It was 150USD

He's referring to the large inductor and various capacitors you see in the top right corner underneath the 6 pin PCI-e jacks:

I would agree with using your hand to investigate.  What I did was use two fingers extended out over the edge over the back fan and the front fan.  I would move my two fingers (index and middle finger) around the edge in a circular motion until my fingers were at a point where the noise was no longer audible.  Once I found the location where the air being sucked in was no longer audible, I placed only one finger (my index finger) over the same spot and the sound was still no longer audible until I moved my index finger to another location.  So, I was able to find the "sweet spot" to place the tape on the grille of the intake fan in front.

Every rig does not have the radiator type heat sinks in the exact same location on every chip.  Some could be off or aligned in a certain way after manufacturing that allows for a whistling sound as wind is sucked in between the fins of the heat sinks when they are positioned just right.  Since every rig does not have heat sinks in the exact same location and the exact same size [varying by thousandths of an inch]... this whistling noise is audible only on a small percentage of rigs that have these heat sinks aligned just right to allow for this audible noise.

This is why I feel a small piece of tape is sufficient to reduce the amount of air across particular heat sink(s) causing the noise.  I noticed one miner had placed a piece of foam on the shelf in front of the fan to reduce the noise because that just happened to be the location on his particular S7 where heatsink fins were aligned just right to allow for the whistling noise.  The location of where the wind rushes in across heatsinks will vary from one rig to another more than likely.

When the site goes down, a lot of times this means they are editing and/or adding something new.  We'll see...

Thank you, it works for me.

Totally agree.  I like the heat as well except for the summer time.



I run my business [training telephone technicians] out of my home.  I have business insurance for equipment in my home office.  I need to upgrade my insurance to include more equipment.  I have $25,000 insurance on office equipment at the moment.  I only have 11 x S7's at the moment.  So, I'm still covered for now.  I will upgrade to $75,000 to cover the additional rigs I'm getting fairly soon.

As for your "definition" of home mining; I'm probably about to re-define it.  I did have 44 rigs in my home before I sold them to get S7's.   I would not be surprised if there is someone out there already with 96,000 watts or more mining away in their garage.

Not if the fan is connected to a different main service panel to suck out the CO2.  I've already thought of this.  The quick disconnect switch would be connected to the other two panels used for mining closet.

Obviously, you only seek to find fault with anything I say.  I've already said the downstairs room is cut off from the rest of the house with french doors as well.  So, the exhaust fan [on a different main service panel] would not be cut off when the power is shut off on the other two panels to suck out CO2 and the french doors keep any residual CO2 remaining from coming upstairs.

Do you actually think your negative connotations are getting you anywhere?  

Can one not have the means for power to shut off if smoke or fire is detected by a smoke/fire detector similar to a data center and fire extinguisher system installed that does not use water but smothers the fire with CO2 that leaves no white residue behind to ruin the rigs?  The same thing is used in a mobile data center.

What the hell does 120 kW have to do with the amount of time it takes for a fire to start?  If done safely, there does not have to be a fire at all.

EDIT:  My feeder cable supplying power to my house is only capable of providing 500 amps to the house.  I would have to spend another $5,200 to upgrade my feeder cable to the house to have enough power for  120 x S7's.  I'm NOT doing that.  I would rent/lease at another location before I spent that kind of money to upgrade my power here at the house.  400 amps of 500 amps would be used for mining in my home.  The other 100 amps would power my AC, dryer, stove, fridge, LED lights, etc.  That leaves me 96,000 watts for mining.  Which would be 74 x Batch 8 S7's at 1,290 watts each OR 76 x Batch 5's at 1220 watts each.  Who's to say we don't have a more power efficient rig in the future to allow me to have as many as 90 to 120 rigs instead of 74 rigs?

Improvise...

I'm sure you can think of doing something to contend with the "airplane turbines."  Not even the S3's were designed for home mining if a home miner sought to have considerable hashing power for a home.  There would not only be sound to contend with but also lots of heat.  I know cause I had 18 x S3's along with 6 x S5's, 5 x S4's and 15 x SP20's.  I suppose BITMAIN could make a smaller miner with less hash rate.  However, I'm quite certain people would complain about the price of the miner and the rise in difficulty to boot.

Bottom line:  If someone chooses to mine from their home [With a considerable amount of hashing power], they need to come up with a plan to deal with the heat most of all; as well as a plan to deal with the noise.  I came up with a plan to deal with both and implemented it.  Yes, it was an initial up front investment but it has paid for itself over time.  Even data centers have an initial up front cost to deal with sufficient power, heat distribution and noise distribution if they are concerned with noise.  One needs to be concerned with the heat more than the noise in my opinion.

I would also think it is Bitmain's prerogative to make their miners as they seem fit.  If people don't like them, they don't have to buy them.  Bitmain, designed them for "their" data centers.  If someone wants to build a makeshift data center inside their home like I have, they can manage the heat and the noise to acceptable levels.  Bitmain, is marketing to those with data centers when they engineered, designed and built the S7.  It was not built for those who wish to have a considerable amount of hashing power with several rigs in their homes.

I think its unfair for anyone to criticize the business plan of a business that caters to a particular clientele (data centers) and demean them for not molding their business plan to home miners.  I still say the home miner can be profitable [With some up front costs].  Once those adjustments are made to mine from your home, it would pay for itself in due time.  Probably about a month or two after ROI on your rigs.

Don't think I'm saying you are criticizing Bitmain.  I know you're not.  I'm simply encouraging you and others [Who will mine from their home] to come up with a plan to manage the heat and the noise.


Mining closet built downstairs to contend with the heat and noise.  French doors are at the entrance to this room the mining closet is built in to contend with the noise.  This structure can easily hold 90 - 120 x S7's.  However, I would probably have to upgrade my exhaust fan to a TLI 14,700 CFM belt driven fan.



7400 CFM facing the back yard to exhaust the heat inside of a 422 Cubic Feet Structure:



Grilles installed in the doors to allow the exhaust fan to suck cool air into the structure for the rigs to suck cool air into the intake fans and out to the 7400 heat exhaust fan.  More grilles will be added in other doors as more rigs are added.



So again, don't think I'm getting onto you for your comments about the "airplane turbines."  I'm simply trying to encourage you and others to "Improvise" if you want to manage a considerable amount of hash power out of your home with rigs that are designed for a data center.

Mine was designed and built with the idea of having as many as 90 to 120 rigs inside [Depending on the size of the rigs].  If your idea is something smaller, you could build something smaller on a stand in front of a window with a fan mounted to the window.  I'll post a diagram for a design in front of a window on a stand if you like.  Just give me the size (measurements) of the window with measurements of how far the bottom and top of the window is from the floor.



David

What loyalty did Spondoolies have?  I don't see any rigs available from them...



I have pride enough to know they will back their 90 Day warranty no scruples about it; to know they have delivered an excellent product.  What's wrong with making money?  Are we supposed to secure the bitcoin blockchain for free?



Good for you.  So, I see you are all about making money as well.  However, you make yours with prejudice towards those who will secure the blockchain that you make money off of.  pfft...



Yes, to each their own.  At least I'm not prejudice towards home miners who will buy rigs [From those who actually sell to home miners to help decentralize the mining network] and demean home miners who will buy rigs from a company who will sell to us.  You make your money your way [Without criticism from me] and I'll try to make money my way [Hopefully, without further criticism from you].

I'm not doing jack shit with this card. I refuse to get it. If you read the card agreement, it allows the government to have access to your coin base account to freeze it, take funds from it, confiscate your funds, etc.  it really pisses me off. That's why I'm looking forward to prutus.  

Damn coin-base working with the government to seek "control" over us!

I only put what funds I need to transfer into bank account to pay bills on my internet banking. I will be glad when we have a means of paying bills in the US with bitcoin. Then I won't need coin-base.

Happy to hear that.  It sounded rather unusual

That rig sounds like an RMA.  It's still under warranty.

EDIT:  No, I have not received compensation for my shipment that was 4 days late for 9 x S7's.

My opinion is when the new rig put up for sale has less hash rate while consuming more watts it should be priced lower.  At present, the rigs are priced at .001 BTC per GH/s.  When the rigs are lower hash rate and less power efficient, they should be priced at 0.0009 BTC to 0.00095 BTC per GH/s.

4,730 GH/s x 0.00095 BTC = 4.4935 BTC + shipping
4,730 GH/s x 0.00090 BTC = 4.257 BTC + shipping

I'm pretty sure they will.  We may see a Batch 9 once Batch 8 is close to completely sold.

I can agree with that depending on the type of payout system.  I would say a week is sufficient for PPS payout system in pools.  However, if you are comparing PPLNS payout system pools, one month isn't quite good enough.  One would have to mine for at least 3 months on each PPLNS pool to get an idea.  Mathematically, the PPLNS payout system pools should perform fairly close to the same over the course of one year IF they have the same hardware on the front and back ends.  One easily comparable feature to separate PPLNS pools will be its fees.

In some cases, inductors are installed to offset the affects of capacitance.  Especially, when high frequencies are involved.  Those round components near the inductor looks like capacitors.  It has me curious as well.

Exactly...

I had an S5 of mine hacked into once when mining on Slush.  I don't know if they did it through Slush or what.  Ever since then [About a year ago] I no longer left factory password on there.

Factory reset with a paper clip.

Were those 3 x S7's you have connected together done with factory 18 pin ribbon cables, J4bberwock 18 pin ribbon cables or 18 pin ribbon cables you made yourself?