Asus 980 ti strix SLI cooling trouble

kenobi_2020

Commendable
Feb 29, 2016
5
0
1,510
Hello, my setup is
Corsair Obsidian 750D (5 case fans, 2 front intake, 2 bottom out, 1 back out)
Asus Z170-AR
i5-6600k slightly overclocked (14%)
Corsair Hydro Series H110i GT
(2) asus 980 ti strix 6GB @119% gpu speed
my 980 cards heat up pretty quick (30min) to about 70 degrees c and the MB gets up around 50 degrees c. this is about when I start feeling performance issues. Is anyone familiar enough with a setup like this to help with cooling the cards/mb. I cant seem to fix the heating problems. I should mention, everything stays nice and cool during typical use, even during long photoshop use. Its when I play games at 4k with high settings. Which I know takes a lot. I just feel like they should be able to handle gaming longer.

 
Solution
I personally run my H100i as exhaust. The difference in temps are negligible but the cross directional airflow on my GPU is better.

kenobi_2020

Commendable
Feb 29, 2016
5
0
1,510
My power supply is corsair cx750m. My cpu cooler is two top mounted intake fans. If i changed my bottom two fans to intake id have 6intake fans and 1 out, in back. Would that be enough out to keep the case cool? Is only 1 out enough for all that intake?