Will a EVGA SuperNova 750 G+ be enough to support:
i9900k (not OCed at the moment)
Gigabyte Aorus 2080Ti Extreme (oced to 1750) (recommended PSU 750)
NVME drive
Case fans (6)
NZXT Kraken x62 (included in case fan count)
 
Note I built this system and did some bench marking and all is stable. 
 
I dont even think the fan kicked on for the PSU (or I have not heard it kick on).
 
Thanks!

Run the numbers:
 EVGA Power meter - Easy to use:  https://www.evga.com/power-meter/
 
For a deeper dive:  Power Supply Calculator - PSU Calculator | OuterVision
 
 

Cool GTX
Run the numbers:
 EVGA Power meter - Easy to use:  https://www.evga.com/power-meter/
 
For a deeper dive:  Power Supply Calculator - PSU Calculator | OuterVision
 
 

+1