Hmm, I wonder if the 660W is due to the 110V or a lower quality PSU?
Here in Aus (240V), my S5 is doing a little over 1.1THs on my pool ( https://www.kano.is/ ) but at the wall it's only 600W
(default settings) but I'm using a Seasonic 1200W Platinum
Here in Aus (240V), my S5 is doing a little over 1.1THs on my pool ( https://www.kano.is/ ) but at the wall it's only 600W
(default settings) but I'm using a Seasonic 1200W Platinum
Its got to be the PSU as I am running mine at Freq 375 getting 1.23+GH and reading 635W at the wall with a RM1000 Corsair 115V.
Also the packing material changed on my batch 2 from foam packing to bubble wrap.
After 28 hours one board dropped and started showing x's, after a reboot that didn't help I reset the freq back to default of 350 and its seems to be doing fine now. Getting 1155GH with temps at 48/47 fan 3480 and reading 592 watts at the wall. Not sure why that board dropped off at the 375 setting as the temps seemed fine at 50/49?
I've noticed similar behavior in my units (except they fall to 50% hashrate after about 2 days). I suggested that Bitmain add an auto-restart if hashrate falls below x setting to the firmware, but I'm sure we'll see lots of stability improvements with the next firmware update.
I tried an OS reboot (ssh in then 'reboot') but that didn't ever get back up to full speed.
I've just done a full power cycle and that's not really helping either.
Maybe it's the heat here - it is the middle of summer
I cgminer API stat every miner once every minute ... forever
It shows the temp range (today last 13 hours) from 52.5 to 55.0 (a few readings lower during restarts)
Maybe give it a bit longer - coz you need to see from the pool since the old bitmain cgminer in there doesn't handle it.
