Upgrade to GTX 980 Ti, worried about in-case temperatures

Santiak

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Oct 19, 2015
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Hi folks,

I'm currently pondering whether or not to upgrade to a GTX 980Ti from my good ol' GTX 690.
However, there's a few issues I can't quite figure out myself, mainly whether my case can handle the increase in ambient temperature with an in-case exhaust GPU.

To give a bit of background information:

My GTX 690 is a reference rear-exhaust model, it's served me well, and it has no real sign of tear - a bit of visual wobble on the fan when looking closely, but no noise or any other issues. I've been finding myself limiting FPS and reducing graphic settings to keep it below 80C - although I realize now that may just be me fighting the design rather than any signs of age.
The most I've seen it reach was 88C during a bout of Warhammer 40k: Eternal Crusade, and that was most likely because the game insisted on utilizing only one chip, and the one not getting the airflow at that.
Fallout 4 sees it peak at 81-82 with near max-settings, shadows at low-medium, and capped 60FPS.

My case is a Cooler Master CM 690 II Advanced, with 1x140 Noctua fan in front for intake running at lowered speeds to reduce noise (950RPM I believe), and 1x140+1x120 exhaust fans at the back and top behind the CPU, the 140mm running at normal speeds, and the 120mm depending on the case temperature.

My CPU has an old Arctic Freezer Extreme Rev 2. cooler, where I recently replaced the fan - although it should be mentioned that one of the plastic sides that holds the fan in place in between the heatsinks dropped off, so I've jury-rigged it back on with cable strips, and there's been no difference in temperature before or after the repair.

The Motherboard is an ASUS Maximus IV Extreme.
PSU is a newly bought Corsair RM850i.
-- Note: I've tucked away most cablework behind the cases backplate, but unfortunately a stray 4-pin to the EZ Plug socket was too bulky - thanks to Corsais bendy release design - to feed through any nearby hole, so I had to settle for it "wrapping" (not closely) around the GPU, but otherwise there's no cable blocking airflow as such, save for a few smaller ones resting at the buttom of the case.


Temperatures:

In case temperatures (Mainboard, SB) range from 28 - 35 C depending on load, with the NB usually stabilizing at around 42 C regardless of load.
PSU seems to stabilize at around 38 - 42 C, still not sure when the fan kicks in, though.
CPU idles at ~33, load at ~40 - 48, spikes to ~56, and on rare occasions 58C (only seen that once)

The question:
Seeing as my GTX 690 is a rear-exhaust blow design, I imagine the case is relatively spared the temperature increase thanks to it.
My question is, would my case - considering the above temperatures - be able to withstand the increase in temperature an in-case exhaust design would bring with it?

I've been primarily looking at either:
EVGA GTX980Ti Hybrid
ASUS GTX980Ti Strix
ASUS GTX980Ti Matrix
Or a reference design rear-exhaust, although that's the "no other option"-option, as the GPU temps and noise aren't all too desireable.

Could I upgrade to any of these and still not worry about the temperature?

Cheers for taking the time to read through all of that, any input would be greatly appreciated!

On a final note, I should mention that I'd be more than willing to throw the money at a Matrix if it poses no harm to the rest of my build, but I wouldn't mind the slight decrease in clock speeds of a Hybrid if it saves me from worrying about the rest of the build, so it's not so much a worry about cost. Merely if my rig can survive the upgrade. ^^
 
Solution
I don't think you have much to worry about. You have very low temperatures all around. An axial card would increase the temperature a little, but you have sufficient exhaust to get rid of it.

djreedj

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Jan 14, 2016
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Your rig sounds like it would survive the upgrade fine. Cable management has been proven to not really affect temps of other components so your little cables here and there wont do much to hurt you. The GPU upgrade to a Hybrid is a fine choice as your GPU will be cool under load and is one of the faster gpus on the market. Good luck with your decision!
 

Santiak

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Oct 19, 2015
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I'm always amazed by the speed of the replies on this forum. ^^
I've actaully been worrying if my temperatures were too high (thanks to some paranoia brought on by failing case fans and a sudden interest in how well my rig could run Fallout 4 at release), so that's certainly great to hear!

Hope you won't mind a follow up question or two:
- How much would it raise the temperature, ~5C or the like?
- For my Mainboard, NB and SB, what temperatures should I try to stay away from?
-- I've heard anything from "not above 40" to "not above 70", so I'm a wee bit confused in those regards. Knowing the range that such components could handle, and the amount of ambient temperature increase inside the case I should expect, would be very reassuring - I've of course tried to google it, but couldn't find anything, unfortunately. :)
 

Eximo

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I don't track my motherboard temps too much, bet anything under 80C is okay for most silicon. But that is just best practice. 105C is the shutoff for most devices. (I had a 8800GTS that idled at 80C and pushed 100C when gaming, still hasn't failed)
 
Intel states that the Hot Trip Point of the Intel P67 chipset (i.e. the chipset used on the ASUS Maximus IV Extreme) should be set to throttle at 108°C (Tj,max).

The Catastrophic Trip Point should be set to halt operation to avoid maximum Tj of about 120°C.