Aluminium eventually turned up so I upgraded from the wood 
.
http://dnshistory.org/dump/miner0123.jpg
12x HD5870 (only 9 active atm) - 3 per motherboard.
BB.
.http://dnshistory.org/dump/miner0123.jpg
12x HD5870 (only 9 active atm) - 3 per motherboard.
BB.
nice, but how is there no risk of short circuit with all that metal?