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Xfire 5870 temps need reduction

post #1 of 11
Thread Starter 
A sub section of the issues here Feel free to contribute

Assuming I final got these xfire cards stable, there still is a temp issue I would like help improving. On a furmark stress test/stability test temps hit 91c avg and that's getting too high I think.



The case its self has alot of natural airflow and is a full size tower.
Is the only way I can fix this involve higher end water coolers and mods to the cards? I really wanted to avoid if possible. At this point the cards are NOT OCed either. and in fact neither is my CPU anymore after trying to just get them to work.

Any Suggestions are welcome, I'm getting a little overwhelmed with issues this week with these.
post #2 of 11
your board has 3 PCI-E slots for graphics cards, if you really want to lower your temps id look at putting the 2nd card in the lowest slot so that you can have some space between the cards.

Also with crossfire your temps will go up 10*C-20*C just because of the added stress on the cards. its fairly normal for a crossfire setup to top out at 70-80*C but 90*C is starting to push it. id look at trying with the side panel fan removed, while it is good for airflow into the case it may be causing the graphics cards fans to lose airflow.

Also use MSI Afterburner and set it to start minimised with windows. HD 5870's fans really only get to 50% speed tops just using ATI CCC, using MSI Afterburner will allow the fans to spin all the way up to 100% if they need it.
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post #3 of 11
I'd try playing a game. See what temps look like then, Furmark make graphics cards way hotter that they do in a normal game, also try setting Vsync.
post #4 of 11
91C is fine for 5870s in xfire. I'd start worrying at over 105C.
    
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post #5 of 11
The front lower fan is useless being blocked by the drive bays, the side panel fan should be intaking.


Most importantly the cards need spacing, stacked cards are ver hard to cool.

My set up, over volted and over clocked they rarely see >80°c, and that's only at 48% fan speed.

Also what is your ambient room temp?

Attachment 208352




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post #6 of 11
Thread Starter 
The room atm is a bit warm, 77 atm but steps are inplace to soon get it down to 70 tops and prolly going to get my new ac for the room.
I could try and put it on the bottom PCI slot but it would be messing with some cables on the bottom the board but its worth a shot.

So I should just disable the Front Intake fan? Or maybe just have it blowing out instead of in perhaps?

Side fan blowing outside air onto the cards good or bad? I would think it would be good but dunno.

Im going to try all the suggestions after I try what Kal777 sugested on my other post. If i can get it stable ill work on temps. If not im out of options and just going to Send it back.
post #7 of 11
Thread Starter 



The second card doesnt fit there well, those cables are just in the way
post #8 of 11
A PCI expansion port gpu duct would help exhaust some of the hot air from your case.

I cant seem to find one, even though I know for a fact I stumbled across one yesterday lol.

Essentially the concept is this item, http://www.avadirect.com/product_det...asp?PRID=17668 , It attaches to the outside of your expansion slots and helps remove hot air from the case, and from your GPU's. If you have slot style gpu's it should help quite a bit.

Having the GPU duct helps me quite a bit, without it my case is about 5c hotter, due to the egg cooler on my 5770.
post #9 of 11
Quote:
Originally Posted by Reidlos65 View Post



The second card doesnt fit there well, those cables are just in the way
That can be fixed very easily with some careful wire management. If you have some zip ties, or bread ties sitting around the house, try consolidating the wires together and move them out of the way.
post #10 of 11
Thread Starter 
its a bit hard to see but the actual plastic plugs stick out to the point where even if there was NO cables, it sill would bump into the card.

| <----edge of PCI slot
||| plugs out of ports on bottom


if that above makes any sense woot

but ya if i have the XFX on top and the HIS on bottom of the top 2 slots its a bit more room but sadly that 3rd slot seems to be ill planned and/or ment for thin pci cards like a sound card
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