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Reading up on the Hardware forums should let you know that no mining hardware is really worth it from a profit perspective. Mine only if you miss the heat, noise and smell lol.
Unless of course you were talking about scrypt, then you have a pantload of coin choices.
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Tips:
- Pick 3 pools you would like to support and setup the miner and make sure it connects to all 3 for a little bit
- Have CGMiner set to failover to the other 2 pools should #1 go down
- Set auto-withdrawals to a reasonable number like 0.25BTC
- Send to a wallet that you have the keys printed out on paper
- Keep this wallet offline as much as possible
- Read the thread posted above and then forget about the miner (unless you like tweaking)
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I'll have to pass on that invite. I doubt that i'll live that long.  Me too if your avatars any indication of ur age lol Never troll a troll trolololol |
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As I stated in another post, consider this. I made a pantload off GPU mining Bitcoin, but the only people who got true ROI were those GPU mining in early 2011. I spent $150 for each 6870 and I could have bought 75 BTC instead. Would have been much easier to just buy the coins.
You can still make $ by mining, but if the coin shoots up 10x you would have been better off buying the coins.
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Mining bitcoin is not profitable currently.
Litecoin (LTC) is the heavy hitter in the alts and could be considered Bitcoins' accessory. It's still profitable to mine LTC.
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Cypress huh? Are you stuck with SCE and paying a ridiculous $0.35 KW/h like I am here in SoCal?
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heh this was a fun read in that my oct knc Jupiter has made 40 coins so far on slush (2/9/2014) and I expect to get 45 coins out of it lifetime more or less
Just curious, if you buy bitcoin directly on the same day you pay for your ASIC, how many bitcoin can you get with the same amount of fiat? The only ASIC miners to ever pay back their BTC opportunity costs were Avalon Batch 1 & 2 and a few of the original Jupiter orders. All the other ASICs were a complete BTC dump including my day 1 BFL SC Single which cost 208.5 BTC and only mined 40 BTC to date. Even some GPUs technically are a loss considering I bought 6870s in early 2012 that cost $150 (could have bought 75 BTC with each and there's no way a 6870 could have mined 75BTC) - although nobody expected BTC to go from 13 to 1200 in one year. |
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There are a couple of vendors that ship within 48 hours of your order, Antminer is one of them. Check the hardware subforum for the post. BFL claims immediate shipment but they don't ship out the door for at least 96 hours after the order.
Be advised that you will be losing $ in the conversion of $ & BTC to mining equipment as you will come out ahead by just buying coins (esp at current prices) - mine only to suppport the network or as a enjoyable hobby.
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If you want quiet or efficient build your rig out of R9 270's. Twin fan models are very cool, efficient and quiet. Only 1x 6-Pin 75w plug each.
It's the number of stream processors that determines how many GH you get. They have 1280 SPUs per card.
You get about 2/3rds of the GH for 1/3 of the power and heat!
Just because a card has only 1 6 pin PCIe connector doesn't mean it only uses that amount. It also pulls power through the bus. Otherwise sound cards on the PCIe bus use zero power. 7950s are probably the best energy efficiency (hence their price). R9 270s have more overhead than a 280X. Yes it draws power from the motherboard, but so does the 7950, so that's not a factor, but lets add the 75W M/B slot power too... Trust me, I bought a 7950 and tested it, they are an awful power hog, I used 7850's instead for a good reason... 7950 = 150W+75W+75W = 300W for 1792 SPUs 7850 = 75W+75W = 150W for 1024 SPUs (x2 = 300W for 2048 SPUs) = 256 extra SPUs, +14.3% for the same power. It's even better on AMD R9! R9 280x = 150W+75W+75W = 300W for 2048 SPUs R9 270 = 75W+75W = 150W for 1280 (x2 = 300W for 2560 SPUs) = 512 extra SPUs, +25% for the same power. I don't want to get into a fight, but the math you posted is flat out wrong per what is discussed by 100+ members posting in the Mining/Hardware subforum. You can't just add up the max power rating for the connectors. You can't even use the max TDP rating. You need to use a clamp or Kill-A-watt and find the delta in watts between idle and load. Add on a guess of idle power for each card knowing the 7950s will pull a few more watts at idle. The single most important factor for efficiency is the core voltage, then the clocks, then the ambient temp. You think GPU farm builders are misinformed when they build 200+ rack walls with 7950s instead of 7850s? There's a reason the 7950s are selling for more than 7970/280x. On a 6 card rig with the only difference being R9 270s vs 7950s, the 7950 rig will come out ahead with Mh/s/Watt (although it will lag in MH/s/$). I knew you would counter with, "but.. but.. it don't reach max TDP", but neither does the 7850/R9-270! The only advantage to the 7950/R9-280 is you have a higher density, so have to buy less motherboards, but the 7850/R9-270 requires cheaper power supplies so it's not a cost issue, just a space one. As this post was about noise, rather than space, my logic is undeniable.  FAIL. 7950 is hands down the cheapest to run as far as MH/s/Watt. I dare you to find me a multicard rig with R9 270s that beats a similar rig with 7950. I can do 1260MH/s with 2 MSI 7950 Twin Frozers with just 486w at the wall on a Gold Seasonic 750X running Win 7/I5-2500K/2HDs with an ambient on 80F on 120V AC - I even posted the specs about 8 months ago. Every miner is paying double retail for 7950/7970 because of density  Put up some hard numbers or my "but.. but.." rebuttal smacks you upside the head. |
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Easy to way to weed out the simple minded miners who have no business mining - roasting your nuts on your rig.
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I wanted to build a mining rig with a Sapphire R9 270X GPU. I already have a motherboard, which has 3 free PCI slots, 2 2.0 slots and 1 PCI Express slot.
I would like to ask, are they compatible? Or do I have to buy a new motherboard? If yes, then which is the cheapest with like 3 PCI slots that are compatible?
The Sapphire R9 270X GPU is PCI Express (BCI-e) compliant and your motherboard can run 1 GPU only. So I can't build a rig out of those? But is it still compatible with a 2.0 slot without affecting performance? You can build a one GPU rig only. The R9 270X GPU will downgrade itself to PCI-e 2.0 and run, it will not affect mining performance as that uses very little bandwidth but it would affect high graphics functions such a playing games. Actually 7970s don't even saturate the 2.0 bus, so even gaming is not changed. Any PCIe slot you have should be able to mine, but you will need risers to use the smaller 1x slots. |
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If you want quiet or efficient build your rig out of R9 270's. Twin fan models are very cool, efficient and quiet. Only 1x 6-Pin 75w plug each.
It's the number of stream processors that determines how many GH you get. They have 1280 SPUs per card.
You get about 2/3rds of the GH for 1/3 of the power and heat!
Just because a card has only 1 6 pin PCIe connector doesn't mean it only uses that amount. It also pulls power through the bus. Otherwise sound cards on the PCIe bus use zero power. 7950s are probably the best energy efficiency (hence their price). R9 270s have more overhead than a 280X. Yes it draws power from the motherboard, but so does the 7950, so that's not a factor, but lets add the 75W M/B slot power too... Trust me, I bought a 7950 and tested it, they are an awful power hog, I used 7850's instead for a good reason... 7950 = 150W+75W+75W = 300W for 1792 SPUs 7850 = 75W+75W = 150W for 1024 SPUs (x2 = 300W for 2048 SPUs) = 256 extra SPUs, +14.3% for the same power. It's even better on AMD R9! R9 280x = 150W+75W+75W = 300W for 2048 SPUs R9 270 = 75W+75W = 150W for 1280 (x2 = 300W for 2560 SPUs) = 512 extra SPUs, +25% for the same power. I don't want to get into a fight, but the math you posted is flat out wrong per what is discussed by 100+ members posting in the Mining/Hardware subforum. You can't just add up the max power rating for the connectors. You can't even use the max TDP rating. You need to use a clamp or Kill-A-watt and find the delta in watts between idle and load. Add on a guess of idle power for each card knowing the 7950s will pull a few more watts at idle. The single most important factor for efficiency is the core voltage, then the clocks, then the ambient temp. You think GPU farm builders are misinformed when they build 200+ rack walls with 7950s instead of 7850s? There's a reason the 7950s are selling for more than 7970/280x. On a 6 card rig with the only difference being R9 270s vs 7950s, the 7950 rig will come out ahead with Mh/s/Watt (although it will lag in MH/s/$). |
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sign up at cex.io and cloud hash there refferral link in my sig
38 posts and that's the best you can do, request a referral? In answer to the OP, you'll eventually make your fiat investment back but the money would have been better spent buying the coins directly. Since BTC is the most profitable SHA coin right now, it would be better to mine BTC and buy Peercoin with the BTC - at least from a profit perspective. |
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Difficulty alters the price through secondary mechanisms (like changing the number of people mining). 1/2 all BTC have been mined so the effect is decreasing.
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Great, now I need a Bitcoin mobo for my Bitcoin CPU.
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Since BTC price has dropped you're really better off buying BTC directly. It's worth buying hardware if miners are quitting and difficulty is going down (which is not the case currently).
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As noted above, past record cannot determine the pools future (other than to show the quality of their connection ie low orphan rates). A pool that maybe have solved 20 blocks in the last 3 hours may get 0 blocks for the next 3 hours - it happens quite frequently.
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If you're going to CPU mine, DO NOT mine scrypt (kinda pointless now). Mine a CPU restricted coin otherwise you're pretty much just spinning your wheels.
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If you want quiet or efficient build your rig out of R9 270's. Twin fan models are very cool, efficient and quiet. Only 1x 6-Pin 75w plug each.
It's the number of stream processors that determines how many GH you get. They have 1280 SPUs per card.
You get about 2/3rds of the GH for 1/3 of the power and heat!
Just because a card has only 1 6 pin PCIe connector doesn't mean it only uses that amount. It also pulls power through the bus. Otherwise sound cards on the PCIe bus use zero power. 7950s are probably the best energy efficiency (hence their price). R9 270s have more overhead than a 280X. |
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BFL will be facing multiple lawsuits this year and I'm not sure you would want to put your eggs into a company that may have to pay severe fines and restitution.
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