Is it economically viable me building a scrypt rig around £1200.

Mk2vr6

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Quote from: BotwinBG on February 02, 2014, 09:33:57 PM

Check ebay for DPS-2000, DPS-2500, DPS-800 , DPS-1520 and Dell Z750P (poweredge 29something PSU). DPS-2500 is a real monster - http://www.rcgroups.com/forums/attachment.php?attachmentid=4854652 but unfortunately comes without fans. Got it powering a few Antminer S1 units right now with jerryrigged fans on the side.
As for connecting them - got a bunch of quality PCIE cables and butchered them on one end

A multimeter is nice to have but I trusted the internet regarding the pinout and so far it has worked out fine.
Check http://www.gekkoscience.com/products/server_supply_breakout_board.html and https://bitcointalksearch.org/topic/server-power-supply-interface-board-for-standalone-miners-and-gpu-rigs-379677 for a nicer way of connecting it all. Oh and make sure you do the homework regarding all those model numbers, you want 12VDC, think some of those server PSU can do 51VDC as well and you probably do not want that.

EDIT - about datacoin - I don't know if they are profitable now. I managed to find 2 blocks soloing and about 15 datacoins mining with http://dtc.xpool.xram.co . I find the idea kinda neat , seems to serve more purpose than most of the coins here, somewhat like namecoin I guess. So I think of it as a long term bet and I only have an i5 and some phenom 9xx mining it, not much of a running cost there, electricity-wise.

Pm'd.

Mk2vr6

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Quote from: Mk2vr6 on February 02, 2014, 10:07:46 PM

Nice one! I've found an IBM 1520 for £34 delivered!

Only thing is it comes with no cables...

Any ideas on pinouts on the above PSU?

Mk2vr6

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Nice one! I've found an IBM 1520 for £34 delivered!

Only thing is it comes with no cables...

BotwinBG

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Quote from: Mk2vr6 on February 02, 2014, 09:50:15 PM

And I've got an I5, and will have an athlon so might have a go at mining it myself. What's the block reward?

Around 9 or 10. Can't check the miners atm, but it was some weirdly uneven number around 10 for both blocks as far as I remember.

Mk2vr6

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And I've got an I5, and will have an athlon so might have a go at mining it myself. What's the block reward?

Mk2vr6

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Quote from: BotwinBG on February 02, 2014, 09:33:57 PM

Check ebay for DPS-2000, DPS-2500, DPS-800 , DPS-1520 and Dell Z750P (poweredge 29something PSU). DPS-2500 is a real monster - http://www.rcgroups.com/forums/attachment.php?attachmentid=4854652 but unfortunately comes without fans. Got it powering a few Antminer S1 units right now with jerryrigged fans on the side.
As for connecting them - got a bunch of quality PCIE cables and butchered them on one end

A multimeter is nice to have but I trusted the internet regarding the pinout and so far it has worked out fine.
Check http://www.gekkoscience.com/products/server_supply_breakout_board.html and https://bitcointalksearch.org/topic/server-power-supply-interface-board-for-standalone-miners-and-gpu-rigs-379677 for a nicer way of connecting it all. Oh and make sure you do the homework regarding all those model numbers, you want 12VDC, think some of those server PSU can do 51VDC as well and you probably do not want that.

EDIT - about datacoin - I don't know if they are profitable now. I managed to find 2 blocks soloing and about 15 datacoins mining with http://dtc.xpool.xram.co . I find the idea kinda neat , seems to serve more purpose than most of the coins here, somewhat like namecoin I guess. So I think of it as a long term bet and I only have an i5 and some phenom 9xx mining it, not much of a running cost there, electricity-wise.

Thanks for the info.

Found a Dps-2500ab but its 51vdc! Only £44 too - I'll keep looking.

BotwinBG

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Check ebay for DPS-2000, DPS-2500, DPS-800 , DPS-1520 and Dell Z750P (poweredge 29something PSU). DPS-2500 is a real monster - http://www.rcgroups.com/forums/attachment.php?attachmentid=4854652 but unfortunately comes without fans. Got it powering a few Antminer S1 units right now with jerryrigged fans on the side.
As for connecting them - got a bunch of quality PCIE cables and butchered them on one end

A multimeter is nice to have but I trusted the internet regarding the pinout and so far it has worked out fine.
Check http://www.gekkoscience.com/products/server_supply_breakout_board.html and https://bitcointalksearch.org/topic/server-power-supply-interface-board-for-standalone-miners-and-gpu-rigs-379677 for a nicer way of connecting it all. Oh and make sure you do the homework regarding all those model numbers, you want 12VDC, think some of those server PSU can do 51VDC as well and you probably do not want that.

EDIT - about datacoin - I don't know if they are profitable now. I managed to find 2 blocks soloing and about 15 datacoins mining with http://dtc.xpool.xram.co . I find the idea kinda neat , seems to serve more purpose than most of the coins here, somewhat like namecoin I guess. So I think of it as a long term bet and I only have an i5 and some phenom 9xx mining it, not much of a running cost there, electricity-wise.

Mk2vr6

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Also, how have you converted them to run PCI power cables?

Mk2vr6

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Quote from: BotwinBG on February 02, 2014, 08:26:37 PM

Regarding PSUs - I went the discontinued server PSU route - currently running 4 cards off a single DPS-1520AB at 1440W or something, cost me about 140USD for 5 of them, half of that was delivery from the US to Scandinavia. The rest of the system is running on a somewhat cheap Corsair 400w unit and that is mostly cause I also mine datacoin on the cpu.

5x sever PSU's? Fancy selling me one? Lol. Im in the UK Wink

I'll look into that, thank you. I've got a couple of old 400w PSU's knocking about, so could possibly use one for MOBO alone.

And offtopic/ Is datacoin profitable then?

BotwinBG

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Regarding PSUs - I went the discontinued server PSU route - currently running 4 cards off a single DPS-1520AB at 1440W or something, cost me about 140USD for 5 of them, half of that was delivery from the US to Scandinavia. The rest of the system is running on a somewhat cheap Corsair 400w unit and that is mostly cause I also mine datacoin on the cpu.

Mk2vr6

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So, so far I have:

Gigabyte 970A-DS3 - £40 delivered.
Athlon X2 250 - £25 delivered.
Sapphire 280x VaporX - £250 delivered (running in my desktop for timebeing)
I'll be pulling A 4gb stick of corsair vengeance out of my desktop, Dont need 8gb anyway.

I also think I should have my hands on two cards tomorrow - One 7950, One 7970 for the grand sum of £320!! We will see though.

Question for now is will a decent XFX 850w Psu with a single 12v rail (70A) be enough to power the three cards?

Grin

atp1916

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Quote from: FlyForFun on January 22, 2014, 07:30:59 PM

Quote from: Mk2vr6 on January 22, 2014, 08:26:43 AM

Like you said, scrypt ASIC is coming and it is really risky to get into mining now. You might want to consider purchase Litecoin or any scrypt coin directly?

Strongly disagree:
#1 Demand for those 1st-3rd gen scrypt asics will be astronomical. Outside of personal company use, group-buyins, and solo farms buying up thousands of units, the chances of your average miner (you, me etc) getting units is extremely small. One could very well hold out for the next 2 years before scrypt asic supply levels out the demand. Certainly not worth losing out on current profitability by "holding out".

#2 GPUs will (usually) be viable for next generational algorithms, while asics (probably) wont be. Never buy non-repurposable hardware for the sake of end-game returns. Look at the btc asics. Only the very best asics are still viable, everything else is virtually worthless. GPUs retain innate value and returns from their multipurposibility, while asics grow only to obsolescence and at a certain point, no return (or negative).

#3 Going fiat to crypto is what is risky. Cypto could crash tomorrow, and you lose your fiat.. period. Going the hardware route is your hedge against risk. Your hardware will not evaporate if crypto crashes. Now, if one can't mine due to environmental factors or electrical, then fiat is your only option.

Mk2vr6

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Thanks. Had my fingers burnt with cheaper PSU's in the past - Although being a decent make!

I'll sort the PSU, thats not a problem.

However, Sapphire 280x VaporX or Gigabyte 28XOC-3GD? Is it worth spending the extra £15-£20 on the Sappire card?

Thanks again.

Grin

Wipeout2097

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Quote from: Mk2vr6 on January 22, 2014, 07:28:52 PM

Thanks to everyone for the input Grin

Quote from: sitefive on January 22, 2014, 04:52:53 PM

lol you are being missleaded in this thread!
Buy 2X 750w comes cheaper then one single 1200w and you can add more then 4cards to that setup!
also you can run those 4cards on about 1200w , even 1000w if you undervolt them.

also Why the fuk would u spend money on setup just for a hobby? wtf? Of course do it for profit!
4X 280x Overclocked will get up to 3200khs with correct settings on air cooling.

Yeah stay away from those scrypt asics for now on, you will be able to mine only specific coins with them and you can get your money back selling those videocards,usually at least 70%!

80plus bronze ok or look to silver/gold for long term stability? Currently got one an XFX 750w in my desktop, after the first Antec Shat itself in a cloud of smoke! Faulty batch apparently.

Bronze, silver, gold, platinum has to do with power efficiency, not long term stability. For long term stability, you need to pick good brands and not push the PSU to the limits. Pull only up to 80% of the rated power out of the PSU at 24/7 operation, and even less in the Summer

Perhaps a XFX 850W or some Corsair 750W, or preferably Seasonic

Wipeout2097

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About single vs 2 PSUs...

The EVGA Supernova 1300W is a not-too-expensive PSU that you may find interesting.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817438011

That's $240, I don't know the prices in the UK

Mk2vr6

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Quote from: Mk2vr6 on January 22, 2014, 07:28:52 PM

Sapphire 280x VaporX or Gigabyte 28XOC-3GD?

What do we reckon?

Mk2vr6

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Quote from: FlyForFun on January 22, 2014, 07:30:59 PM

Quote from: Mk2vr6 on January 22, 2014, 08:26:43 AM

As above really - have between £12-1500 to spend.

Was thinking:

4x 280x Sapphire Vapor.
970 extreme 4,
8gb ram,
Cheap SSD,
And possibly 2x 750w bronze psu's.

The problem is the imminent arrival of scrypt ASIC's. I have registered my interest with Alpha-T but looks like I've missed the first batch.

Obviously computer hardware can be sold on after using it, and I need to factor in cost of electricity here as it isn't cheap in the UK!!

What do you reckon? Huh

Like you said, scrypt ASIC is coming and it is really risky to get into mining now. You might want to consider purchase Litecoin or any scrypt coin directly?

And see my money fluctuate daily? Or Invest £1200 in something that will bring me a return, keep me occupied and still sell for £7-800 in a year?

FlyForFun

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Quote from: Mk2vr6 on January 22, 2014, 08:26:43 AM

As above really - have between £12-1500 to spend.

Was thinking:

4x 280x Sapphire Vapor.
970 extreme 4,
8gb ram,
Cheap SSD,
And possibly 2x 750w bronze psu's.

The problem is the imminent arrival of scrypt ASIC's. I have registered my interest with Alpha-T but looks like I've missed the first batch.

Obviously computer hardware can be sold on after using it, and I need to factor in cost of electricity here as it isn't cheap in the UK!!

What do you reckon? Huh

Like you said, scrypt ASIC is coming and it is really risky to get into mining now. You might want to consider purchase Litecoin or any scrypt coin directly?

Mk2vr6

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Activity: 196

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Thanks to everyone for the input Grin

Quote from: sitefive on January 22, 2014, 04:52:53 PM

lol you are being missleaded in this thread!
Buy 2X 750w comes cheaper then one single 1200w and you can add more then 4cards to that setup!
also you can run those 4cards on about 1200w , even 1000w if you undervolt them.

also Why the fuk would u spend money on setup just for a hobby? wtf? Of course do it for profit!
4X 280x Overclocked will get up to 3200khs with correct settings on air cooling.

Yeah stay away from those scrypt asics for now on, you will be able to mine only specific coins with them and you can get your money back selling those videocards,usually at least 70%!

That sounds good to me!

80plus bronze ok or look to silver/gold for long term stability? Currently got one an XFX 750w in my desktop, after the first Antec Shat itself in a cloud of smoke! Faulty batch apparently.

Last question (I think) Sapphire 280x VaporX or Gigabyte 28XOC-3GD?

sitefive

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lol you are being missleaded in this thread!
Buy 2X 750w comes cheaper then one single 1200w and you can add more then 4cards to that setup!
also you can run those 4cards on about 1200w , even 1000w if you undervolt them.

also Why the fuk would u spend money on setup just for a hobby? wtf? Of course do it for profit!
4X 280x Overclocked will get up to 3200khs with correct settings on air cooling.

Yeah stay away from those scrypt asics for now on, you will be able to mine only specific coins with them and you can get your money back selling those videocards,usually at least 70%!

Topic: Is it economically viable me building a scrypt rig around £1200. (Read 1776 times)