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Showing 6 of 6 results by aksinas
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Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs
by
aksinas
on 23/04/2015, 11:53:49 UTC
Has anyone opened the case of a SP3x to clean the dirt with a vacuum cleaner??

i have.

though i used a stiff brush not a vacuum. Be very gentle on the fans.



I used a brush too and then a vacuum.
Also, remove the PSUs and use a blower to remove the dust but try not to blow directly on the fan.
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Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs
by
aksinas
on 22/04/2015, 14:09:58 UTC
one of my psu on SP30 was dead, so I placed a new psu


If I fireup both psu's (the org one that still works and the new one I have soldered) machine just start working and mining using all the ASIC's.

If I use only the org psu (either top or bottom position) the machine works only 50% wich is normaal.

BUT: if I only fireup the new psu the unit wont work.... the led on the controlboard dont show up.

My best gues is that the controlboard somewho dont see the second psu that I have add to it.

any idea? probably it doenst get any power as I have directly put the new psu to the hashing board.



http://s28.postimg.org/o594zd9al/sp30.jpg


This was to be expected, there are a lot of control lines coming out of the PSU, voltage, temperature, fan RMP, etc.
Since the controller is not getting any feedback it does not know that the PSU is there.
What you should do is to replace it with an identical PSU. If you can't get one from SP then try eBay. This PSU is a very common type.
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Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs
by
aksinas
on 20/04/2015, 12:50:31 UTC
Is there an estimate on when the new models will be available for sale?

Any leaks or guesses on performance and efficiency?
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Re: Mining with Solar energy
by
aksinas
on 17/04/2015, 08:41:45 UTC
Hi all

Its possible to mining with a solar energy?
maybe buy a device who support 12v and plug in the electricity in this adapter and mining with free electricity?

anyone try this?

I worked with a guy who used solar power to run his miners.  I never saw his setup, but he used to rave about it.  I'd be interested myself but I think the cost would be prohibitive.

If you are an alternative energy enthusiast then it will be fun.
At the current Bitcoin price level it is very hard to make a profit even with zero cost electricity. How is that possible? Depreciation of mining equipment.
If you add to your equipment cost the photovoltaic panels, charger, batteries, and an inverter probably you will never break even.
Keep in mind that machines do fail, and add the maintenance cost.
In the ideal case where you don't draw any current from the batteries you will have to replace the batteries within 3-10 years (depending on battery quality, charger)
If you already have an autonomous system installed and even if your charger is dumping energy during peak hours I would still not run miners on it.
Turning on and off your machines is not the best thing to do.

Also, it tends to be warm when the sun is up which means that you will probably need air conditioning otherwise make sure you have stock of at least electrolytic capacitors.

On the positive side now, if you are connected to the grid and your electric company allows net metering then go for it!
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Re: Mining with Solar energy
by
aksinas
on 15/04/2015, 19:00:13 UTC
I heard that at the current bitcoin price (~220 USD) it is better to sell solar energy directly to grid than mining bitcoin with it.

If your PV station is connected to the grid and your electric power company offers you 'net metering' then probably it can be profitable to mine coins.
In this case you only need the panels and an inverter.
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Re: Mining with Solar energy
by
aksinas
on 15/04/2015, 13:19:15 UTC
Probably your best option is to use a Raspberry Pi with some USB miners but don't expect to earn much.

Keep in mind that if you want to operate the miners during the night you will need batteries(and a charger).
The more you drain the batteries the shorter their lifespan will be.

Calculate your ROI very carefully and if you do setup a large installation make sure it is insured.