Are these fans enough?

[EmperorClone]

Hi all,

I have a machine with the following specs:

• i7-6700
• GTX 1080
• 16GB RAM
• B150 PC MATE Mobo

Housed inside an NZXT H440 case. I've upgraded the stock front fans to Corsair ML120s (3 x 120mm),
I've added top fans (Corsair ML140) 2 x 140mm, and want to upgrade the back exhaust fan to a ML140 Pro.

I'm getting the current idle temperatures:
Cores: 20°C - 34°C
GPU: 49°C

The GPU temperature goes up under load to around 60-70°C.

Is this okay? Do I need to make any further upgrades to the fans/airflow? I want this rig to last as long as possible and to not have any issues around temperature.

Addendum:
**note on the ML120s, these are 4 pin fans. I've connected them to 3 pins the stock fans were connected to. Will this cause any issues?**

 

[EmperorClone]

Top fans are exhaust, front fans are intake.

Temperature of room is (average) 21°C

I had considered having the 3 front and 2 top be intakes because of how powerful they are, but I thought it would make sense to push air from the front and out at the top and back.

I'm open to be corrected about my setup/decisions.

 

[EmperorClone]

That's great help, thanks. I'll test it out tonight while streaming.

As an aside, I've put 4 pin fans into 3 pin connectors. Is this okay?