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41001  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 23, 2014, 02:33:03 AM
I just hooked up the 2nd one using phillipma1957's suggestion so far so good but it's only been about 20 mins. The cables don't feel warm as of yet.

 It should be good.

 if you have a k-watt meter check watts should be 1020-1100 watts.

 if you can post a photo to show  the hook up please do.
41002  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 23, 2014, 02:30:03 AM
I'm planning on using 2 x EVGA G2 750Watt PSU per Prisma miner; the 750W has 4 PCIE connectors - so 2 per hashboard isn't a problem.

If anyone is looking for a good deal Amazon has the best price currently; plus their MiR is good for 2 PSUs.



if that is a split rail psu it won't work.  I have a 750 watter and it use up to 3 cables  on the fourth it overloads.  mine is a split rail model .  check and see if it is.

The EVGA G2 750W has a single 12V rail.

yeah I have a bronze yours is the gold so it makes sense.
41003  Bitcoin / Group buys / Re: [OPEN] Prisma 1.4Th/s group buy @ 1.42 btc with coupon on: October 23, 2014, 01:42:03 AM
Please use caution when unpacking your prismas as the unit may shift inside the foam capsule...
I do not recommend pulling it out from one of the sides.  Remove the side foam caps and then separate one of the lengthwise foam sides CAREFULLY and lift the prisma out of it's foam shell.  You will see upon closer visual inspection that the lengthwise foam panels are glued at the corners.  That would be a good place to separate them to get to the prisma.

I think there's a chance to snag a component if you just pull the tube out from the side of the foam casing.

Surely they are in antistatic bags inside the foam casing Huh

Nope, no antistatic bag Smiley

Unpacking wasn't a problem. Instead of trying to pull the device out, I was able to slide the outer foam "case" off, it did not touch the caps or anything, the miner has some foam spacers around it.

I got it running with cgminer on Linux within about 10 minutes after connecting the cables, most of that time was to find the github link Smiley

https://bitcointalk.org/index.php?topic=791827.msg9138614#msg9138614

Some minor quality issues (fan screws loose), other than that I'm very impressed. 1400+ GH/S as advertised. It's pulling ~5 amps at 230V on EVGA 1300 G2 (80+ Gold).


nice do you use freq 240?
41004  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 23, 2014, 01:34:34 AM
Would two CX750's work for one Prisma?  

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139040

Also, can I run them both off of 110V or would I need a 220V outlet?

Thanks.

they are single rail so that helps. i need to get a good look at the pcie's cables.

looks like 2 pcie cables that would be a no go.

but the modular one looks good

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139051&cm_re=corsair_cxm-_-17-139-051-_-Product
41005  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 23, 2014, 12:56:42 AM
I'm planning on using 2 x EVGA G2 750Watt PSU per Prisma miner; the 750W has 4 PCIE connectors - so 2 per hashboard isn't a problem.

If anyone is looking for a good deal Amazon has the best price currently; plus their MiR is good for 2 PSUs.



if that is a split rail psu it won't work.  I have a 750 watter and it use up to 3 cables  on the fourth it overloads.  mine is a split rail model .  check and see if it is.
41006  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 23, 2014, 12:53:55 AM
How did you get 8 Cables on an EVGA 1300? I guess you had some around?


Do those EVGA PSU come with 8 pcie connectors? I would recommend using all 8 connectors to lower the load on each cable. If you are only using 4 of the connectors, make sure the cables and connection points aren't getting hot. You are drawing about 250 watts through each cable with 4, so make sure they are high quality 16 guage and bump up to 8 if possible, or risk melting the cables or connectors.

Okay did some rearranging. Thanks for the advice CrazyGuy I was starting to get concerned about the heat, but now with 8 cables all is well. This does put me in a bind though as far as my psu choice is concerned.

Sorry for not explaining. I didn't. I moved the 1300 up to power 3 S3's and am using my EVGA 1500 for the Prisma, it has 8 cables. I'm still in a bind here though because I have 2 1300's coming today and 2 more prismas to power.
SHIT...

EDIT; I do have a bunch of extra cables is there some configuration I'm missing to get 8 out of it? I didn't think the 2 next to the VGA connectors were in play.

yes you can.  you should have 6 pcie cables 2 have 2 plugs.  4 have 1 plug.

am I correct??

my evga  has 6 cables  4 with 1 plug 2 with 2 plugs.

look closely   this is the 2 two plug cables   make believe that fan is the plug end fan on the long tube.

this will be two cables with 4 plugs  one plug in eacb side.   THIS IS NOT ENOUGH

you then have the 4 single cables plug one to each side.  so six cables pull 1200 watts.  each side of the unit has 1  cable with the long plug and 1/2 of the two plug cables  I don't have enough hands to hold it in place. but those 6 cables can carry 1200 watts even 1215.  if you think you understand the way to wire it please do and shoot a photo to us. I can confirm.



I think this would result in the same 250 watt load on each split cable, even if the cable is going across 2 boards. 1 board with a single cable and half of a split cable would draw 125 watts at each connector. The split cable would provide 125 watts on each board it is connected to. This would result in 250 watts on one cable, regardless of how it is configured.

yeah you may be correct but I don't think so.   the 2 jacks on each board pull 250-260 watts. they should pull more power on the single cable due to less resistance .  the dual plug cables  will be more resistant to the draw then the single plug cables.   each board get to pull 250-260 watts across  3 hot wires on the single cable and share 3 hot wires on the dual cable .  so each board is getting 4.5 x 18 awg wire.

that should work.
 remember the two jacks on the board  share common hot lead and common ground.

the draw should self level.   (in theory) .

 I did a lot of this on the short tubes and I got 290 freq and 1000  watts doing it this way the cables did not overheat.
41007  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 22, 2014, 10:49:51 PM
How did you get 8 Cables on an EVGA 1300? I guess you had some around?


Do those EVGA PSU come with 8 pcie connectors? I would recommend using all 8 connectors to lower the load on each cable. If you are only using 4 of the connectors, make sure the cables and connection points aren't getting hot. You are drawing about 250 watts through each cable with 4, so make sure they are high quality 16 guage and bump up to 8 if possible, or risk melting the cables or connectors.

Okay did some rearranging. Thanks for the advice CrazyGuy I was starting to get concerned about the heat, but now with 8 cables all is well. This does put me in a bind though as far as my psu choice is concerned.

Sorry for not explaining. I didn't. I moved the 1300 up to power 3 S3's and am using my EVGA 1500 for the Prisma, it has 8 cables. I'm still in a bind here though because I have 2 1300's coming today and 2 more prismas to power.
SHIT...

EDIT; I do have a bunch of extra cables is there some configuration I'm missing to get 8 out of it? I didn't think the 2 next to the VGA connectors were in play.

yes you can.  you should have 6 pcie cables 2 have 2 plugs.  4 have 1 plug.

am I correct??

my evga  has 6 cables  4 with 1 plug 2 with 2 plugs.

look closely   this is the 2 two plug cables   make believe that fan is the plug end fan on the long tube.

this will be two cables with 4 plugs  one plug in eacb side.   THIS IS NOT ENOUGH

you then have the 4 single cables plug one to each side.  so six cables pull 1200 watts.  each side of the unit has 1  cable with the long plug and 1/2 of the two plug cables  I don't have enough hands to hold it in place. but those 6 cables can carry 1200 watts even 1215.  if you think you understand the way to wire it please do and shoot a photo to us. I can confirm.

41008  Bitcoin / Mining speculation / Re: Difficulty slowdown: Is this turning into a long-term trend? [Discussion Thread] on: October 21, 2014, 11:52:32 PM
If you are mining now and are still making more in btc than you are spending in electricity you are dancing in the streets. The lifetime of your miners just got increased, as did your profit. No one realistically bought miners expecting less than 5% increases when the did the calculations. The longer it stays subdued the more gravy gets poured on the current miners.

yep and all the big boys need to do is stand pat and do their best to limit  network growth under 3%.
 
Just do some 1% 2% 3% growth in jumps on bitcoinwisdom's calculator's and mining look good.  So basically the big boys so not need to expand much.

 Oh they can replace a 1 watt miner with a .8 watt miner then a .6 watt miner but they are building there own so they do not need to sell much just a little bit at a time.
41009  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 11:43:41 PM
The price isn't "horrible" just because you can name one supposedly superior Bitmain product which may be shipping soon.

Bitmain is shipping sooner, has better power efficiency, is lower cost, comes fully assembled. HF loses on all accounts. There's no intelligent reason to chose HF over Bitmain. That makes it a horrible choice.

this needs to be less then bitmain's s-3 price on ebay.

which is around 240 -265
 More then 6 or 7 sellers will ships an s-3 to you in about 2 days. And you get ebays return policy if they do not run. and you can pay with a cc.

this deal would be okay if it was 200 with a 100 piece minimum.   but 260 and 2000 pieces it is a no go.
41010  Bitcoin / Hardware / Re: [$0.35/GH] Bankrupted HashFast Hardware Sale on: October 21, 2014, 06:04:21 PM
so 260 usd  for a kit  so if I run it at 500gh and .8 watts it is the same as an s-3

I have to pay in btc and wait for this kit.

I go to ebay and for  245 I get this

http://www.ebay.com/itm/Bitmain-Antminer-S3-Bitcoin-Miner-/271642550778?pt=US_Virtual_Currency&hash=item3f3f2861fa


Or 259 I get this

http://www.ebay.com/itm/BITMAIN-AntMiner-S3-Bitcoin-Miner-ASIC-IN-HAND-ships-within-24-hrs-/291272899697?pt=US_Virtual_Currency&hash=item43d137bc71

So I just don't see why anyone would want this gear at this price.
41011  Bitcoin / Mining speculation / Re: Difficulty slowdown: Is this turning into a long-term trend? [Discussion Thread] on: October 21, 2014, 05:12:49 PM
16nm is coming, no more difficulty slowdown..

16nm does not do the trick  bitfury and the like have no reason to produce it. 

2 caveats if

16nm allows .1watts a gh
if btc price jumps.


right now we are in an equilibrium  of btc price and power cost.    A large builder with a big farm such as bitmaintech has no use for more hashing.

If they truly have a 20mw setup  and they get .6watts a gh .  their best interest is 0 btc change and 0 diff jumps do the math.

20mw can do close to 30ph  if they get .6watts   by now they paid the gear off if it was built back in aug.

so 20mw at 8 cents a kwatt is 1600 usd a day.  30 ph earns 460 coins a day.

460 coins is more then 160,000 usd    so 160000 usd income for  1600 power cost. 

even if they make a 16nm and they drop power 3 fold   to 6 fold.  they only need to pull the power hungry gear offline.  they don't need to grow much at all.  due to the 380 usd price and 2% diff numbers.

This is a new btc world and smart large companies don't need to expand much at all if they have a proper data center setup.
41012  Bitcoin / Group buys / Re: [OPEN] Prisma 1.4Th/s group buy @ 1.42 btc with coupon on: October 21, 2014, 02:07:42 PM
can the shipping label be sent as a pdf via email and printed out on your end?
 

he does that send him the pdf in an email.
41013  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 21, 2014, 02:06:08 PM
Do you think an EVGA 1300G2 will run one of these?

Also how loud is it? Say compared to those Dell 750's (God Damn hair dryers) you are using to power them? My girlfriend may be upset when she hears them.
 
Well based on his numbers for the 2x 750 watt psu's absolutely.   He said 1188 used by the 2 server psu's

the evga will use less.  maybe 1150 or 1125.

he also is doing freq 240 if I read it correctly .  so if you set freq 230 you will drop gh and watts about 5%.

I had 2 short tubes and while I could get them to run at 290 vs stock of 270.  I needed to open my garage window and get the garage to be colder to do a good over clock.

I had dell server psu's and evga 1300's I refer the evga.

@ GrapeApe this is a loud unit.  well at least the short tubes ran loud. 
41014  Bitcoin / Mining speculation / Re: My new diff thread covers Oct 10 to Oct 22? 1.85% to 5.07% ? on: October 21, 2014, 01:55:00 PM

Also they have the S3 Plus to get a little more hash then first batches.   It is hard to beat the price on them if you already have PSU's.  If not make sure to add price of PSU in roi math.

I just got a S3+ off eBay for £200.  It's basically unused.  I'm running it to replace a clutter of older Avalon-based ASIC boards that drank 1kW for about 180GH. 

The S3+ is doing a shade under 500GH with 360W at the wall.  I'm very happy to let the S3+ sit and churn away until it pops, especially when difficulty is sitting still.  I'm in Bitcoin for the long game - I like many have wasted hundreds of BTC buying pointless ASICs, and the only ones that turned a high profit were the Mk1 ASICMiner Blades.  Now I'm just happy to sit and churn away and hope BTC is worth a lot more in 5-10 years time.


good luck.  and here is hoping to lots of flat diff jumps.
41015  Bitcoin / Pools / Re: [∞ YH] solo.ckpool.org 0.5% fee anonymous solo bitcoin and free testnet mining! on: October 21, 2014, 03:58:31 AM
Yes you are correct.  I was just thinking about how things have changed so quickly. ie. a 5gh/s tolerance was a big deal.

So, it was a "5 gh/s" shy of 2,000 GH/s or was it 200 GH/s shy ["1.8 TH/s average," like in your first statement.] shy of the 2 TH/s guarantee?

The reason I'm curious is because I'm about to purchase my first S4 in a couple more days.  I've almost mined the BTC needed to purchase it from Bitmaintech.com.

I'm just saying, I would be disappointed if it's not hashing the 2000 GH/s guaranteed.  I would need to send my S4 back if it was 200 GH/s shy of the 2000 GH/s guaranteed.  If it was just 5 GH/s shy of the 2000 GH/s, I could probably live with that; but not 200 GH/s shy of the guarantee.

no this was a pool issue.  my underclocked s-3 runs at 400-410gh.  the last two hours it has dropped out and back and is a mess.  but most of the time I get my 400-410gh here .  my s-3 is clocked to freq 200  so 400-410 is normal.
41016  Bitcoin / Group buys / Re: [OPEN] ASICMiner Prisma 1.4th/s - 1.47 BTC - Batch 6 on: October 21, 2014, 02:15:51 AM
look nice any numbers for us?

1000 watts and an evga 1300 give 1.38th at freq 270?Huh

just wishful thinking but I want to wait until someone runs one before I buy one.
41017  Alternate cryptocurrencies / Mining (Altcoins) / Re: my third zen-gaw thread on cloud ownership on: October 21, 2014, 02:10:49 AM
Funds are frozen try every  2 or 3 times 20 minutes or so.  I got mine out after 2 or 3  tries.


I tried like 30 times already, still no luck

EDIT:

Yesss, 33rd time's a charm Cheesy

I can proudly say I made 160% off my investment in 2 months and 7 days Smiley

And people say bitcoin isn't profitable, pff

https://blockchain.info/address/1FPwJYGZoc8UoekwU5YJ2fJjssFvMsU9jg

Sweet  nice profit.  I was ahead 1.684 btc and 1 fury converted to a hashlet.  I paid off the 1800 in cc charges made.

I sold off 1btc got 391 usd.   so 1800 became 2191 usd  with .684 btc holding along with the 1.2mg fury convert to hashlet.  I am not selling that since it is free until the 7th of nov.

So if  a 100% crash and burn of the entire system of zen /gaw and even the entire btc network happens i still made 391 usd.
41018  Bitcoin / Mining speculation / Re: My new diff thread covers Oct 10 to Oct 22? 1.85% to 5.07% ? on: October 21, 2014, 01:47:06 AM
Latest numbers look good for under 2%



https://bitcoinwisdom.com/bitcoin/difficulty


Bitcoin Difficulty:   35,002,482,026
Estimated Next Difficulty:   35,345,438,113 (+0.98%)
Adjust time:   After 357 Blocks, About 2.5 days
Hashrate(?):   254,316,772 GH/s
Block Generation Time(?):   
1 block: 10.0 minutes
3 blocks: 29.9 minutes
6 blocks: 59.8 minutes
Updated:   21:35 (7.2 minutes ago)

https://bitcoincharts.com/


Blocks   326235
Total BTC   13.406M
 
Difficulty   35002482026
Estimated   35338083863 in 357 blks
 
Network total   240333.034 Thash/s
Blocks/hour   5.76 / 626 s


  (+0.9599%) diff  jump


pretty flat for this jump.  will stay flat as long as btc stays low.  reasons are simple most hashing is done by the builders and margins are too tight for them to build out.

yeah there might be profit as low as 300.  but if you are running a 30ph setup and it has paid itself off.  

 the 30ph gets 431 coins a day.  if your power is 5 cents and you use .6 watts a gh   you spend 18mw a day that is  900 a day in power .  431 coins are 163000 a day

so after power your profit is 162000.  take salaries  a few other expenses and that plant earns 150k a day.   you don't need to expand.  if you keep coins flat and diff flat you just make big money day after day.

the interesting thing here is home miners can survive in this model.

   they need .8 watts  a gh and 12 cent power with 3% growth  and 380 usd coins ..  those numbers you do roi.

and if you could pull off 2% diff jumps you make pretty good money.
41019  Bitcoin / Mining speculation / Re: Antminer S5 Speculation on: October 21, 2014, 12:42:48 AM
At the mods I thought my joke was funny, but I understand the deletion.

At the op there is no way an s-5 will be built for many months to come.  Now if some one puts out a .2 watt miner

 the s-5 may show up as a competitor.

Builders don't need to build miners faster if they have a good miner on the market.  Once some real .2 watt gear is built something like a .25 watt s-5 will appear.
41020  Bitcoin / Hardware / Re: [Guide] Dogie's Comprehensive Manufacturer Trustworthiness Guide [12th Sept] on: October 20, 2014, 10:39:22 PM
  • ASICMiner Preorders down from 'Yes' to 'Batch' (20 to 16) - Not considered full preorders as the Prisma was fully designed and just waiting to be produced in sufficient quantities.

Wait a minute. SP-Tech always had batches and they were "Mixed" and now they are "Yes" on the pre-order category. Care to explain? If you are unaware of the batches they are "first half of the month" and "second half of the month". I understand that there was a pre-order for SP30, but the SP30 was launched in August. Since then only batches were available to order.

 your sp10's were not preorders.  the rest are.

To be fair just about every one is selling preorders.  the u3's are preorders .

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