cool beans, glad you got that card! Yes, I'm running 4 sticks of RAM
yes, the mem temps can get up there, but that VRAM runs hot regardless. I do under volt my card. having two profiles. one for normal desktop usage, and my mem temps are 62-66. my other profile is for gaming/VR, and in DCS, i've seen my mem temps hover around the upper 70's and low to mid 80's. there are plenty of good sources for under volting out there on the net, if you're interested.