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Topic: Capital cost. - page 2. (Read 4331 times)

hero member
Activity: 575
Merit: 500
July 05, 2011, 05:00:53 PM
#25
$130 for single 5770. I should get some more since i don't seek mh/j efficiency.

5770 is a horrible $/MH card since each pci-e slot comes with a cost as well, unless you are just filling up slots in your current systems then I would agree it's a decent deal. Also 5770 is actually a pretty decent MH/W card once you downclock the memory.
hero member
Activity: 711
Merit: 500
July 05, 2011, 02:53:28 PM
#24
3200$ vs 4020 mhash, 12 5850s, 3 systems with risers
sr. member
Activity: 294
Merit: 250
July 05, 2011, 02:27:51 PM
#23
Woot messing about in trixx I just made it to about $0.92  Grin
Well happy with this its my first one \o/

Once those PCI risers make it over from Hong Kong I should beable to address some heat issuse's and pust it down even more.
newbie
Activity: 55
Merit: 0
July 05, 2011, 05:03:04 AM
#22
$130 for single 5770. I should get some more since i don't seek mh/j efficiency.
hero member
Activity: 575
Merit: 500
July 05, 2011, 04:22:34 AM
#21
I don't get how some of you can build such inefficient rigs, especially those of you in the US with your hardware prices :/ My absolutely worst rig is in the 0.9$/MH and I have to deal with the hardware prices in sweden/europe (25% VAT). When the 5850 Xtreme was launched here for example they were in the 175-200$ area and I've yet to see the 5830 Xtreme below 140$. People just seem to be spending way to much on the rest of the hardware rather than on cards where it matters.
sr. member
Activity: 294
Merit: 250
July 05, 2011, 03:58:52 AM
#20
Not to make you feel bad, but you'll almost definitely not ever see that back. $1.14 / Mhash is way too much.

Almost definitely? Never? Really?

So what's your best estimate on the probability that he will make back all that he invested (including accumulating electricity costs and possible hardware failures), in a scenario where he sells all of his bitcoins as they come along? "Almost definitely not ever" is so vague, but to me it sounds like 1% at most, possibly 0.1% or even lower. Is that about right?



Brake even isn't when you get your money back for your investment in my mind anyway.
Its when you have sold bitcoins and covered utillitys to the point that you can realisticly ebay off all your hardware and come out even.
The rigs are an asset dont forget.
newbie
Activity: 59
Merit: 0
July 05, 2011, 03:40:02 AM
#19
Not to make you feel bad, but you'll almost definitely not ever see that back. $1.14 / Mhash is way too much.

Almost definitely? Never? Really?

So what's your best estimate on the probability that he will make back all that he invested (including accumulating electricity costs and possible hardware failures), in a scenario where he sells all of his bitcoins as they come along? "Almost definitely not ever" is so vague, but to me it sounds like 1% at most, possibly 0.1% or even lower. Is that about right?
sr. member
Activity: 294
Merit: 250
July 05, 2011, 03:37:26 AM
#18
So far about £600 / $960 on 05/07/11

1050 MHash/s


Have a clone of this on order so I can do some side by side research with a friend.
All quality parts with good warrantys to so dont expect hardware failures to be an issue.

May well Dive in after that and get 8 more taking it to 10GHash/s and should cost me under £6000.

You lot in the US got it easy  Grin stuff over here costs an arm and a leg.  Angry

Plan is one hard drive to boot and rule them all. Lol see what i did  Wink ok fail sorry.

Whole things caseless so will be buying an wheeled airport server case and a rather large fan. (not factored in these cost's yet)

Then I can stay at hotels for free  Grin well as long as I don’t trip the MCB that supplies my floor.
Do uk hotels have fair energy use policy’s? I have some more research to do it seems.

sr. member
Activity: 742
Merit: 250
July 05, 2011, 03:15:04 AM
#17
205 eur for 410Mhash/s. card has mined 10btc for me so far.

I'm amazed by how inefficient a lot of these builds are that seem to be the norm. I'm curious, how many of you guys at the 1Mhash/$ or below level are near having your setups repaying themselves?

quite far away from that, even though it's 1.4Mhash/$. problem is, each mined bitcoin costs about 3.20 eur for me (0.22 eur / kWh), so it will take quite a while to have the card pay for itself, if it's even gonna happen at all.
hero member
Activity: 602
Merit: 500
July 05, 2011, 02:48:07 AM
#16
I'm amazed by how inefficient a lot of these builds are that seem to be the norm. I'm curious, how many of you guys at the 1Mhash/$ or below level are near having your setups repaying themselves?
sr. member
Activity: 464
Merit: 250
July 05, 2011, 02:32:04 AM
#15
I decided to only buy with what I earned.

£25
800mhash

Already had a 5770 and a xfire mobo for my gaming needs so don't class that as outlay as it was before bitcoin
full member
Activity: 336
Merit: 100
July 05, 2011, 02:15:54 AM
#14
$2100
2500Mhash/s
hero member
Activity: 812
Merit: 502
July 04, 2011, 11:59:48 PM
#13
Capital                  $1360
MHash/s                 1748

$0.778 for each Mhash/s
1.285 Mhash/s for each dollar

newbie
Activity: 56
Merit: 0
July 04, 2011, 11:16:26 PM
#12
I made a rig for ~$600 (with a good case that was probably unnecessary and some already owned hardware) and it puts out ~580 MH/s. So that was 1.03$/MH, or .966MH/$

I also have a 5850 pushing 340MH/s on my gaming computer, but the 5850 was bought before I knew of BTC, so I consider that $0 investment. So that's givng me 0$/MH or InfinityMH/$

Edit: 9.66 MH/s is quite different from .966MH/$
sr. member
Activity: 451
Merit: 250
July 04, 2011, 11:11:16 PM
#11
I paid about $1500 for three case-less mining rigs + UPS, 6 x 5770, 1200 MH/sec.  Draws 860 watts from the socket, in a non-airconditioned environment.

So you paid a bit more than me.  $1.25  for each MHash/s capability.
sr. member
Activity: 451
Merit: 250
July 04, 2011, 11:07:30 PM
#10

Quote
That's not bad at all.  You counting the PSU?  My PSU cost 150-250 each, which is comparable to the mobo, cpu, ram, hd and case put together.  so you are looking at about $400-500 for the non-GPU parts, times 7 = $2800-3500.  That leaves around $4500-$5200 for the gpus.  21 gpus at about $200-250 each, what kind did you get?  5850, 6950?  Either way your MH estimate is pretty accurate if you OC and run aggressive command line args.  
I built three rigs from scratch.  I bought three used gaming computers.  One computer didn't work so I bought a replacement motherboard for it, then I fixed the motherboard added the power supply, CPU, memory and that gave me my seventh rig.  So I have Three computer in cases and 4 sitting open on the table.

The Power Supplies were the most expensive part.  One was $250 and the cheapest was $190.

Quote
Did you factor in the cost of shelving/computer storage, surge protectors/electrical wiring, fans, and A/C units?  You are going to need at least 20,000 BTU of cooling for that if you live anywhere south of Maine.  That all should run you another $1000 plus, easy.  Bring your total capital cost to more than $1.14 per MHash.  Then you got to factor in rent, unless you already have a sunk cost mortgage on a house with a usable workshop, garage, or extra bedroom.  Recalculate with all that and you might find closer to $1.50 per MH.

Not counting any of that.  Just wondering about the capital.  I own my house. Most of my rigs are in my basement where it used to be nice and cool.  For about $30 I added 40 amps of outlets to the basement.  I haven't needed any cooling, just fans on all the open rigs.  I'm burning an extra 2.9 KWatts for about $340 / month.

full member
Activity: 182
Merit: 100
July 04, 2011, 09:53:47 PM
#9
I've just finished my first month of mining and have finally stopped buying computer stuff.

Capital                  $8,000    -    21 graphics cards running on 7 motherboards.
MHash/s                 7,000

So I paid $1.14 for each MHash/s capability.  How does that compare to others?

I may be mistaken with what your trying to show but dollar per megahash (dollar/megahash) is a bit of an awkward ratio because the lower your number the better you did. If you go with megahash per dollar (megahash/dollar) you got .875 megahash for ever dollar you put in. This ratio makes a higher number a better number which is more comprehend able.

Capital                                   987
MHash/s                               1280
Megahash per dollar               1.30
hero member
Activity: 686
Merit: 501
Stephen Reed
July 04, 2011, 09:50:09 PM
#8
I paid about $1500 for three case-less mining rigs + UPS, 6 x 5770, 1200 MH/sec.  Draws 860 watts from the socket, in a non-airconditioned environment.
sr. member
Activity: 332
Merit: 250
July 04, 2011, 09:25:16 PM
#7
I've just finished my first month of mining and have finally stopped buying computer stuff.

Capital                  $8,000    -    21 graphics cards running on 7 motherboards.
MHash/s                 7,000

So I paid $1.14 for each MHash/s capability.  How does that compare to others?


That's not bad at all.  You counting the PSU?  My PSU cost 150-250 each, which is comparable to the mobo, cpu, ram, hd and case put together.  so you are looking at about $400-500 for the non-GPU parts, times 7 = $2800-3500.  That leaves around $4500-$5200 for the gpus.  21 gpus at about $200-250 each, what kind did you get?  5850, 6950?  Either way your MH estimate is pretty accurate if you OC and run aggressive command line args.  

The math works out for me, he spent what it costs and didn't overspend.  Obviously would have been better to buy 2 months ago when GPU costs would have been 1/2 or 2/3 of what they are now, but I don't think you can get much higher than $1.14 per M/Hash at today's prices.

Did you factor in the cost of shelving/computer storage, surge protectors/electrical wiring, fans, and A/C units?  You are going to need at least 20,000 BTU of cooling for that if you live anywhere south of Maine.  That all should run you another $1000 plus, easy.  Bring your total capital cost to more than $1.14 per MHash.  Then you got to factor in rent, unless you already have a sunk cost mortgage on a house with a usable workshop, garage, or extra bedroom.  Recalculate with all that and you might find closer to $1.50 per MH.
full member
Activity: 224
Merit: 100
July 04, 2011, 09:08:08 PM
#6
For the systems I currently have online I paid around $2200 for 3200ish Mhash.  That's 11 5830s and various other components.
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