Bitcoin Forum

As I'm a hobbyist miner and I need to make a few posts I thought I'd make an effort to see what other hobbyists use. Mine:

2 AMD 6950 graphics cards I got off Ebay
and a beast of a computer I built a year or two back running Xubuntu.

Used to generate around 1BTC a week (I've had some issues with OS instability and cards overheating lately), I don't pay power bills as my work was kind enough to let me rig up a machine in their server room.

Hoping to get on the ASIC bandwagon at some point but not overly worried about this gold rush atm, seems a lot of people have faith in the things.

I have 15 BFL Singles mining away with 15 SC upgrades dancing in my dreams. Every email I get I hope it is BFL asking me to send them in for upgrade.

Wow, I really envy you guys who found some free power! In Denmark, the kWh rate is about 0.36 USD, so it's pretty expensive to mine over here, haha.

I turned out to have a Radeon 5850/Core i5-750 SFF PC lying around, so that's been setup for mining. Definitely going to upgrade this though: removing the (albeit well cooled) SFF case, and buying more GPU's. (Too bad those PCI-E riser cables seem so.. rare?)

There seems to be a lot of hype around the Radeon 7950, but man, that card is just insanely expensive. Over here, a used 5850 is around 1/4th the price - and maybe I'm just lucky, but they seem rather easy to get hold of as well.

I've struggled to find any 5 series cards in the UK, there's quite a lot of 6 series cards flying around though on Ebay, considering expanding but I'd rather not if these new ASIC miners do change the game that much, I'd rather save some BTC for a 2nd Gen or a second hand 1st Gen.


Are your FPGA quite stable to run then?

15 BFL ghezzz how did you get those you must have known someone on the inside

Must have cost a bomb admitantly

Im mining with 4 X 7850 / 2 x 7770 / 2x 7950

Makes about 3000 KHashs consuming 1,5 KW/h :-D

Im payinf 0,28 $ per Kw/h, so at the moment its really worth the effort.

What types of chassis do you use for those machines (and perhaps in particular, the quad-GPU one)?

I have a well-ventilated SFF case for my single-GPU system, but I guess I'll have to use milk crates or something when it reaches 4..

Intel ATOM N2600 (1.6 GHz) CPU
:(

I 2nd this request... Can you share more details?

Damn.... Sounds like you knew someone over at BFL...   :o

I'm using my laptop  ;D

just a 7950, but mining litecoins to convert to bitcoins

I just got into mining in the last few weeks, more as a hobby than to make serious money. I built a dedicated mining rig with a single 7870 that gets about 412 Mh/sec and just added a 6670 to my "server" PC which yields an additional 110 Mh/sec or so. I did a lot of research beforehand and still ended up spending more money than I'd intended/hoped, but that's another story that's not terribly interesting. All told, I probably spent $300 on video cards and another $200 on miscellaneous components for the dedicated miner.

I'm not sure what my power consumption is, but I have a Kill-A-Watt meter that I'll hook up at some point to measure it accurately. I also just confirmed my pre-order for a BFL Little Single, so I hopefully won't be left in the dust too badly when the ASIC revolution drives the difficulty through the roof. At that point I'll probably repurpose my GPU's for Litecoin mining. I placed by BFL order before the price hike, so that makes me feel a bit more like all this gear might eventually pay for itself.

I think D1rk D1ggler is talking about having 15 BFL FPGA units, not ASIC devices.

Same as this guy, using an ASUS laptop with a 3000something ATI card. Averaging 30mH/s. I get .001BTC a day  ;D

2 x 7970's @ about 1300 Mh/s woo-hoo!

3X XFX 7970 Black Edition. Used a chassis i had and built a second floor for the GPUS.

~2GH/s

I'm selling it BTW (http://j.mp/106pvNE"), if somebody wants to buy.


http://i.ebayimg.com/t/Complete-Bitcoin-Miner-2-0-1-85-gh-s-/00/s/MTIwMFgxNjAw/z/MEMAAMXQQQhRfqGW/$T2eC16hHJHIE9nysfptKBRfqGVrBkw~~60_12.JPG

1 Linux server with a 5760 and soon a 9750. 2 game systems each with an nvidia card for gaming and secondary 9750s that will run 24/7 for mining. 3 9750s 1 5760 for about 2400Mhs/sec.

3 9750, 1 5760, 2 nvidia cards. Spread across 1 server and 2 game systems. Total of about 2.4 Ghash.

Are you.... seriously?  :'(

Got 2 rigs ...   

1 machine -  2.4 ghz Intel E6600 dual core proc.. 1 MSI 7970 card.  Slight overclock pulling between 630-700 Mhash (depending on OC and heat)..

2nd machine -  3.0Ghz QX9650 intel proc with 2 GTX 580s.  Each get about 160-174mhash depending on OC

Also got 2 rigs:
1 machine - Tegra 3, 1gb one x :D
2nd machine- i5-750, 5870hd ~400mhash when overclocked

Running a 7970. 650Mh/s solid.

My desktop can't cope :(

5 min of CPU usage over 10% and it crashes. I need a CPU fan.

I have two systems;
a quad core with 7790 (I know...) and an AMD with a 5450
I get 250Mh/s and 13Mh/s

2x 7950 @ 999MHZ @ 1100Mhash/s

running a lowly 6750 until my 7950 gets here tomorrow... then probably another 7950 after that.

I'm just running on a laptop doing just 40-41 Mhashes at the moment, but looking to spend some reasonable money on a multiple 7970 rig... if anyone has any spare, I'd be happy to do a deal  ;) !

Running 1 x 5770, generating around 0.5-0.6 ltc per day.

2x 7970, Win 7 pro 64bit, mining litecoins for bitcoins.

Does it pay to mine LTC for BTC? Isn't there a fee to exchange one to the other, and doesn't that negate any gains you make?

This looks like a good place for a first post!
1x7950 @ 530kh/s and a second on the way. Originally my gaming machine with a 5570 (~60kh/s) lol

Maybe if I have time I could post a set up later, I have 3 3x HD 7970 and 2x 7950 at it. Currently doing CHN and FTC.

Just started this week, for fun.

Running a 7850, 2xGTX560 OC (bought over a year ago for my gaming rig), and messing around with a 7950.

Debating on building a full blown rig with 3x 7950's....Of course, I probably "need" another gaming rig anyway.

.....riiiight...

Still messing around with the thought of just ordering 2 Butterfly lab jalepenos, which would be cheaper than 2 more 7950's anyway. But, it would take time for them to get to me.

I had two 5870's overclocked to 900mhz (would frequently stop mining to play League of Legends) and a 6870 mildly overclocked. Was getting 1.1Ghash/second but I stopped after the difficulty rose past it being worth the electricity cost. Damn ASIC's...

http://dustcoin.com

I'm poor and only have a 7850 and a 5750 with a hash rate of around 470 :(, Im waiting on products from BFL though.

A 7970 and a 7950 to mine LTC at around 1.2 MH/s

I sometimes try other cryptocurrencies, but it's mainly LTC

A dedicated PC with a 5870 and a 5850, running at a total of ~600MH/s.  My home machine with a 5870, and the kids machine with 5850, which is another 600MH/s when I have them running.

I've got a 5GH/s BFL on order, umm-ing and err-ing about ordering a 25GH/s one.

I have a 5970 and 2x7950's mining, originally BTC, then LTC, now FTC. Wherever the most money is basically...

I'd love a BFL box... even just the 5GHs one. I did read up some more about flags on the GUIminer and now I'm up to 56MHs  :)

I have one dedicated machine with 2 7950s.  Lately I have been mining LTC and FTC.

Is there much to be made in other coin types, I find it hard enough to get bitcoin into GBP, surely other currencies require quite a bit of work to move them around to whatever you need?

Right now I have 2 rigs:

Rig 1:
3x Sapphire 7950s

Rig 2:
4x Gigabyte 7950s

I want to add another Sapphire 7950 to rig 1. Right now though, I get 4.6 MH/s. :)

Just got together a 3x Sapphire 7950 rig, mined only a small time, PSU is having issues. Just
ordered another one, will be back at it on Tuesday, I hope. :P

Out of the box it was getting 1800kH/s easily. Some tweaking will take it closer to 2000kH/s assuming
the new PSU works correctly this time. 

Is this profitable?

got 2x 7870 tahiti le at 430mh/s each.

3x 5970 at 2100 mhs
1 7970 at 650mhs
1 5870 400mhs

Just starting out got 2 x 7950 mining LTC at 1.2MH/s

4x7950 @2500kh/s - all dedicated
2x7970 @1400kh/s - only one is dedicated

I tried mining with my daughter's computer for a while as mine is elsewhere, unfortunately it doesn't do very well and gets so hot that it blue screens.  Nvidia cards don't seem to do so well at this and I doubt that it's covered the price of the electricity, and this one's card blows the heat out inside the case so it just makes everything overheat.  Maybe I need a truckload of ASIC machines instead....

Core2Quad Extreme QX9650
GTX580
4GB DDR3-1600
Fire probably coming out of it if I keep trying, not worth it.

Rig 1: ~1.4 ghash/s
1 - 5970
1 - 5850
1 - 5830

Rig 2: ~1.3 ghash/s
2 - Gigabyte 7970

All the cards except the 5970 are powered off of some server power supply I paid $15 for.

Even if the ROI turns out to be 0, I'm still looking forward to ASICminer's USB Block Eruptor... :)

Just an old laptop

Just with a 5750, get about 150 kh/s mining scrypt coins.

1x6670 & 1x7770

1x6850 & 1x6770

780MH

I have a similar setup, couldn't get mining to work in Ubuntu, so using Windows 7. Only got interested in crypto currencies a week or so ago, but already thinking of upgrading my card to a 78xx or something.

At first I had an nVidia GT 450 which was getting about 42Mh/s.  Then I bought a 7870 and now get 425 Mhs.  Power usage is about 260 Watts on my system.  I used to keep two computers running all the time, now I turned off one which was using 180 Watts and now I use less electricity on a net basis.  I started with LTC, but now for me BTC is more profitable.  Every now and then MNC, FTC and TRC are better the mine, for short periods of time.  Seems like that is only a few hours though.

My Rig includes:
2 7950's mining away as we speak.

So far, I've been only mining Litecoins.

We'll see how it goes.

4 x 7970

One is not cooperating at 670-690khash, Other three are underclocked 10mhz on engine for stability.

https://i.imgur.com/aMsUSxy.png

Old Q6600 Opteron with 2 x 7770 HD's, tinkered to see what it is all about. Happy with the power draw efficiency however they dont really mine fast compared to the beasts people are outlaying in.

Currently I'm using mine and my daughter's (when she's not on it) computers but am intending to build a dedicated mining rig because although it might not quite cover the electricity bill it will heat the house too, saving on the gas bill.  Apart from that hopefully my BFL 7GH/s Miner will turn up one day......


My machine:
QX9650 Core2Quad Extreme, 4GB DDR3-1600, Nvidia GTX580 running CudaMiner which makes it twice as fast as with CGMiner because Nvidia cards aren't great with OpenCL integer maths


My daughter's machine, on which she's clocked up over 1000 hours playing The Sims 3, another 500 on Garry's Mod and an unknown but large amount of time on Minecraft:
Phenom II X3 710, 4GB DDR2-800, ATI Radeon HD5870


Just between these two computers they're putting out enough heat that my gas central heating system hasn't come on once yet and it's almost October.  Obviously this feature isn't very useful in summer but in winter heat is not an expensive waste product.  I wish they were quieter though!

I just mine for fun and to see how things perform.

So I mine LTC on my Linux desktop which is a Haswell i5 with a Geforce GTX770 at ~ 200kHash/s. Not really impressive but pleasant for me as a hobby.

I've looked into the power costs and I'm paying roughly $0.28 / kW/h.

I'm looking at some options for a dedicated mining rig but am not yet ready to choose.

I don't really want to invest hundreds into new hardware. So some cheaper 5/6 series Radeon cards combined with a AMD Sempron 145 based system and a motherboard with a minimum of three PCI-e slots would seem to be the best option for me.

But again. I'm still not certain. I just want to mine with a bit more power but don't want to loose to much on power.  ;D

TFK

Are you using CudaMiner?  Switching from CGMiner to CudaMiner literally doubled the hashing speed of my GTX580 (OC'd graphics clock to 900MHz) to 260kH/s (scrypt)

Thanks for your interest! Yep, I'm using cudaminer with autotune. I know, I should have bought a Radeon. Though, the GTX770 is a very nice card in itself. However, I did not OC it. Dit that do much for your 580?

edit: wow it reports 256 now!  8)

TFK

Overclocking my card made about 10% difference, but it gets a lot hotter.  I bought it for gaming, I didn't know anything about mining back then.

Yeah. Same here. That's why I'm using a Geforce right now.  ;D

TFK

I have a Block Erupter mining altcoins . I also mine Litecoins on my GTX 780, when i don't use it.

I have crossfire 5870's that I am currently mining litecoins on the WeMineLTC pool. I am not using my CPU for mining, but its an i7 920 at 3.5 GHz

Mining bitcoins with 3 USB Block erupters since a month

I mine with this for a week and when somebody buys it I will get some sleep ... ;D
http://chicago.craigslist.org/sox/ele/4216414319.html