Side view:



Side panel off:



Close up of Radeon 7970's:



CPU cooling block loop:



Stats:
Case: Corsair 800D
Motherboard: ASUS Maximus V Extreme
Processor: Overclocked Intel Core i7 3770K 4.1GHz - 4.4GHz LGA 1155
GPU: Radeon 7970 x2
Power Supply: 1.2 Kilowatt Corsair AX1200i Digital PSU
Memory: 16GB Corsair Vengeance DDR3 1600Mhz (4x4GB)
Storage: 120GB Corsair Force GT - Solid State Drive

GPU's and CPU liquid cooled, everything else air cooled with 12 silent high flow fans.

Yes, you left out the parts where you went silent for weeks at a time instead of hastily providing a refund.

It doesn't take three months to figure out that there's a bad account number.

You're correct, now that they have "fixed" their system I have 0 btc.

Here's a follow up with more information about how the refund process went.

I wanted to let you all know about my experience so you won't make my mistake.

On 9/16/2013 I wired $8,000 to:

Enterprise Focus, Inc.
4728 Commercial Ave
Everett, WA 98203

The payment was for their product "BitFury 400G Bitcoin Mining Hardware".

The product description stated that the item was to be delivered in October.

On 10/30/2013 I contacted megabigpower using the contact form on their website to request a refund because the product had not been delivered by the promised date.

I received this reply from Kat Huntley:

---
I received your request for a refund.  It looks like you originally sent a bank transfer as the method of payment - in order to do the refund we will need your banking information (account #, routing number, name and address of your bank, etc.).  As soon as we receive that information I will send in a request for a refund.  In the meantime, your order has been marked as "refund pending" in our system, so your product will not be shipped out by mistake.
---

I provided the bank account information (odd that they would ask for that, you'd think they'd have that since I had previously wired them 8 grand).

On 11/7/2013 I had not received the refund so I emailed Kat:

---
I haven't received the funds in my partner's bank account yet so I'm growing concerned.

Others are messaging me on bitcointalk and asking me if I got my refund because they didn't either.

I would like to be able to tell them I got my refund so they won't be so worried.
---

I received this reply:

---
I talked with Dave about this earlier.  He has to physically go down to the bank to initiate a wire transfer and is hoping to be able to take care of a couple of pending ones that he has within the next couple of days.
---

I don't see how this is my problem. The man owes me 8 grand. If he has to fly in on an ornothopter he'd damn well better get it done.

I did not receive the refund, and after a week I wrote to Kat again:

---
It has been a week and we have not heard back from you regarding the refund.

This is a big deal. My partner and I need Dave to go to the bank today and do the wire transfer to my partner's account.

Please confirm that you have received this communication by email or phone today.
---

Kat replied the following day:

---
Dave will get to the bank as soon as he can so that he can take care of this.  I'm sorry for the delay.
---

We did not receive any contact from the company after that until 12/2/2013, despite my partner informing both Dave (the owner and CEO of the company) and Kat that he intended to file a police report and follow up with a lawsuit if needed.

From 12/7/2013 to 1/22/2017 emails went back and forth between me and Dave with Dave providing various excuses why he had not wired the money back to me:

1. He didn't like my partner's threatening tone.
2. It was the holidays and he wasn't able to get to the bank.
3. The bank had rejected the wire transfer (twice).

After excuse #3 I called Dave's bank to see if he had initiated a wire transfer. The bank said the wire transfer ID provided was invalid and probably had been fabricated.

On the 22nd Dave replied that he had sent the wire transfer again, and a few days later I received the funds in my bank account.

So, to summarize:

I placed my order in early September for delivery in October. At the end of October I requested a refund, which I did not receive until January, three months later.

I was messaged privately by another of the company's customers who told me they never received delivery of the product they ordered and as far as I know they did not receive a refund either.

Hi all,

This is a report on my experience with a company 'megabigpower.'

I wanted to let you all know about my experience so you won't make my mistake.

On 9/16/2013 I wired $8,000 to:

Enterprise Focus, Inc.
4728 Commercial Ave
Everett, WA 98203

The payment was for their product "BitFury 400G Bitcoin Mining Hardware".

The product description stated that the item was to be delivered in October.

On 10/30/2013 I contacted megabigpower using the contact form on their website to request a refund because the product had not been delivered by the promised date.

I received this reply from Kat Huntley:

---
I received your request for a refund.  It looks like you originally sent a bank transfer as the method of payment - in order to do the refund we will need your banking information (account #, routing number, name and address of your bank, etc.).  As soon as we receive that information I will send in a request for a refund.  In the meantime, your order has been marked as "refund pending" in our system, so your product will not be shipped out by mistake.
---

I provided the bank account information (odd that they would ask for that, you'd think they'd have that since I had previously wired them 8 grand).

On 11/7/2013 I had not received the refund so I emailed Kat:

---
I haven't received the funds in my partner's bank account yet so I'm growing concerned.

Others are messaging me on bitcointalk and asking me if I got my refund because they didn't either.

I would like to be able to tell them I got my refund so they won't be so worried.
---

I received this reply:

---
I talked with Dave about this earlier.  He has to physically go down to the bank to initiate a wire transfer and is hoping to be able to take care of a couple of pending ones that he has within the next couple of days.
---

I don't see how this is my problem. The man owes me 8 grand. If he has to fly in on an ornothopter he'd damn well better get it done.

I did not receive the refund, and after a week I wrote to Kat again:

---
It has been a week and we have not heard back from you regarding the refund.

This is a big deal. My partner and I need Dave to go to the bank today and do the wire transfer to my partner's account.

Please confirm that you have received this communication by email or phone today.
---

Kat replied the following day:

---
Dave will get to the bank as soon as he can so that he can take care of this.  I'm sorry for the delay.
---

We did not receive any contact from the company after that until 12/2/2013, despite my partner informing both Dave (the owner and CEO of the company) and Kat that he intended to file a police report and follow up with a lawsuit if needed.

From 12/7/2013 to 1/22/2017 emails went back and forth between me and Dave with Dave providing various excuses why he had not wired the money back to me:

1. He didn't like my partner's threatening tone.
2. It was the holidays and he wasn't able to get to the bank.
3. The bank had rejected the wire transfer (twice).

After excuse #3 I called Dave's bank to see if he had initiated a wire transfer. The bank said the wire transfer ID provided was invalid and probably had been fabricated.

On the 22nd Dave replied that he had sent the wire transfer again, and a few days later I received the funds in my bank account.

So, to summarize:

I placed my order in early September for delivery in October. At the end of October I requested a refund, which I did not receive until January, three months later.

I was messaged privately by another of the company's customers who told me they never received delivery of the product they ordered and as far as I know they did not receive a refund either.

A couple of weeks ago I was going through my bookmarks and remembered a long time ago I'd mined with 50btc, so I logged in to see if I had a few coins in there I had forgotten about that I could cash out.

When I got logged in I found that I had over 160 BTC!

So I went to cash out and kept getting errors when trying to send BTC to my address.

Then I read their news and found that their system had been compromised ( https://50btc.com/news ).

The last update they posted was on October 28 and no news since them. I have contacted them twice with no reply.

160 BTC is worth a LOT of money.

Does anyone know what's going on with them? Is there any way to get the BTC they owe me?

It looks like this project is dead.

I needed to receive the hardware in October to ROI. I did not, so I need a refund.

To keep waiting would be to say you want to lose money.

I paid via wire transfer.

Honestly I feel that paying for anything with BTC is just stupid. I only use it for exchange for other currencies due to its volatility.

I didn't say anything about December delivery.

That said, I did get a response when I put in a refund request using Megabigpower's refund request form on their merchant app.

They said they are processing my refund request now.

Hello all,

Did anyone buy hardware from Megabigpower for delivery in October?

If so have you successfully contacted them about refunding the difference between an October and December delivery?

Do you feel this reply adds to the conversation?

[__] Yes
[ X ] No

Mark reply as troll bait?

[__] No
[ X ] Yes

I remember way back when BFL first started posting to forums they were saying that they were planning to ship product within three months (HAHA, OH GOD, HAH) and that if you pre-ordered you'd have product in hand within that time frame.

BFL has tried really well to do well by their customers but it was nearly impossible because of a lot of factors, some of which I'll list here:

1. The founders started out with zero experience and zero knowledge of product design and manufacturing, so there was a lot of trial and error, and every time there was an error it added months to the research, design and production of their product.

2. Because they were naive they were also very gullible. Every time the facilities working on their products screwed up or missed a deadline they offered BFL some kind of shiny reward for not dumping them and instead of sticking to their guns BFL took the shiny reward (more wafers in a shorter time, brushed metal cases instead of plain ones, etc etc).

3. Because their initial design was shit, they had to keep revising the product after they had already started production of parts. For example, they had already started producing standard mount chips before they realized that they couldn't keep them from overheating. They had to stop production of their chips altogether and start over with flip chips, which required the additional step of "bumping" the chips (adding little solder balls to them so they could be mounted upside down).

4. They are located in the US, so every company they went to with their product design knew they would be loose with money and so of course they over-charged them and took their sweet time producing parts for them while the other products being produced for other companies for companies who were much less patient and could have gone to any number of other fab houses got pushed ahead of BFL. Meanwhile the fabs kept telling BFL any day now, any day now.

BFL took WAAAAY too much time making sure they produced a beautiful, functional, aesthetically pleasing box that you're going to throw in a closet or garage and ignore.

What BFL should have done was what Avalon did: Start with a working design, test it, slap that shit in an ugly box and ship it. Fucking ship it. Just fucking get it out the door.

But no. They nit picked over every single tiny detail and so every product they've shipped has been either completely obsolete or nearly obsolete before it even got to their customers.

Look at all the people who ordered Jalapenos: The damn things aren't ROIing even now but there are still people waiting for their pre-orders.

I don't feel that BFL knowingly sold product they knew would be obsolete in order to fund their Monarch product. I believe what happened is that BFL simply wasn't able to meet the deadlines they thought they would because they didn't have the experience to produce product like Avalon.

I also believe that by the time they get the Monarch out the door (probably around Septermber-October next year) not only will the product be obsolete, but that most people won't be bothering with mining anymore because the network difficulty will be so high that it won't be possible to produce hardware that can mine efficiently enough to make a profit.

At that point what is supposed to happen is that people begin trading bitcoin instead of mining.

I'm anticipating one of two things will happen:

1. Bitcoin will become scared and the price will shoot up as people stop mining and start trading. The scarcity will come from all the people who bought mining hardware, did their mining, then cashed out their BTC for products, services or cash. The value of Bitcoin will spike for a while, then it will abruptly fall off because all the BTC will be with so few holders that no one will be able to trade for it (this is what typically happens with any capitalist economy).

2. The Bitcoin market will crash and everyone will dump the network because they're not forex traders, they're nerds with specialized computer hardware. I'm speculating that a good 90% or more of the people who mine Bitcoin have no concept of how to trade currencies and are only in it until mining is no longer feasible.

You don't need a fan for one Erupter.

The cooling block on top of the board is good enough.

You'd only need a fan if you're running several of them close together, such as ten in one USB hub, because the multiple heat sources close together cause a higher aggregate temperature.

I did a lot of research on this a while back.

You can actually buy mineral oil cooling rigs online.

The problem with cooling with oil is that oil doesn't absorb heat as readily as water or the cooling liquid specifically designed for PC cooling.

Also, it takes a very strong pump to circulate oil through a heat exchanger -- you can't just use a pump designed for water, or if you are able to the pump will have a very short useful life.

Next to cryogenic cooling, oil cooling is probably the most expensive and troublesome type of cooling you can use.

Hi all,

I know a lot of people are excited about receiving their BFL product and BFL is really starting to catch up on back orders, so I thought I'd share my experience.

I received my tracking number on 9/18/2013. The subject of the email was "Your order has been shipped!".

On 9/20/2013 I received the package from USPS (yes, they ship express mail, the worst possible courier option).

The product was fitted in to a "large flat rate" box. The box is not very sturdy, so when the unit arrived it was a little banged up and scratched despite being shipped surrounded by custom foam inserts.

Items in the box:
1 power supply (Made in China)
1 power supply to dual PCIe connector cable.
1 USB cable (they've started shipping longer USB cables since people complained I guess)
1 Butterfly Labs Single SC
1 instruction card

I was very excited to get mining with the product so I took it out, read the instructions thoroughly several times.

To get the setup instructions you have to go to a website and download a PDF. That's a good way to save money on printing costs.

After I made sure I understood the setup instructions I connected the power supply to the Single SC and plugged it into the wall socket.

Nothing.

The light on the power supply did not come on. The fans on the Single did not spin and make noise like I had seen in Youtube videos.

I checked the 110/220 switch on the power supply to make sure it was in the right position. I tried toggling it, but when I attempted to slide the switch the switch backed off into the interior of the power supply and felt like it would snap off with the gentlest touch, so I tossed the power supply aside and sent email to BFL to request a replacement.

Of course it will probably be months before BFL responds to my email, so I just went to Best Buy and bought a cheap 500W ATX power supply.

I then jammed a paper clip into the black and green contacts on the mother board connector of the power supply, plugged the two PCIe connectors into the BFL Single SC and plugged the new power supply into the wall socket.

Bam. Everything started up. BFL had shipped a faulty power supply.

I first tried mining with bfgminer. Bfgminer detected both my Single SC and 29 of my 30 Block Erupters (I've had trouble off and on with getting Erupter #30 detected).

However, I had trouble getting work from the mining pool I had been mining with because it doesn't support Strata and couldn't send work fast enough for my gear to work at its full potential.

So I downloaded and installed BFL's Easyminer. It's not just a clever name, it's pretty easy to set up.

Easyminer is pretty braindead and so its functionality is also very limited: There are two options for configuring your mining pools. The first is to choose between two provided pools and the second is to set up everything completely manually by typing your command line switches for your miner (bfgminer or cgminer are your only choices and there's no way to add other miner softwares).

I decided to go ahead and use the two provided pools with the default settings and pasted in my bitcoin address to receive payments.

Once I started up Easyminer with the default settings it quickly received plenty of work from the pool and began hashing at a steady 59.248 GH/s.

Since that was working I decided to start up my own install of bfgminer to see what would happen.

I was happy to see that bfgminer skipped the SC Single that was already in use and started up with the available Block Erupters.

So I now have the Single SC running in Easyminer hashing away on the new pool and my Block Erupters hashing away on the old pool, both on the same computer.

Now that I have replaced the power supply I am happy with my purchase. I knew going into this that the power supply was a free gimme and I was half expecting to have to provide my own power supply anyways.

I suspect that BFL is running damage control by shipping using a cheap courier in flat rate boxes and ignoring people who complain about receiving banged up and broken equipment for months so they can get product out the door and stop the bleeding.

After waiting almost exactly one year for my product I'm just glad I've finally received it and got it working so I can finally disengage with their snotty little ecosystem of arrogant and flippant employees who screwed up my order several times and then acted like it was my fault.

Now to set expectations for those still waiting for shipment:

• There's a good chance when you get your package your shit will be broken. It is packaged exceptionally poorly for such an expensive piece of equipment.
• If your shit is broken you probably won't get a replacement for several months at which point your investment will no longer be of any value.
• Just go ahead and go buy a power supply and have it ready for when your product arrives and save yourself the headache.
• Whichever pool you're on, if it's not specifically set up for ASIC mining, you probably won't be able to hash at full speed because getworks will be too slow so pick a pool that is specifically for ASIC mining.
• The Single SC is VERY LOUD. It sounds like a salon grade hair dryer. You'll want to put it somewhere that you won't be sleeping.

This is provably not a driver/OS issue.

If the same device is plugged into one hub it does not work and the error is presented. However, if it's unplugged and plugged into another hub it does work and the error is not presented.

If Windows is reporting ERROR_ACCESS_DENIED maybe Windows is reporting that error because of a problem that is different than the one you anticipated.

If you could anticipate every possible scenario there would never be bugs in your software and you'd be omnipotent.

Why don't you just buy hubs that work?

They cost more money but in the time you're waiting for new hubs and re-soldering them you could be mining.

That's an awesome thread, thanks!

I read through the first ten, last ten and middle ten posts.

People are saying that the USB2.0 hubs start to fail after you plug in a varying number of devices, but none of them can power Block Erupters if all of their ports are populated with them.

They are saying that the USB3.0 hubs provide 12V 3A = 36W which is more than enough to power Erupters in every port, which is consistent with my testing.

On Windows it seems bfgminer doesn't know the difference between a problem with user access privileges and a device not responding/device sending back bad data due to a low power condition.

The error doesn't make sense on Windows since there's no user privileges restriction on non-storage USB devices.

I tested this by using a USB2.0 powered hub that doesn't provide enough power to operate Block Erupters and a USB3.0 hub that provides adequate power.

With the USB2.0 hub that did not provide enough power, when more than 2 block erupters were plugged in an error was reported by bfgminer on startup:

"Do not have user privileges required to open \\.\COMxx"

...where "xx" is a port number.

When I plugged the devices into a USB3.0 hub that provided adequate power for all the devices the error went away.

I was able to replicate this consistently by switching between the powered hubs.