Hey everyone,
I'm still on my quest to figure out why my rigs are shutting down and after lot's of testing and measuring today, I think I've come to the conclusion that my power supplies are NOT the issue. So in order for me to confirm this, I ask the help of you power supply gurus who know your current/voltage etc.. very well.
5x 280X card rig is split up between two HX850 (Gold Plus) power supplies. So I've got 850*2=
1700W to work with!
Now, the way I understand it is that IF the power supplies are running at full load, the gold plus rating means that they are 87% efficient.
The whole rig measures
~1550W at the wall -> 1550W*0.87 =
1349W supplied TOTAL to the components.
PSU #1 (two cards, mobo/cpu/hd, all risers) measures
~888W at the wall -> 888*0.87 =
773W TOTAL to components connected to PSU 1
PSU #2 (three cards) measures
~650W at the wall -> 650*0.87 =
565W TOTAL supplied to the last three cards on PSU 2.
Seeing 773W and 565W going to either PSU tells me that I'm way below the rated 850W, so I should be fine? Am I correctly calculating all of this? If someone could verify and let me know, I'd greatly appreciate it.
If that is the case then I'm still baffled and confused why my rigs randomly turn off and I have to reset them after a day, a couple days, or even a couple weeks of mining?
Thoughts?
Thank you!
llama
