Welp, As I noticed lastnight. none overclocked and fan profile at 100% @ 55"C, my top 1080 Ti hits about 90'C

Second GPU runs at less then 70, so found it a little odd. So.. Deciding to go the EVGA cooler route for the 280 CLC https://www.newegg.com/Product/Product.aspx?Item=N82E16835288008&ignorebbr=1&nm_mc=KNC-GoogleAdwords-PC&cm_mmc=KNC-GoogleAdwords-PC-_-pla-_-Liquid+%2F+Water+Cooling-_-N82E16835288008&gclid=Cj0KCQjwwevLBRCGARIsAKnAJvcoEbGzeO0UF2-Ah9hONVd1-vTVZ0l-9rlPS3bbACm4TZBzmXG11p0aAqc6EALw_wcB&gclsrc=aw.ds

Would that help or is there something wrong with my 1080 Ti? I'm planning to swap the two around to rule out an issue.

Because it uses asetek as its core, and more importantly, the way it attaches mounting brackets, it can be used on GPUs, but only if you find the right bracket. It won't be included as the CLC is being marketed as a CPU cooler and only have CPU brackets in the package.

But on a slight tangent, it's not really worth buying this specific CLC, unless you plan on side mounting the GPU (with pcie riser cable). You should easily find something with similar cooling capability and for less $$ (since it most likely won't have RGB).

Edit: also, what ever CLC gets used, care must be taken as the rest of the board will suffer if there is no cooling for them. I mean, aside from FE/reference shroud cards, all after market cards use single massive heat sink designs to cool all components (even split heatsink cards usually have the two attached somehow). And without proper cooling, you'll easily exprience what I went through with a hybridized Titan X Maxwell... a fried card. Because the GPU stayed cool, the stock blower fan never spun up enough to cool off the smaller, but also heat generating components (VRM, MOSFETs, etc). The new EVGA hybrid kits include additional parts for those small parts. Too bad they're usually out of stock.

Isn't 90C past the stock thermal threshold (83C?)?

Like Cool GTX, I am curious about the case airflow. Or lack of?

Personally I think you have too much exhaust and not enough intake.
 
 
 
 

Good idea with moving to a top mount CLC for the CPU. I think your generating to much heat in one area. I think you'll see some big difference in CPU temps and overall case temps.
 
What sort of load are the GPU's under when your seeing those temps? Are you sure the fans are working correctly on the top card? I'm not sure how Precision X handles fan control for SLI.

howdy2u2
Personally I think you have too much exhaust and not enough intake.
 
 
 
 

+1

Idea.. what do you use for a smoke test

QuintLeo
Based on your picture, your entire issue is you have VERY LITTLE SPACE between the cards, which isn't allowing air INTO the "top" card to get good cooling.
 
 You need to figure out how to move the bottom card so it's not as close to the top card, or you need to replace the bottom card with a "short" card to allow at least ONE of the fans on the top card to get good airflow.
 
 Water cooling the top card should also cure the problem.
 

Cant move it. It's a Z97 board, the PCI-E under the current two is locked @ 4X 2.0

next years tax returns will be a rebuild, of which i'm unsure if i'll go i7 6850K, or the i7 7700K and that'll be the leap to DDR4

Both cards fan speed maxes out at 3717 but it fluctuates ALOT.

Squall_Rinoa86

Both cards fan speed maxes out at 3717 but it fluctuates ALOT.

 
In your GPU OC software Increase hysteresis - its probably set to a default value of 0, try 3
 
If your fan speed increases at say 70C, then with hysteresis set to "3" the GPU would have to cool to 67C before the fan would slow again
 
 

Ordered the CLC, a new fan near the GPU's, Powelink x2 for the gpu cables... hoping to get this resolved...

I would try the side as intake not exhaust.

Squall_Rinoa86
Ordered the CLC, a new fan near the GPU's, Powelink x2 for the gpu cables... hoping to get this resolved...

Generally takes it in from the side and front expelling it both inside and some out. Fan blowing on them from the side helps. It helped when I swapped side fan to intake

Your card on top is cooled by the heat of the bottom card.
Put your hand over the card at the top, you will feel the heat.

You know you can get the power links from Amazon for cheaper than EVGA right?

Your Rig looks Very Nice
 
ACX type coolers - I like Full Tower case