Minecart 3.0- Case: Storage crate!
- Motherboard: Gigabyte AM3+ UD3
- CPU: AMD Athlon II Dual core 2.8 ghz
- Memory: 2gb DDR3 memory
- PSU: 1200 Watt Corsair ATX
- OS: Linuxcoin running off of 8gb usb stick
- GPU: 3x OEM 5970 800/250 1x Diamond 5970 780/250
2870 MH/s1110 watts at the wall

these are great rigs... if you downvolt and clock to 675/300/.95v you will get much more mh/w (835watts) and much less heat:
unless of course you get free electric and are trying to heat the room

edit: another good setting is 750/300/1.0v
cgminer version 2.3.6 - Started: [May 9, 2012, 11:09 pm] Rig:miner11
(5s):2423.11 (avg): 2424.51 Mh/s | H: 114.75 Q:570142 A:600615 R:4196 HW:0 E:?% U:33.39/m
TQ:? ST:728 SS:? DW:42458 NB:1668 LW:1369102 GF:439 RF:312
Connected to http://gpumax.com:8332 with LP as user ?
Value:
GPU 0: 71.5C 2985RPM 47% 119 | 302.4/303.0Mh/s | 99% | 675Mhz 300Mhz 0.95V A:75087 R:512 HW:0 U:4.17/m I: 7
GPU 1: 67.0C 2985RPM 47% 114 | 302.5/303.1Mh/s | 99% | 675Mhz 300Mhz 0.95V A:75225 R:526 HW:0 U:4.18/m I: 7
GPU 2: 69.5C 2997RPM 47% 117 | 303.0/303.1Mh/s | 99% | 675Mhz 300Mhz 0.95V A:74884 R:563 HW:0 U:4.16/m I: 7
GPU 3: 70.5C 2999RPM 47% 118 | 303.1/303.1Mh/s | 99% | 675Mhz 300Mhz 0.95V A:75161 R:548 HW:0 U:4.18/m I: 7
GPU 4: 72.0C 2536RPM 41% 113 | 303.4/303.1Mh/s | 99% | 675Mhz 300Mhz 0.95V A:75410 R:500 HW:0 U:4.19/m I: 7
GPU 5: 69.0C 2536RPM 41% 110 | 302.6/303.1Mh/s | 99% | 675Mhz 300Mhz 0.95V A:74770 R:542 HW:0 U:4.16/m I: 7
GPU 6: 71.0C 2863RPM 44% 115 | 303.3/303.1Mh/s | 99% | 675Mhz 300Mhz 0.95V A:74802 R:516 HW:0 U:4.16/m I: 7
GPU 7: 69.5C 2863RPM 44% 114 | 302.8/303.1Mh/s | 99% | 675Mhz 300Mhz 0.95V A:75276 R:489 HW:0 U:4.18/m I: 7