How much to get the fan tabs? Or any way I can do them myself? What fans that fit in the front is the best airflow output?
Getting 70/70/59/70 Celsius on my 4 x 1070 (3 hottest are blower style) when i close the front With the key. Leaving it open i have 67/66/51/64, but server will be moved to a facilty requiring to be secured.
12x tabs will all required fasteners is $15. However, you can get away with just using two tabs to mount the two outer fans, thus 8x tabs is $11.
I would recommend getting blazing fast 25mm thick fans, or switching to 38mm thick fans (which are the size used in the video).
You should also experiment with removing the filter material that is in the door, to see if that reduces temps significantly.
-Rich