Well I don't think you read my last post but I will try to help again anyway. It sounds like your 2nd PSU is not connected at all, that is why the GPU does not show up in windows when it is connected (it is not being powered). You have not really provided any description your setup, nor pictures, leaving people in the dark so I will assume that it is simply configured wrong.

I would
A) Not suggest you run this setup
B) If you really want to, try something like this: http://www.frozencpu.com/products/5637/cpa-167/Lian_Li_Dual_Power_Supply_Adapter_Cable.html

It will "bridge" the PSUs to the MB. They will both receive the "On" signal when you power up, and I believe some of the 3.3V will be shared (not 100% on that).  At this point, hooking up GPUs should work. The reason I said A is that the PSU not connected to all the bells and whistles of the MB/HDs/Fans/etc. is likely to go out of ATX spec when a heavy (dual GPU?) 12V load is applied to it (such as running a mining card) with little to no 3.3/5V load on it (the cheaper the PSU the more likely this is to happen). This means that it will supply power in a way that is not recommended, and potentially damaging. But that's your call.

Hope this has helped.

I'm sorry, but no, he is not even one iota correct, except by the most abstract approach to viewing the world. One does not just get to play semantic equivocation with definitions for no reason. This is why I asked snidely if he was a plant. As a plant, CarbonDioxide is your fuel, and Oxygen is your waste product. However, unless some things have changed, most plants do not get on the internet and make stupid little posts about coal power and post pretty and inane pictures. We are humans, and we view things from an anthrocentric perspective, and that is how we define things.

Waste has a few common definitions, depending on what is being referred to. Metabollic waste (what humans exhale), Carbon Dioxide. Then there are Waste Products, which are the unusable/unwanted materials produced as the result of a process, such as Carbon Dioxide release from burning of coal. Before anyone jumps in asks me to "prove it, I want facts not opinons", again I tell you to google it. These are not controversial statements, they are generally accepted parts of the English language. Deal with it.

Furthermore, because humans breathe out CO2, and Plants metabolize it, does not mean that everything is fine and dandy, and we can dump as much CO2 into the air as we want, becuase, hey plants love that stuff! There is a finite amount of CO2 that can be put to use by plants at any given time, just as if a million cows were dumped on every block, it's not great because we get to have steak every night.

I'm shocked that people let such juvenile arguments go by unchecked and as though they have some merit. Especially intelligent people like yourself molecular, who I've seen post helpful/useful/smart posts, should be a buffer against the nonsense. Not to put too much pressure on you of course :p

Tell me by what method it is you (and bobitza) believe that Pools grant coins to people? Even a PPS pool relies on finding blocks to fund the coins which they disperse to their users. The more hashing power you have, the less sense it makes to mine on a pool, as the point of a pool is solely to reduce variance (by the very property of increasing proportional hash rate!), at the cost of fees and sharing the rewards for blocks found with others in the pool.

If you had the hypothetical 50% of the network hashing power, not only does mining on a pool grant whatever pool you are on > 51% power, which is bad, but unless the pool already contributes significant (another appreciable chunk of total network hashing) power on top of your own, you are essentially still mining solo except that you are paying pool fees, and distributing part of the reward that you are almost guaranteed to be finding, to others for no appreciable reason.

I don't think people really understand mining sometimes.

Unless your veins run filled with chlorophyll, I'm not sure that I understand how you are advocating for more carbon dioxide. Humans need something to breathe in, in order to exhale.

That makes absolutely no sense

This is mildly silly. Price of course drives difficulty. What we mean when we say this is not to exclude other factors, but simply that it is what you can see and work with. It is the "variable" so to speak that you can plug in to a function and get a reasonable output.

"Profitability" is of course what people work with on an individual level (and it depends on the price of bitcoin!), but it varies drastically by locale, depending on cost of hardware, cost of electricity, cost of infrastructure, etc. Those factors will be mostly constant within their region, but vary as you look at different regions. How can I graph profitability when it varies by person?

What is the same for everyone? How much the value of a bitcoin is worth in fiat. You cannot determine or control profitability, so it is pointless to try to work that out (the bitcoinx charts only show you the value of the coinage received, not the fixed cost to produce them). So if costs are mostly constant/fixed then profitability will vary in proportion to the price of bitcoin. Hence all you need to look at is the price of bitcoin. A useful reduction.

So, based on their own personal calculations of profitability, people will act semi-rationally and in a predictable manner, therefore using past trends of their reactions to price changes, you can model their future reactions to hypothetical price scenarios. That is the point of graphing Price and difficulty. Make sense?

(This of course falls apart when the constants I mentioned change drastically, as in the case of ASICs, but then you will be able to graph anew when enough data comes out).

Source to what? That coal is a ludicrously dirty fuel source? About 1 second on google will yield more results than you can reasonably shake a stick at, but ok...


CDIAC Report -- http://cdiac.ornl.gov/trends/emis_mon/stateemis/emis_state.html (Brief summary: More Info:
National Resource Defense Council http://www.nrdc.org/energy/coalnotclean.asp
Union of Concerned Scientists http://www.ucsusa.org/clean_energy/coalvswind/c02c.html emissions information (CO2, SO2, Smog contributants, Mercury, Arsenic, Cadmium)
Scientific American Article http://www.scientificamerican.com/article.cfm?id=coal-ash-is-more-radioactive-than-nuclear-waste Residents near coal plants are exposed to more radioactive emission than those by nuclear plants.
Peer review papers on health impacts of coal mining http://crmw.net/resources/health-impacts.php
MIT interdisciplinary study on future of coal http://web.mit.edu/coal/ Study finds coal impossible to use going forward to meet increasing energy demands due to dirty nature without CCS technology.
Whitepaper analyzing CCS http://www.netl.doe.gov/publications/proceedings/01/carbon_seq/p4.pdf (Highlight, energy losses of ~25%, plus other costs for sequestration makes this unattractive at best, though it does reduce emissions substantially).

etc.

In the future feel free to do your own googling. There is no bone of contention as to the effects of coal, so this is not a point that needs to be argued and sourced, and was mostly a waste of time.

What to be done in place of coal, that is the meat for a real discussion.

I think it's fair to mention the hefty fees attached to utilizing most of those services, especially if you are starting with MtGox USD (as it sounded like the question was suggesting). FastCash for example buys coins for ~96-97% of the going MtGox rate, then charges a 1% fee to transfer to PPal on top of that. VirWox requires BTC -> SLL -> USD with not the most favorable rates at either point, and then a withdrawal fee to paypal (2%? I don't remember offhand), BTC-E is I believe 5% for Paypal... etc.

Not saying you shouldn't tell someone about alternatives, just don't forget the big catch involved.

A couple of notes to this. If you think of bitcoin as nothing but something that generates USD, ask yourself this, how can it generate USD unless it has some value of its own? People are not usually in the habit of parting with wealth in exchange for nothing are they?

A second point is that the value of all currency is determiend to a greater or less extent by the faith/belief that resides in it. You believe that your USD will be redeemable for goods and services, hence you value it. If you don't believe on some level in bitcoin as having value, or actively disbelieve in it, you destroy its' value. Counter-productive.

Did you mean 200Amps?

Ah, thanks for that. I had been under the (mistaken) impression that it was infact calculated to mine out exactly 21M by the 22nd century and then once exhausted switch over to transaction fees. That does seem a bit inelegant.

Most likely different timestamps and different block-history. This question does not need to be asked after every difficulty change.

Good, coal is the dirtiest source of energy we have. To suggest that is the way we should go for our energy needs is to be frank, retarded.

Define "connected"

Most modern day GPUs require PCI-E power connectors, if those are coming from the 2nd PSU, then it will draw from that PSU, if not, it won't. Not rocket science.

If you're trying to jury rig some crazy contraption of daisy-chained molex converters between both PSUs, that's not gonna cut it. The only cross connection you really want is the on/off jumper. Otherwise just plug things in directly and you're fine. I do not recommend mixing connectors between the two PSUs, though it's not necessarily a hard and fast rule that I know of.

I hope that this is just a joke referencing zeno's paradox

Also depends on how many ASICs you receive. 60Ghash is a lot of power, but still relatively weak compared to the network. If you picked up 1.5THash, then you're suddenly in a diff boat.

location location location. This probably holds true for lots of places, Hydro cities, and what have you.

CA however is a prime counter example, with "Tiered" pricing on electricity, that rises to > $0.35USD / kWh quite quickly, and a reasonable amount of sunshine, it is quite a simple matter to break even or make hay while the sun shines so to speak on some PV investment. Off the top of my head I'm guessing even a battery system would still be cost competitive with CAs ridiculous power pricing.

MtGox does not do paypal, but you can withdraw it to Dwolla, and then transfer to your Bank account, been a while but I believe that's still the standard method for USD withdrawal (international withdrawals can be done via Wire Transfer).

I agree 100%, it was a wild and crazy ride, that I enjoyed a lot; but I literally barely slept for months, it was like a dry-sauna 24/7 in my room, I'm pretty sure I permanently damaged my hearing from having so many fans running full blast, and trying to convince the people I lived with that the Feds were (probably) not going to break down our door searching for a "Grow" house due to power bills that could only be explained as normal if we were a 10 bedroom mansion in antarctica was a bit exhausting.

Lots of good stories and memories though, so that's something.

In case this was a response to me at some level, I will need to mention that nodes are completely different from miners (though related via communication obviously), which is what was being referenced in this thread.

If you were not responding to me, then that is a fairly pretty picture, though I'm unsure of what line height represents. If it is traffic through the node, that's fairly interesting that middle america provides a supernode somewhere.

The use of Bitcoin as a global currency and the local sourcing of miners are unrelated, mining is in many ways it's own beast, helping to move the blockchain forward, authorizing transactions, and being rewarded for contributing, but basically invisible and separate from the commerce that would use the coins themselves.