GPGPU issues with Dell T630

Dear Dell support! Dear forum members!

I have a Dell T630 with a GPU enabling kit installed, which otherwise works well without a GPU.

For testing, I have acquired an NVIDIA P100 GPGPU, which I have managed to get working within the system, shows up in nvidia-smi, etc., but I am experiencing an issue with system cooling: once the P100 is installed, the PSU fans immediately ramp up to maximum speed and stay there constantly, even though system temperatures remain well within normal operating ranges.

I could otherwise manage the fan profile via a custom ipmitool script, but I have came to the conclusion, that the PSU fans work by an internal logic, that cannot be controlled with ipmitool.

I am currently using two 465W PSUs. The system functions normally otherwise, and the GPU appears operational, but the noise levels from the PSU fans are excessive.

Has anyone encountered similar behavior when using non-certified GPUs in the T630?

Is there a way to adjust the fan curves or modify the thermal sensor thresholds through iDRAC, BIOS, or another method to prevent the PSU fans from running at full speed unnecessarily?

And the most important question perhaps: 

Will upgrading the PSUs resolve this issue? In the owner's manual, it was clearly stated, that for 250-300W GPU-s an 1600W and 1100W system is required. However, since the support for the P100 is not official, I would like some feedback regarding this matter.

If the issue cannot be resolved otherwise, what GPU solutions does the T630 enable? Does anyone have any experience with using e.g. GeForce GTX TITAN X, or other GPUs?

Any advice or suggestions would be greatly appreciated.

Thank you!