Not sure if i should upgrade some part or not after i bough my gtx 1080

[mastodonde]

SO right now i have my configuration as :
System : Window 10
My case is : Nantec Nine Hundred Two (wich the top fan not working anymore )
Motherboard : msi z97 gaming 5
My power supply is a: 650W (going to change for a corsair 860W)
CPU : Intel Core i7 4790K
RAM : 12 Go DDR3 at 666.78 MHz
Graphic card right now : NVIDIA GeForce GTX 570
But i want to upgrade to a 1080
-Harddrive: Hitachi HDT725040VLA380 de 372.61 Go SATA II
-WDCWD10EADS-00P8B0 de 931.51 Go SATA II
-SSD SSD2SC240G1CS2754D117-514 de 223.57 Go SATA III
-Two monitor
-In the case i have the retailer fan for the cpu
The two front , one on the back (And i dont know about the fan on the side if it should push in or out the air).

I have a few question : Should i change some other part in the computer for my upgrade to the gtx 1080 (or what could be the bottleneck of my build )
-Should i change some of my fan inside or case because i am not sure how it going to handle with the temperature (since right now my motherboard goes to 60/65C and with two game goes to 70 C with gaming)*(same think for my CPU the heat goes to 60/70 C MAX 75 C)

P.S : Hope i am not missing a part of my computer
and i am not going to overclock anything in my build

 

[GraySilencer]

ok i bough the corsair 400c with a cooler master evo 202 . for the fan should i buy some and wich one ?

Since the new case has direct fan airflow to the components you probably won't need as many fans. I would get this one for now and put it in the second 140mm front intake:

http://ca.pcpartpicker.com/product/cfyxFT/corsair-co-9050048-ww-970-cfm-140mm-fan-co-9050048-ww

If your temps are still not satisfactory, you can add two more to the top (facing down) later on.