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Just sent. Thanks.

Its the graphics card overheating as far as I can tell.  I've turned off SLI and even then I'm getting 99 degrees (possibly higher) and then the system cuts out.  Really quite annoyed.

I've boosted the fan speeds to see if it helps, but it won't be a permanent fix and the PC itself sounds like its about to lift off.

Are you sure both fans are turning? You might try numbering cards, and then swapping cards and see where problem follows. You don't say what machine you have, but if it's an Aurora ... the bottom card can get hotter due to poor circulation.

Have you tried turning up the front PCIe case fan?

Sounds like one card might be bad (or needs new thermal paste) ... you under warranty?

I have an Aurora A4.  I adjusted the PCI fan speed but i don't know which one I'm increasing. Perhaps its both? There's only one setting to change in the thermal controller.

The PCIe fan is near the front of the case. It brings fresh air into the front of the case (to eventually be used by the video cards). I set mine to Manual then set a nice Curve. There should also be a control for the HDD fan. Be sure it's doing something because it helps with general case temps also.

Each video card also has it's own fan but you control those from the Video card driver control panel.

Tech support should be able to help you with all this.

Under warranty yes, and have the 3 year premium hardware and software support.  

But its really frustrating as I only got it 10 hours ago!

I have an Aurora A4.  I adjusted the PCI fan speed but i don't know which one I'm increasing. Perhaps its both? There's only one setting to change in the thermal controller.

I have to take it to 80% to have any type of effect and its really loud at that point.  

GPU 1: 66

GPU 2: 37

With fans running at 80%.

So It could just be that its hot naturally? I've added a curve, thanks for that!

I'm not sure how to increase the speed on the cards, but I'm looking into it.  

For the video fans, you can download a number of programs to help with that. Nvidia has Precision X and a number of people use MSI afterburner. Both can be found at their respective websites. Once installed, set a fan curve like Tesla mentioned for the cards. The Aurora has always had a problems running SLI cards that generate heat due to the smaller design. If you look in your case, the bottom card has only about 1/4 inch of room to draw in air. Good luck.