The gpu fan rpm's can be viewed inside precision xoc's hw monitor. The reason your card is running hotter is because it's clocked up at idle.
Here are the top causes of why a GPU would run at full clocks at idle...
#1 You're running multiple monitors.
Fix: Enable mutil display power saver using nvidia inspector.#2 Your machine has a virus.
Fix: Scan computer using malwarebytes.#3 One or more programs running in the background are using your GPU.
Fix: Perform a clean boot of windows.#4 Power management mode inside the nvidia control panel is set to prefer maximum performance.
Fix: Set power management mode to adaptive then reboot your computer.#5 Running a resolution of 2560x1440 @ 144Hz.
Fix: Change refresh rate to 120Hz.#6 K-Boost is enabled inside Precision X.
Fix: Disable K-Boost.#7 Shadowplay is enabled inside geforce experience.
Fix: Disable shadowplay inside geforce experience OR completely uninstall geforce experience from your machine (highly recommended)