Topic: I'm in the market for a used mining rig (Read 3959 times)

So you'd let your kids eat the apples some stranger gave them while trick-or-treating? Takes all kinds, I guess. 

It's pretty funny. Even the light from the monitor ultimately becomes heat when matter absorbs the photons.

Silly boy....

1/4 of the time it takes bitcoin for confirmations

LOL... from the description: "I've been running this server (hidden in the drop ceiling of my work) for a year now."

THATS FUNNY!

Found a rig on ebay. http://www.ebay.com/itm/Bitcoin-mining-server-2400-mhash-s-8x-Sapphire-ATI-Radeon-5830-Video-Cards-/121019863443

Also, the space is relatively small, and heat pumps are large machines.  Heat pumps don't really do to well around here, too many really cold nights in winter.

Heat pumps transfer heat, what is the heat-source? It sounds like he will be in a cold-climate (winter time) which he is hoping to stave off via electricity, not ideal for having ready sources of heat to be moved in.

Interesting thought though, I wonder how the efficiency compares to BTC generation, taking into account initial price, if his climate weren't so cold.

Your recommendation sucks. He's looking at possibly making some money. Not tossing it out the window.



With that rig to obtain 2.6 ghash you're spending over $1200 only on GPU's.



I'm offering a 2ghash system in and around $600 plus shipping. .

wow.. paranoia state.

Heat Pump

You get 3-4 times as much heat compared to simply using a plain heater/GPU.

I'd be surprised if ANY place in the US at least will buy a consumption product from an average joe.. wayyy too much liability for lawsuits if some jerk decided to put a chemical/drug/whatever in with the water before freezing it.....

Here is a better idea.  But an ice making machine.  It's cheaper than a bitcoin miner.  The heat generated will heat your space and the ice made can be sold for $2 a bag at your local convenience store.  It's the same idea as you have but probably will lose you less money.  (I haven't done the numbers.)

I recommend getting a 7970 rig. I have one in quad fire and it dominated on benchmarks and gaming. And gets 2.6ghs.

Yeah sorry man, but hardware is A) large, B) heavy and C) worthwhile for other uses.

You are very unlikely to find a 1kW machine for < $500, no matter how many GPU miners jump ship. For example, the 5830, the cheapest, most energy wasting, strongest (in its class) GPU on the market pulls like 300MH/sec? Roughly 7 to 2GH/1kW, even at $50 per card, that's already $350, toss in a 2x $25 CPU, 2x $25 Mobo, and $100+ PSU + cables/extenders/splitters/etc. (I dont remember the wattage on the cards but 180/card sounds reasonable, you can do a crap PSU I guess, and potentially blow up the system or burn down your place), and before shipping you're at $500 bucks, for potentially the most discounting you can do on a system outside of slitting your own neck.

BUT, hope springs eternal, I don't want to say that NO ONE will ever discount their system beyond that.

^ Not as fun second pm sent

I'm still considering your proposal, but your price point is still beyond the total amount of bitcoins I presently possess.  I'm also looking into the possibility that gas prices have gone down enough that it would actually be more economical to pay for a direct vent gas heater and a new gas line, and use the cost difference to buy some more bitcoins.

I'm torn really.  It's looking like the gamer market is going to have to come down pretty far for a GPU rig to be within reach, even if the cost of the power isn't a concern of mine. Again, I expect that to happen as GPU miners switch to ASICs or close shop, but that might not be for weeks.  It's not in my own interest to get into any hurry here, so I won't be down that.  I'm not buying a shiny toy, I'm buying an investment.  I might not be doing it at all, if I need the funds for something else.  I live in an old house built over 100 years ago, with 3200 square feet of (heated) living space; plus a bonus room over the detached garage.  It's the bonus room that I'm looking to heat here.  However, another opprotunity has dropped into my lap.  I have a big family, and even 3200 feet is getting to be a bit tight.  A really large house (6 bedrooms, 4.5 bathrooms, a claimed 7K square feet) has appeared very close to where I live within my means, but only barely.  It's even older than mine, and likely needs much work done, including being converted back into a single family home from a stint as a multi-family.  It's in a section of Old Louisville (http://en.wikipedia.org/wiki/Old_Louisville) known as "Millionaires' Row", and it's basicly the result of the real estate crash.  The landlord who rented it out as three, two bedroom apartments aparently gave it up to the bank.  If I end up moving, I might buy a rig or two later, but more likely I'd give out rackspace in the cold sections of the house (beyond the reach of the toddlers) in exchange for the waste heat paid for by the actual owners of said units.  But only under the condition that they only run during the local heating season.

Throw a price at me... and I'll get back to you with a quote on a rig.

If I'm losing money at half price, it's not a good deal.  I can't make it up on volume.  If the components are worth that much more to the gamers, sell to the gamers, but eventually that market is going to be saturated as well.