Bitcoin Forum
September 23, 2018, 09:01:26 PM *
News: ♦♦ New info! Bitcoin Core users absolutely must upgrade to previously-announced 0.16.3 [Torrent]. All Bitcoin users should temporarily trust confirmations slightly less. More info.
 
  Home Help Search Donate Login Register  
  Show Posts
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 [48] 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 ... 118 »
941  Economy / Securities / Re: [GLBSE] Weighted average price for a 1 MH/s bond is below 30 bitcents on: June 07, 2012, 07:24:02 AM
Since we're posting tables of information: http://caspar.adterrasperaspera.com/dmc/trade/
942  Economy / Securities / Re: Angel investment passthrough ? on: June 07, 2012, 07:23:07 AM
Someone needs to start a BTC only VC firm so I can just throw money into that and not have to research each business proposal.

Huh. Thats not the worst idea I've heard today.

Although, as a counter, GLBSE has turned into crowdfunding central lately.
943  Economy / Securities / Re: [GLBSE] Diablo Mining Company (DMC) [4.0 ghash] on: June 07, 2012, 07:19:26 AM
You really have to shut this guy up..  http://www.youtube.com/watch?v=ol2STodQCQI&feature=plcp

He is making you look stupid, as well as himself (which seems par for him anyways).

He is calling YOU the largest farm currently in existence etc, etc.

If you are happy being associated with this scammer, great....

I think I need some sort of transnational popcorn manufacturing business.

Edit: I don't think he meant to say I'm the largest, just that I will be the largest. At 1+ thash, that really is true, unless its a stealth farm, I'm not aware of anyone larger.
944  Bitcoin / Hardware / Re: Algorithmically placed FPGA miner: 245MH/s/chip and still rising on: June 04, 2012, 01:58:30 PM
I hope a list of boards that have enough current are listed. Its hard to buy new boards if you don't know which ones are insufficient.
945  Economy / Securities / Re: [GLBSE] Diablo Mining Company (DMC) [4.0 ghash] on: June 04, 2012, 05:19:45 AM
I've added Red Star Mining (RSM) to the swap list.
946  Other / CPU/GPU Bitcoin mining hardware / Re: DiabloMiner GPU Miner (LP, BFI_INT, async nw, multipool, 79xx GCN) on: June 02, 2012, 05:58:09 PM
Apologies if this has been answered before, but I could not find an answer to my question on Google.

Is there a way for me to set a lower aggression for DiabloMiner ? I thought setting the -f flag to some high value might help, but not getting the desired result.


-f is fps. Set it to a multiple or divisor of 60. Higher is less aggressive.

That's what I thought Sad Very strange. On a multi-card setup, I've tried -f 1, 60, 600, 6000, 60000 and it's seemed to make no discernible difference in affecting hashrate Sad I'll try snagging the latest-and-greatest DiabloMiner later this evening if see what's what.

 Thanks !

It doesnt effect the hashrate much, it effects the aggression. Only in badly designed miners that it greatly effects the hashrate.

On my 7979 at stock speeds -f 1000 gets me about 512. At the default of -f 30 it gets me about 556. I assume the difference is much larger in Windows.

So if I set it to -f 60, I can game at 60fps whilst using whatever GPU horsepower is going spare?  Grin

Depends entirely on the game, but unlikely. Try -f 120 or -f 180 or -f 240.
947  Economy / Securities / Re: [GLBSE] Diablo Mining Company (DMC) [3.5 ghash] on: June 02, 2012, 05:57:23 PM
Hey guys, I was just looking at the other mining companies on GLBSE.

DMC, at 3.5gh, is bigger than 007 (0.80gh), ABM (0.83gh), JAH (2.5gh), FPGA.CONTRACT (2.8gh), and JLP-BMD (3.36gh), and we're closing in on YABMC (5gh) and TYGRR.BOND-A (5gh).

Fuck yeah.

Ive added the sizes of the companies to the trade script.

Using those numbers, we're bigger than 007, ABM, JAH, and FPGA.CONTRACT, but not JLP-BMD.
948  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 02, 2012, 04:16:59 PM

re SATA plugs: they're just reusing an industry standard connector. It has enough pins to run serial over, so its fine. External 4x SATA/SAS has often been ran over Infiniband connectors because its cheaper and higher quality than using eSATA, and I've seen other things reuse SATA plugs. Its not particularly a new idea.

You can't reuse ASICs because they're designed specifically to ONLY for this. Thats why its an ASIC.

BFL FPGAs COULD be repurposed, but BFL requires encrypted bitstreams.

As for SATA connector's that's quite interesting, but it leaves me another question: as far as I understand, there is no need of high speed communications to feed the FPGA/ASIC and it's always needed a PC to access the pools and feed the jobs, so, why don't they use the PCI bus inside the computer? Or even the PCIe?
Other designs I've seen in this forum, use Molex connectors, and I still don't get it, why not ISA/VESA/AGP/PCI/PCIe type connectors?
IMHO, it would simplify the creation of rigs with a new and easily expandable design.
You could have a backpane which would get the work with some very cheap microcontroler (even a PIC with Ethernet shield?) where you would plug in small boards containing only some kind of eprom to provide an unique serial number (so the microcontroler would forward the work to the proper chip) and the FPGA/ASIC itself.
Even the power bus would be standard and could be populated with fan connectors.

Sorry if the question seems too stupid, I'm just trying to understand why people chose the designs they have, which seem to increase greatly the costs, reducing the resale value.
All the designs I've seen are too expensive for me, as far as the cheapest FPGA I've seen, capable of mining, costs $300, way more the ~$150 I would be able to spend.

Maybe I misread you, but are you implying that a 15,000 dollar mini-rig could be made cheaper by not using SATA cables for their I/O (which doesn't actually use SATA, just the cables)? Or are you just wanting a PCIe FPGA that you throw inside your computer just like a video card?


With the way the minirig is assembled, they couldn't make it that way with backplanes anyhow, it'd require actual cables.

A PCI-E-based board dedicated to mining would essentially just be an existing two or four Spartan 6 board with a serial to USB chip plugged into a USB to PCI-E host chip and all power supplied off a PCI-E 6 pin plug fabbed on a standard PCI-E board shape.

Can't pcie slots provide up to 75W of power?

Yeah, but you're limited to 150w total across the entire motherboard. Same reason you're boned if you try more than two 5970/6990/7990 and aren't using powered risers.
949  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 02, 2012, 02:17:03 PM

re SATA plugs: they're just reusing an industry standard connector. It has enough pins to run serial over, so its fine. External 4x SATA/SAS has often been ran over Infiniband connectors because its cheaper and higher quality than using eSATA, and I've seen other things reuse SATA plugs. Its not particularly a new idea.

You can't reuse ASICs because they're designed specifically to ONLY for this. Thats why its an ASIC.

BFL FPGAs COULD be repurposed, but BFL requires encrypted bitstreams.

As for SATA connector's that's quite interesting, but it leaves me another question: as far as I understand, there is no need of high speed communications to feed the FPGA/ASIC and it's always needed a PC to access the pools and feed the jobs, so, why don't they use the PCI bus inside the computer? Or even the PCIe?
Other designs I've seen in this forum, use Molex connectors, and I still don't get it, why not ISA/VESA/AGP/PCI/PCIe type connectors?
IMHO, it would simplify the creation of rigs with a new and easily expandable design.
You could have a backpane which would get the work with some very cheap microcontroler (even a PIC with Ethernet shield?) where you would plug in small boards containing only some kind of eprom to provide an unique serial number (so the microcontroler would forward the work to the proper chip) and the FPGA/ASIC itself.
Even the power bus would be standard and could be populated with fan connectors.

Sorry if the question seems too stupid, I'm just trying to understand why people chose the designs they have, which seem to increase greatly the costs, reducing the resale value.
All the designs I've seen are too expensive for me, as far as the cheapest FPGA I've seen, capable of mining, costs $300, way more the ~$150 I would be able to spend.

Maybe I misread you, but are you implying that a 15,000 dollar mini-rig could be made cheaper by not using SATA cables for their I/O (which doesn't actually use SATA, just the cables)? Or are you just wanting a PCIe FPGA that you throw inside your computer just like a video card?

With the way the minirig is assembled, they couldn't make it that way with backplanes anyhow, it'd require actual cables.

A PCI-E-based board dedicated to mining would essentially just be an existing two or four Spartan 6 board with a serial to USB chip plugged into a USB to PCI-E host chip and all power supplied off a PCI-E 6 pin plug fabbed on a standard PCI-E board shape.
950  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 02, 2012, 02:12:30 PM

re SATA plugs: they're just reusing an industry standard connector. It has enough pins to run serial over, so its fine. External 4x SATA/SAS has often been ran over Infiniband connectors because its cheaper and higher quality than using eSATA, and I've seen other things reuse SATA plugs. Its not particularly a new idea.

You can't reuse ASICs because they're designed specifically to ONLY for this. Thats why its an ASIC.

BFL FPGAs COULD be repurposed, but BFL requires encrypted bitstreams.

As for SATA connector's that's quite interesting, but it leaves me another question: as far as I understand, there is no need of high speed communications to feed the FPGA/ASIC and it's always needed a PC to access the pools and feed the jobs, so, why don't they use the PCI bus inside the computer? Or even the PCIe?
Other designs I've seen in this forum, use Molex connectors, and I still don't get it, why not ISA/VESA/AGP/PCI/PCIe type connectors?
IMHO, it would simplify the creation of rigs with a new and easily expandable design.
You could have a backpane which would get the work with some very cheap microcontroler (even a PIC with Ethernet shield?) where you would plug in small boards containing only some kind of eprom to provide an unique serial number (so the microcontroler would forward the work to the proper chip) and the FPGA/ASIC itself.
Even the power bus would be standard and could be populated with fan connectors.

Sorry if the question seems too stupid, I'm just trying to understand why people chose the designs they have, which seem to increase greatly the costs, reducing the resale value.
All the designs I've seen are too expensive for me, as far as the cheapest FPGA I've seen, capable of mining, costs $300, way more the ~$150 I would be able to spend.

Backplanes are expensive. Reusing SATA is the cheapest industrial internal connection by far. Its cheaper than using DB9 serial connections as well.

As for you being unable to afford it... well, thats the way it is. These parts cost money. There is no cheap solution.
951  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 02, 2012, 01:08:17 PM
Latelly, I've been seeing pictures of BFL's in this forum with an Sata connector.
I even saw one picture some one posted with lot's of connectors and, although I realised their purpose is to provide a communication link, the first thing I thought they were was to connect an hard drive and create hardware encryption like this one: http://www.cast-inc.com/ip-cores/encryption/sha-256/index.html
So, two thought rushed through my brain:
- Why can't we use one of this to mine?
- Why can't we re-purpose BFL's and *ASICS to do hardware encryption?
The latest thought would impact the resale value, right?

re SATA plugs: they're just reusing an industry standard connector. It has enough pins to run serial over, so its fine. External 4x SATA/SAS has often been ran over Infiniband connectors because its cheaper and higher quality than using eSATA, and I've seen other things reuse SATA plugs. Its not particularly a new idea.

You can't reuse ASICs because they're designed specifically to ONLY for this. Thats why its an ASIC.

BFL FPGAs COULD be repurposed, but BFL requires encrypted bitstreams.
952  Economy / Securities / Re: Financial report for the month of May 2012 on: June 02, 2012, 10:49:19 AM
Starting today, I am changing the "bonds for DMC" deal. Before I was trading 2 mhash in bonds for 1 share of DMC, now it will be 2.25 mhash per 1 share of DMC. Next month I will be changing it to 2.5 mhash per 1 share of DMC.

doesn't that cause dilution to your earlier investors?

No, opposite. I require people to trade in more bonds to get the same number of DMC than before. So, if you had 2 bonds of 1mh each, I would trade 1 DMC to you. You now need 2 and a quarter bonds to get the same 1 DMC, and next month you will need 2 and a half bonds to get the same 1 DMC.
953  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 01, 2012, 04:42:48 PM
Doesnt Altera offer Hardcopy? BFL could very well be selling ASICs.... just SASICs instead of the kind we wanted.
[/b
Yes, Altera has the Hardcopy program.
But BFL has stated to announce full custom ASIC's.
An Altera Hardcopy solution is not the thing which is named a full custom ASIC.
 

They also announced 1gh in 40 watts.

I'm not sure, but wasn't it 1.05GH @ 20W.
However, I understand what you want to say and I also have my doubts.
Let's see with what they really will come up. The technical data (e.g. MH/W) will show us what technology they are using....

Thats funny, I originally wrote 20, but thought that was too low for some reason.
954  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 01, 2012, 04:42:03 PM
Well if they have access to wafer chip manufacturing, then why would they manufacture FPGA when they can do ASIC ?
I think more likely they got a good deal on these chips somewhere.

I remember guy with Extraordinaire rig, had a part that was advertised for $2k officially, yet a phonecall got it for $600.
LOL no not quite. I meant ringing up Altera and saying "Yo, we want 10K chips, start the foundry pls"

And my board was bought on eBay, that's how I got it cheap. Wink

eBay, the only place you can get $600 parts for $25 just because its an enterprise part and some IT department in some company somewhere is in a protracted war against their accounting department.
955  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 01, 2012, 04:35:49 PM
Doesnt Altera offer Hardcopy? BFL could very well be selling ASICs.... just SASICs instead of the kind we wanted.

Yes, Altera has the Hardcopy program.
But BFL has stated to announce full custom ASIC's.
An Altera Hardcopy solution is not the thing which is named a full custom ASIC.
 

They also announced 1gh in 40 watts.
956  Bitcoin / Hardware / Re: Mini Rig card = 2 x Altera Arria II EP2AGX260 on: June 01, 2012, 04:27:58 PM
Doesnt Altera offer Hardcopy? BFL could very well be selling ASICs.... just SASICs instead of the kind we wanted.
957  Bitcoin / Hardware / Re: Algorithmically placed FPGA miner: 245MH/s/chip and still rising on: June 01, 2012, 04:24:50 PM
BTW, change the title of the thread. Its no longer 245.
958  Bitcoin / Hardware / Re: Algorithmically placed FPGA miner: 245MH/s/chip and still rising on: June 01, 2012, 02:32:26 PM
So just out of curiosity: Is it possible to run this stream on the BFL Singles and get more hashes out of them?
(And if so, who will be the first to report the succes? Smiley)

No, they don't use Spartan 6s.
959  Other / Off-topic / Re: Just walkin' along... on: June 01, 2012, 02:09:45 PM
Yes, it will be using a standard ATX power supply.

Hopefully GOLD certified ?

Hopefully industrial/enterprise and not consumer. Industrial/enterprise PSUs were 80plus long before Antec created that silly pissing contest between them and PC Power & Cooling, and you can even get ones that are 95+% efficient if you look hard enough.

In addition, Gold is only ~87% at 100% load efficient. Consumer 120v PSUs can be Platinum rated (~89% at 100%), and 230v and/or Redundant PSUs can be rated Titanium (96% at 50%, 91% at 100%).
960  Other / Off-topic / Re: Just walkin' along... on: June 01, 2012, 09:33:15 AM
So I'm out, just taking a stroll down the road, and what did I find in my path?



Yeah... so I went to BFL and asked them about it.  Seems there were some cylons...err I mean RigBox parts everywhere.  The renders don't exactly convey what a beast the rigbox really is.


Weird, I thought that'd be exactly what it looks like. A low power board that is loaded with serial ports.
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 [48] 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 ... 118 »
Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!