Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 348. (Read 527816 times)

The corsair one is decent, its ridiculously overpriced but its in no way bad, at all. I would use it for sure if i had it, though i would never pay that much for a PSU that has lower end components than the G2, even though it has marginally better efficiency. At full load, it does not really have better efficiency.

It doesn't handle overload as well as the EVGA's, you will not see such a tight ripple effect and as stable voltage(Though completely acceptable). And i honestly don't know how well it would handle 1300-1350W load from OC'ing the miner, while the EVGA G2 1300w will handle it.

Still for the S7 run around normal clock, the corsair one is great.

I wouldn't touch XFX hardware, PSU nor GPU.

The corsair one is decent, its ridiculously overpriced but its in no way bad, at all. I would use it for sure if i had it, though i would never pay that much for a PSU that has lower end components than the G2, even though it has marginally better efficiency. At full load, it does not really have better efficiency.

It doesn't handle overload as well as the EVGA's, you will not see such a tight ripple effect and as stable voltage(Though completely acceptable). And i honestly don't know how well it would handle 1300-1350W load from OC'ing the miner, while the EVGA G2 1300w will handle it.

Still for the S7 run around normal clock, the corsair one is great.

I wouldn't touch XFX hardware, PSU nor GPU.

I'm happy with these:

Done the job for 2 years straight!

People like to cheap out on PSU for some reason. Personally i'm going pure EVGA. I started with EVGA, then got some server PSUs with high efficiency and a cheaper Gold PSU but its kind of an hassle and the price wasnt much lower than some good old EVGA G2.

They even run great at 100% load, so for a antminer S7, i would definitively go for a EVGA G2 1300. The 10years warranty doesn't hurt either.

It looks like you guys like to check different PSU combos while the good old EVGA 1300 with two PCie splitters (put on two single red cables) is perfectly up for the job.

It looks like you guys like to check different PSU combos while the good old EVGA 1300 with two PCie splitters (put on two single red cables) is perfectly up for the job.

Why would that matter? My guess is that the 1 PSU alone didn't have enough power?

Regarding adding multiple PSU's etc, I can recommend add2psu adapters. http://www.add2psu.com/
You could get these to power the hashing boards first, and controllers later.

I used them on my GPU rigs back in the day.

Edit:

DO NOT use these on multiple circuits!

Are you sure about that ATCkit? I guess you are if you're doing it! ^^

Built in my recreation room downstairs just for home mining:

https://i.imgur.com/HiyhZ6j.jpg

ALL of this gear is gone now awaiting S7's:  [That is black spray paint on the wall inside the mining closet.  It was as good of a place as any at the time to do some painting].  Five (5) 240V/30A circuits provide power for the Five (5) 240V/30A PDU's.  Two of the PDU's are mounted to the ceiling joists out of the picture.  Don't mind the orange 10/2 wire hanging down.  That's another 240V/30A line I was running that was not completed yet at the time of the photograph.  I had more hardware (S5's) that were put into use on the left side that were not set up yet at the time of the photo.

As you can see... I already have the 220V to 240V outlets with PDU's and I have several Corsair Platinum 860 watt PSU's.  What you don't see in this photo are the 19 IBM 2880W PSU's.  Four of the IBM 2880W PSU's were being used for the 15 SP20's.  The rest are out of the picture.  So, I'm not spending any extra money on outlets, wiring for outlets, PDU's, PSU's, ethernet cords or PCI-e cords.  I already have the peripherals.  I only need the rigs.

The 14,400 CFM exhaust fan is plenty for my present needs of getting the heat out.

https://i.imgur.com/t7UoZWO.jpg

This photo was taken during the initial setup of the hardware.  I'm adding it only to show the size of the mining closet inside:

https://i.imgur.com/mANMnOS.jpg

Why would that matter? My guess is that the 1 PSU alone didn't have enough power?

Regarding adding multiple PSU's etc, I can recommend add2psu adapters. http://www.add2psu.com/
You could get these to power the hashing boards first, and controllers later.

I used them on my GPU rigs back in the day.

Edit:

DO NOT use these on multiple circuits!

Are you sure about that ATCkit? I guess you are if you're doing it! ^^

This makes you wonder if it would be worth installing a cut-off switch on the power cable that connects to the controller.  This would be helpful if you are using a single large PSU...

i 100% agree.. the s7 is too large for a home miner.. you have to get special outlets if you already dont have 30 amp or 220 outlets. takes 2 high end or one large expensive power supply.
you would be lucky if you break even on cost before the block halfs.. if you dont you might not ever.. its not like the price of btc will double overnight..


bitmain should have made smaller home miners, maybe one of the s7 hash boards. i would have replaced my s3s with one of those.

We must ask ourselves, "Would it be beneficial for the big players to get in a hash rate war if the price of bitcoin remains the same or not MORE than double at the time of the block halving?"

The price of bitcoin would have to at least double to see twice the difficulty we see now.  For it to be 3x of todays difficulty, the price of bitcoin would have to be 3x what it is today for it to be beneficial to the big boys after the block halving.

There comes a point in time where it is no longer wise to invest funds into more hash rate if the rate of return does not justify such actions.  Doing so will push out the home miner for a while but certainly not during the winter months.  I know I would keep several of my rigs just for the winter months.  So, if a hardware manufacturer that mines for themselves makes a move in a hash rate war, it will not be in the winter.  It will be in the spring or early summer.  Even then, there is much risk.  They will have to acknowledge they will not have as much return during the hash rate war.  They will have to acknowledge they will not have as much return on their investment during the winter months either.

Let's say they do increase the difficulty so high it pushes out other miners.  They did this while also diminishing their own returns for a little while.  What do you think the other miners [who were pushed out] would do if the price of bitcoin rises to a level high enough to offset the difficulty increase?  They will get back in!!!!!!!  Thereby diminishing the big boys returns once again.  Which would make them wonder if the investment they made for increasing their hash rate was really worth it.  They would have to continue investing more money into more rigs to increase their hash rate even more to push out the little guys.  Also, the big boys have each other to worry about as well to make them wonder if it was really worth the investment to increase their hash rate.

So, the big boys have a LOT to think about if they wish to increase their hash rate exponentially.  It could very well back fire on them.  However, it may be a risk they are willing to take if they have enough capital sitting by for the long rainy days that will occur from such action.  Their return on investment would take much longer from such action.  If they add more hash rate after an increase in bitcoin price to push out miners who got back in the game, it would only mean more capital spent and more equipment to be concerned about making ROI.

There is definitely much to take into consideration by the big boys if they wish to get into a hash rate war.

I had 1 PSU powering the boards and the controller.  I put another psu on the controller and booted up the boards first, and now it is running at full speed.  Thanks for the advise you two..

I had 1 PSU powering the boards and the controller.  I put another psu on the controller and booted up the boards first, and now it is running at full speed.  Thanks for the advise you two..