if you buy gigabyte crads dont forget to order new gpu fans the gigabyte gpu fans are totaly crap the get stuck after 2 to3 weeks on full mining they heat up and the plastic around the fans will start to melt and boom fan now has some new breaks hehe
Gigabyte uses a few different fans with their cards. Some are crap, most are fine. I've got a rig of RX 480/470 working for ~1.5 year non stop, all dusty as I haven't cleaned it at all (! gotta actually clean those, I guess), and none of them failed or even started making any noises. Got a few different nvidia cards made by gigabyte, 1060s and 1080s, and again all the fans are still working fine. The only fans I've had failing so far are the ones on Palit 1060s (stopped spinning after a while) and one Nitro RX480 started making all kinds of noises (but still spinning).