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Author Topic: newbie here in need of help with power requirement  (Read 455 times)
bitmonster1070
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February 13, 2012, 05:42:46 AM
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Hello, new to all this and want to get all my rigs up.  I am starting with 25    5870's and running them on the gd70 msi boards with 1200 watts psu's.    I only have 100 amp service at my house  and don't want to blow anything so I wired a whole new panel fed off a 60amp from the original box and running 220 instead. My new breaker box has 8 20amp double pole breakers so someday, when I get more dough for cards etc, I can run eight machines.     My rigs should pull approx 5 or 6 amps (I think) each, so I ran 20 amp breakers and 12-3 wire for each machine on their own circuit.   How many machines can I run like this on 220 before I start pulling too much power from the rest of the house, or is that even possible.  I figured running 120 and pulling 10 amps per rig would kill something fast.   Any advice on rewiring my psu's to 220, do I just change the plug end or is there more I don't know as they are supposed to autoswitch according to manual.  They are INWIN commanders and 1 Corsair ax1200.  Thanks for any advice. 
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