Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 464. (Read 1260350 times)

To upgrade from an 100amp service to a 200 amp service where I live is 2500 bucks to install flat rate..low end which is a very easy switch in my case anyway I was told..
....all the electrician's in this area charge the same rate.....the city I am in requires that the local utility shut down service and also that the electrical inspector and an electrician ARE PRESENT and it is signed off by the Electrical Inspector before the power utility can turn the power back on..so essentially you are paying for the utility service the electrician and the electrical inspector to stand around...and pay them for the morning shot ..to get everyone there...

and yes I asked 4 Electrical contractors they were all within $100 usd of each other and also if ....say the elec inspector or electrician is not on site when this
is done..then you guessed it ..the utility company will not turn power back on....a big headache

will try to slip by with the 100amp..don't have house a/c nor forced air furnace nor major other drains on the elec panel ....so should be OK the panel and wiring
is modern....

but heat out of the basement is my current challenge oh...and again this is CITY rules....along with the State rules and I think just the local utility protecting
their butt cause everybody else is so anal about all this!

Searing

You can always suggest this improvement to the landlord. And if it keeps you there safe and happy, (s)he will invest easily in any electrical modifications improving your quality of life. Then it becomes an improvement at "no cost" to you!

usually the US/CANADA is wired with a Hot 120V, neutral (0V return), and Ground (0V safety). Changing the neutral wire for a select outlet to run on the secondary phase of 120V will give you 240V at the outlet and work with a 'typical' PC power cord.

however, running 240V in a 120V socket is against code, so it should be switched out to a 240V-speced outlet.

I find this argument thoughtless. Those of us who don't own our own homes are often prohibited from making these kinds of modifications.

I tend to agree.

The invoices will contain the adjusted price i.e. original minus compensation.
Gadi

What price will SP-Tech be declaring on the invoice for Customs ( original purchased price or original minus compensation ).

About $0.022/kWh here, once we get above 200 kW of usage. About $0.04/kWh before that. The SP30's efficiency doesn't enter into my configuration decision calculus yet. Risk of broken equipment does, but the chance of improving the performance of all 68 of our machines with some simple mods largely offsets that.


Thanks! I'll take a look.

Zvi, I'm expecting significant diurnal variations in ambient temperatures in our datacenter. Does minergate take ambient/intake temperature into account at all for determining optimal settings?

Perhaps it would be good to add an adjustable ambient temperature coefficient for some of the major variables, like the PSU power limit. If the thermal shutdown temperature for the PSU is 150°C (what is it actually? I have no idea), and ambient is 20°C, that would be a temperature gradient of 130°C for the PSU's waste heat to flow over. For the sake of easy calculations, let's say the PSU goes into thermal shutdown if you use settings that result in more than 130 W of waste heat being generated in the PSU. That would indicate that the PSU has a thermal resistance to ambient air of 1 W/°C. If you then dropped the ambient air down to 5°C, you would expect to hit thermal shutdown at 145 W instead; if ambient rose to 35°C, then you'd hit shutdown at 115 W. As I understand the limit finding algorithm, you'd end up running your PSU at settings which work in the worst-case scenario (115 W) even during the best-case scenario (145 W) if you saw high-amplitude temperature fluctuations.

Another option might be to first learn what settings work at one ambient temperature, then after that process has completed, create a few separate learning context variable sets (structs or whatever) for different temperature bins, using the original ambient temp settings as a template, and refine the new bins independently. This would probably be significantly harder than simple temperature coefficients.

email sales@ with your order #

What price will SP-Tech be declaring on the invoice for Customs ( original purchased price or original minus compensation ).

Hate to repeat myself, but could we please have the change log for the latest 1.5.4 firmware for SP10?

Thank you.

Come winter, it gets very cold here in the north east, and it's very easy to keep ambient temps of our little (read: 150sqft) farming room down under 10C, even with 20kW of Antminers. Can we expect more than 4.5TH/s if we're on 220V, and with extremely low ambient temps?

Consider time diff ...
It's early morning in Israel, and Zvisha (probably) worked very late yesterday (today)

Hate to repeat myself, but could we please have the change log for the latest 1.5.4 firmware for SP10?

Thank you.

Spondoolie-Tech didn't "have" to make the SP30 a pre-order. ... It is the manufactures decision to use your pre-order money for R&D and making the product ...

Adding a 240 volt circuit to most houses is trivial and cheap. If you can afford 4K for a mining device, you can afford another 50-200 dollars for a new circuit or, worst case, a new panel with a new circuit. I find this argument disengenuous. Calling out a company for missing their target is fine and dandy. From what I've seen, Spondoolies has acknowledged that they made some errors and are working to rectify it. But bitching about a circuit or two is just plain trolling. This is high school level stuff.

To those of you who don't know how to do it and/or are afraid to, an electrician is not THAT expensive. It boggles me how people are willing to spend a small fortune on these devices and then bitch because they have to spend a pittance more to make their house compatible with the CLEARLY commercial grade equipment.