Quote from: 9600 on July 26, 2014, 05:24:18 PM

Quote from: not.you on July 26, 2014, 04:59:24 PM

Quote from: philipma1957 on July 26, 2014, 04:39:12 PM

Quote from: 9600 on July 26, 2014, 04:25:56 PM

Ugh. 10 hours in and Ant1 fell to 411Gh at 218 and Ant2 fell below 400Gh as expected. I wish Bitmaintech would include an option to auto-restart in the firmware. Thinking about creating a small cronjob to do just that...

try setting them to 212.5 freq

your dc to dc convertor gets too warm and your hash rate drops.

Frankly anyone going above and beyond 212.5 on batches 1 to 3 is going to be sorry in about 6 weeks.

If you want higher freq the 212.5 you will need a custom cooling solution for the dc to dc part.

my guess would be a heat sink on it and a fan directly on it blowing air out of a hole drilled into the case. or set the freq to 212.5

still hoping to do a pencil mod with my next 2 coming in.

These s-3's will be a world beater at freq 200 or 206.25 with a pencil mod under volt. maybe under .6 watts a hash say .58 watts

Which part is the dc/dc converter? Can you label it in a picture? I have extra heatsinks and fans and a climate controlled server room. If there is a mod that can fix this (short of replacement) I should have the means to do it.

I actually did this mod for all of my S1s and saw a 1GH inprovement across each unit. I have enough for one unit coming in on Monday so I'll go ahead and try it myself to verify.

The part you are looking for are the eight grey square "blocks" above the heat sink. There were only four-per-blade on the S1

Here they are on the S1s. When they are lined up next to each other the creep from those fans flows across the board and those DC/DC heatsinks pretty efficiently.
I have 12+ running in an industrial office closet with passive intake and active exhaust.

May only be my experience, but when I installed the heat sinks it allows all of the units to go from 198-199@54 to 199-200@51.