/DVD  Cooler Master H70  
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