Quote from: bitrocket on March 19, 2014, 02:44:41 AM

We use APC AP7911 30amp 220V PDUs in our racks, they cost about $130 used on ebay. Most ATX supplies accept either 110V or 220V in so all you need is the C13 - C14 cables.

The PDU is rated at 24A (12 Amps per bank @ 220V) so you can pull about 5KVA from your 30 Amp L6-30p plug.

Our racks draw about 5Kw for 10Mh in hashing power:

Bitrocket 5Kw Rack with 30 Amp 220v PDU - 10Mhash

A) Switched PDUs are seriously the shit. We picked up some used Sentry ones for like $40/each a few months ago. The first time I logged into the web interfaces and turned on our first 12kW of GPUs I had the biggest dumb grin on my face. And now, remotely power-cycling any of our miners is well worth the initial investment.

B) That's a sexy looking rack. Giggity. Wink

But seriously, well done with that. We were gonna go with a rack/shelf idea, but we were trying to cram too many into the rack at a time, and ran into heat issues. We really wanted 5 GPUs per rig, and we were trying to fit each rig within 6U, which meant staying away from stock frames like what you've got. We ended up going with a $70 2'dx4'wx5'h shelving unit and some 1"x2" trim that gives us 2 rigs on each of the 5 shelves.