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1  Economy / Computer hardware / Selling Chips, tested: $500/chip PM me or reply with questions on: May 06, 2014, 06:07:24 PM
Selling HashFast Golden Nonce chips. Tested and working, we have 20 chips in hand and ready to populate boards.  Will do escrow if interested.

Specs:
High performance 28nm ASIC mining chip
Hashing Output: Up to 800 GH/s (overclocked)
Hashing Output: 400 GH/s (nominal)
Power Consumption at the chip: 0.65 Watt per Gigahash /sec +/- 20%
Die has built in thermal controls that allow the chip to pushed to the edge without damaging cores
Designed to be under-clocked for greater efficiency, and overclocked for greater performance

PM or reply with questions.
2  Bitcoin / Hardware / Re: VMC Fast-Hash One Prospector 512GH/s 0.7w/GH - Setup Guide on: April 04, 2014, 07:11:46 PM
Is it me or do these look exactly like the HashFast(Scam) boards/chips?

Where/how did VMC acquire these?
3  Other / CPU/GPU Bitcoin mining hardware / Re: Best PDU to break out a 30Amp 220V USA home circuit on: March 21, 2014, 01:17:21 PM
Sure but there are cheaper PDU if you don't need fancy metering capabilities.  Lots of 30A 208V/240V PDU on ebay for $30 to $40 ea.

I kind of like the metering capabilities. Especially since I am splitting this "mining center" with a friend and he has to pay for electricity he uses.

AP7811 for metering without switching.

AP7811 is 24a at 208v. I thought I needed to find a 30a PDU?

24 amps is the continuous load you'll want to put on a 30amp PDU. You want 80% -- 20 amps really shouldn't have more than 16 amp loads on them, and so forth.
4  Other / CPU/GPU Bitcoin mining hardware / Re: Best PDU to break out a 30Amp 220V USA home circuit on: March 20, 2014, 03:08:04 PM
Three phase power is used for heavy loads and is usually not pulled to residential areas. It's essentially 3 feeds, but it uses less conductor material overall, so it's more efficient in the transfer of power.

Single phase is almost always what you'll be dealing with at your house.

Any metered PDU generally does the job, there are a few with network jacks that make things even more configurable remotely (you can turn banks on/off, reset power remotely, etc.). The cheapest brands are generally APC/TrippLite, but they work okay for most people.

Great thank you! And the plug/receptacle doesnt make a difference?

It does, you will either need C19 to C20 cables or C13 to C14 depending on what PSUs you are using. Some PDUs come with a power cord attached, but most come with a C20 socket that you can choose whatever your wall outlet plug style is and then get a C19 on the end of it to hook to the PDU's C20 input.
5  Other / CPU/GPU Bitcoin mining hardware / Re: Best PDU to break out a 30Amp 220V USA home circuit on: March 20, 2014, 02:06:28 PM
Three phase power is used for heavy loads and is usually not pulled to residential areas. It's essentially 3 feeds, but it uses less conductor material overall, so it's more efficient in the transfer of power.

Single phase is almost always what you'll be dealing with at your house.

Any metered PDU generally does the job, there are a few with network jacks that make things even more configurable remotely (you can turn banks on/off, reset power remotely, etc.). The cheapest brands are generally APC/TrippLite, but they work okay for most people.
6  Other / CPU/GPU Bitcoin mining hardware / Re: Best PDU to break out a 30Amp 220V USA home circuit on: March 19, 2014, 01:50:19 PM
Here is a dumb question. I am running Antminers overclocked. And they keep tripping my 15a circuits with just 4.... They take around 425 watts each. Does a PDU allow you to somehow run more power on a circuit than if you were to run it straight through?

No.  But a 30A 240V circuit is going to have 4x the wattage of a 15A 120V one.

Yeah I assume installing that and running wire to a second story would be pretty dang expensive.


It's generally not that expensive when you consider the return on your investment in this space.
7  Economy / Service Discussion / Re: Coingig.com Closing Down! on: February 11, 2014, 01:38:06 PM
Sad indeed. I'm curious to the whole story of this--they were doing some great things for marketplace adoption.
8  Economy / Service Discussion / Re: New Mt Gox Press Release - Feb 10 - they are claiming flaw in bitcoin protocol ! on: February 10, 2014, 03:58:07 PM
How can we get MT Gox stripped from the Bitcoin Foundation along with it's CEO, Mark Karpeles?

This is doing tremendous damage to the community and they're still plastered all over the face of the Foundation that is supposed to be helping the community grow.

Keep protesting and demanding he resign or be booted out.

I would assume other BF members have some pull and can force a resignation as well as also strip away a "Platinum" membership rating.
9  Economy / Service Discussion / Re: New Mt Gox Press Release - Feb 10 - they are claiming flaw in bitcoin protocol ! on: February 10, 2014, 03:45:20 PM
How can we get MT Gox stripped from the Bitcoin Foundation along with it's CEO, Mark Karpeles?

This is doing tremendous damage to the community and they're still plastered all over the face of the Foundation that is supposed to be helping the community grow.
10  Bitcoin / Mining speculation / Re: Is GPU mining even worth an investment? on: February 10, 2014, 02:45:20 PM
GPU mining is certainly still profitable on Scrypt.

It is not profitable to mine any coin built on SHA-256.

Things to consider about starting to acquire a fleet of miners or GPUs: heat & electricity. Also, you should have some sort of fire suppression system in place if you care about the building you are doing this in.
11  Bitcoin / Meetups / Re: North American Bitcoin Conference - Miami Beach - Jan 25 & 26th, 2014 on: February 10, 2014, 02:37:21 PM
Hi guys,

Not a secret agent, just dealing with 1mbps upload speed in Mexico at the moment. Will have a lot more this week when I have normal speeds.

They will all be on the bitcoin miami channel on YouTube. More to come.

Moe

Awesome, can't wait for the rest of these.
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