Build your own litecoin mining rig, part 1 hardware – cryptobadger electricity measurements units


First, let’s get the obvious question out of the way: why litecoins? After all, bitcoins are worth more, right? The simple answer is that at the time of this writing, litecoins are currently the most profitable cryptocurrency to mine when you take into account how much each coin is worth, and the time required to mine one. Rest assured that if the situation changes, and another cryptocurrency suddenly surpasses litecoin as the best mining option, the rig outlined in the guide should have no problem switching over to a new coin.

Update 11/26/2013: The Radeon 7950 video cards are sold out pretty much everywhere. They’re still the best option for mining if you can find them, but if you can’t, then the new Radeon R9 280X cards are likely your best option. They do consume a fair bit more power though, so you”ll want to upgrade your power supply as well ( this 1250w Seasonic should support three 280X GPUs without problems). As for brands, I recommend these Sapphire, Gigabyte, and MSI 280X cards for now. I’ll be updating the rest of my guide at some point in the near future with optimal settings for the 280X, so stay tuned.

Update 12/01/2013: If you’re trying to put a rig together, you’ve probably noticed that the above video cards have become nearly impossible to find. I’ve received a few messages from folks that are having some good results using the R9 290 cards, although they’re a fair bit more expensive than the 280X. If you’re itching to build a rig ASAP and can’t find a 7950 or 280X, then you might consider the 290. o gastronomo buffet It looks like all of the current 290 cards are using AMD’s reference cooling design at the moment, so brand probably doesn’t matter too much. Although given a choice, you usually can’t go wrong with Sapphire, Gigabyte, and MSI. Again, remember to pick up a fairly powerful PSU if you’re going to run 3 of these in a rig.

The video cards may be difficult to find, as they’re popular and often sell out. You can substitute nearly any 7950-based GPU, but if you have a choice, go for the MSI or Sapphire cards. They’re not voltage-locked and will save you some electricity in the long run. I have the MSI card that I recommended in all of my rigs, but I’m told that this (and also this) Sapphire card is also a good choice.

The motherboard, CPU, and RAM are all relatively unimportant. The motherboard simply needs to have enough PCI-E slots to host your three GPUs (if the recommended board isn’t available, here is another, or if you can’t find either ASRock, this Gigabyte board is a good alternative). The CPU will essentially sit idle, as all of the actual mining is done by the GPUs. The Sempron 145 is an excellent choice here because it’s cheap and draws very little power (if the Sempron is unavailable, this one is also a fine choice). If you’re going with Linux, you can get away with even less than 4GB of RAM, but I’d stick to that as a realistic minimum on Windows.

The PCI-E risers aren’t strictly necessary, as all 3 GPUs will fit on the motherboard without them. However, airflow will be extremely limited due to the close proximity of the cards, and I really don’t recommend setting them up that way long-term. The riser cables allow you to position the GPUs off of the motherboard in a more spaced-out fashion. I dropped the temperature of my GPUs by nearly 10 degrees Celcius by simply using risers to separate them. electricity and magnetism lecture notes Availability and pricing on Amazon is constantly changing, so check eBay if you can’t find them.

Important: you may also need to create dummy plugs for each of your GPUs. Some operating systems will idle video cards that do not have an active monitor connection, which will obviously kill your mining performance. Dummy plugs “trick” your OS into thinking a monitor is connected, thus preventing attached GPUs from being idled. You just need a few resistors ($1-2 at Radio Shack if they’re not available at Amazon) and these instructions to create your own plugs.

You can get plastic crates in most home improvement stores if you don’t want to ship it from Amazon. I picked mine up at Lowe’s for under $5 each. You should be able to get everything else on the list at Lowe’s if you happen to have one near you, too. As far as tools go, you’ll need a drill and a knife capable of cutting into whatever plastic crate you buy. Assembly Steps:

• Place plastic standoffs on the bottom of your plastic crate, and rest your motherboard on top of them. Make sure that all of the essential ports are accessible (SATA, USB, keyboard, mouse, etc). Use your knife to cut away pieces of the crate if necessary so that all ports you plan to use are exposed. Then plug your riser cables into the PCI-E slots of your motherboard.

I think the post from Joan asking about fans on Sapphire 7950 cards was back in April and I responded to it then. gas 87 89 93 Since then I have successfully replaced fans on 3 Sapphire 7950 cards. Fans are available for purchase on eBay from several different suppliers. It is possible to replace the fans without taking the card apart completely by removing only two screws on the side of the card where the wires for the fans are located. It is also possible to separate the card’s circuit board and there are videos on the internet showing how to do that. The cards have a heat sync the same as a CPU and when the card is completely disassembled, the heat sync must be cleaned so that new heat sync compound can be applied. There are videos on the internet showing how to do that also. Some people have gained performance and lowered heat in the cards by re-applying the heat sync compound on several models of cards. It is not possible to lubricate the fans on Sapphire Radeon HD 7950 cards. I took one completely apart to find out if it was possible. gasco abu dhabi It is not because the driving mechanism is magnetic and when the plastic shaft end that rotates in a small hole wears to a point that it becomes unbalanced, the fan begins to bind as the magnets are closer on one side of the circular enclosure. That is why the fan begins to make a noise by hitting on the shroud cover. The supplier I go fans from on eBay was Yeskystore located in California. Sorry for the long post but wanted to clear up some misconceptions about these cards. I doubt that Sapphire would issue an RMA unless it was purchased new from an authorized reseller and was within the limited warranty period. All but two of my cards were used when I purchased them. There is also a question about how the cards are used.

At this time, if you already have a rig, imo it’s still profitable, but only slightly. I don’t recommend selling at this time, because the backlash of quitters who bought GPU’s and are now selling them at 1/3 what they cost 3 months ago is glutting the market. Now is actually the right time to be buying additional GPU’s on ebay where they are going for around $125 each, and expanding your capacity. Also, by successfully converting to vertminer, the rigs can still be mining profitably even when scrypt mining is taken over by asics.

However, one thing you can’t discount is that even though you aren’t making much today, no one knows if the coins you’re mining today for a few cents each may become worth many many times their present value in the days, months, and years ahead. So…you could be making $2.00 a day now, but find out 3 or 4 years from now that your coins are worth so much that you were actually making $200, $400 or more a day.

That actually happened to me with blackcoin last month. I mined for a little over a week at blackcoin pool when they were worth less than a cent, and at the same time changed some ltc and btc fragments into BC cause I liked it. Came back 2 weeks later from a weekend trip and found out BC was worth over $.30 each (end of April) It peaked and started dropping immediately, but I did sell at a point roughly 20x my investment. So IMO mining cryptos has value simply for the future potential, even if we are only break-even or even a little below right now.

That said, my readiness to take risk was what brought me into your site and my subsequent adventure in the world of altcoin mining, and it has been great. I have emphasized in conversation with others who are following me into bitcoin trader, that the nature of an internet opportunity like this includes the very real possibility that we could come to a morning when we try to log on, and there is no site to log on to, and no trail to follow!

From my perspective, arbitrage between the exchanges with the results btc trader is currently posting, given the price differences that are prevalent at this time between the popular exchanges, is very do-able. I even encourage you, with great appreciation for all I’ve gained from your efforts, to do your own due diligence into btc trader, and to test the water yourself, as I feel it is a present opportunity that is too great to ignore. Of course it may be different at any given time to come, but in all I think it is a thing to diligently pursue while it is in its season, again with funds that can be used speculatively just for the chance of a significant score. gas 4 less In my case, I’m all in!