Originally Posted by tictoc
I now have three VII's in my workstation. I haven't been running MilkyWay 24/7 on them, but they are going to get a workout over the next few days.
I have been dialing in the clocks, and doing a fair bit of testing, but now they are ready to go. The only issue I have is one of the cards is running about 10°C hotter than the other two. I thought there was something going on with the bridge (EK triple parallel bridge), but after mounting and un-mounting the block 3 times, it appears to just be a contact issue on the one hot GPU. Increased mounting pressure did help, but the GPU/HBM package is slightly convex, so I'm worried that I'll crack the die if I go any higher on the mounting pressure. Temps are still pretty good at 55°C edge and 80-90°C junction.
I pulled my 7970's and 7990, but I may get them added to a spare motherboard I have, for a bit more winter time heating in my office.
I run this VII using the AMD automatic "Undervolt" which yields a 1770-ish clock @ 1.06V core, 0.89V SOC and really tames the hotspot.
Yeah, a convex contact package can be very frustrating. One of my TXps has that and never really could get it as cool as its partner. Went thru all sorts of TIM and mounting(s). Pressure-sensitive contact paper showed the problem... that I learned to live with.
Without a doubt tho, the VII is the best compute card available today for the buck. I had 2 RTX Titans and they were just terrible at MW and most other jobs compared to teh price of the 2080Ti, which has 95% of the capability.
I'm currently running 3 TVs on one rig. They still use the less power for slightly better productivity than the VII (130W vs ~230W each) but still cost too much. Considering how old they are, can't knock the Volta.