Quote from: Will2117 on January 25, 2014, 10:45:04 PM

Quote from: crazyates on January 11, 2014, 05:12:00 PM

5x 280x on a Gigabyte GA-970A-D3P ($90 @ Newegg). 2x Rosewill Capstone 750W PSUs. Undervolted the GPUs to 1.019V, and getting 3.5Mh/s @ 1250W.

Here's a similar rig, but with 290s. https://bitcointalk.org/index.php?topic=7216.msg4380855#msg4380855

Hi, thanks for the info. Did this Mobo also require a power switch? The asrocks had them integrated on the mobo.

You don't need a power switch. We have the BIOS to auto-power-on upon power failure, so you just flip the PSU switch off and then on again, and the MB turns itself on.

You will need to turn it on once, before you configure the BIOS settings, but that's pretty easy to do, using a switch from an old PC case, or just simply touching the two power on pins in the MB header together with something metal, like a screwdriver or a metal pen tip.