Originally Posted by tsm106
LOL, that's a lot of ear bleeding fans.
Are your temps are good?
I currently run 3 7970s + 3820 off a single rx480/rx240/rx120 with ap15s in push and temps are good, cards top out 52c max. If I add another 7970... I will need another 200w -ish of cooling from somewhere. Hmm. Now begins the clever hunt for more wattage dissipation. I'm going to fashion a swing out bracket to hold a 240 above the mem slots. That will make 9 ap15s.
The temps on the GPUs are very good I think, and stay within 40-45 degC even after folding for several hours. The CPU tends to run hotter and temps are in the range of 55-60. What is your view on my temps?
Of course, as for those bloody fans, thereby hangs a rather long and frustrating tale. They are far too loud and this was a major issue (design mistake) for me...but...after a lot of messing around, I finally sorted out a nice solution with the two FC9 controllers. The temps I quoted are with the fans at around 2K or just below (pumps are also on one of the FC9s) - at 3K RPM I would say that the temps were 3-5 degs less all round. One thing I learnt but which I'm sure you guys all know, is that ambient temperature is the most critical issue - that more than fan speed or pump speed appears to move the temps up or down the most. Water has an amazing capacity to dissipate energy (specific heat coefficient) - finally I found a use for my Physics degree...you may find that getting rid of the extra 200W is not as difficult as you think.