Nvidia chip in apalis tk1 baoard getting heated

We have bought Toradex Apalis Tk1 and iXora boards without a Heatsink fan…while connecting the boards together with Display to a 7.5 v dc power supply, i observed that the Nvidia chip on apalis Board getting heated in just 1 minute…My Question is can we run this setup without a fan…Is it normal that nvidia processor getting heated after switch on…

NOTE: Apalis Heatsink Type 3 required.

What exact hardware (module and carrier board) and software versions of things are you talking about?

How exactly does your environment look like (e.g. further system components, cashing)?

What exactly is your target application?