Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 38. (Read 528055 times)

i tired for a couple of hours to mine from the ppcoind client on linux.. it always showed DEAD on the miner :/

i pointed my 2 s5s on here, each one has found blocks so far..

i think that is more then they would have found mining bitcoin and still a couple weeks left.

ive also mined on the digitalcoin one.. i found like 80 some blocks so far on that.

1 tank for 10 s7's in a stainless steel custom tank (leak should not be an issue) . . . when it's hot, it will get thin.

according to my research let's say a 100 lph pump in mineral oil it would be able to only pump about 30 lph.

yes need high flow pump due to viscosity, looking at triple 2000 lph pumps (adjustable) to circulate oil with jets at rad outlet into blades & the other pump will be sucking the hot oil behind the blades into rad's. the 3rd pump will be used to maintain/control flow of fluid from cold to hot or circulate within the tank for the up/down flow or as backup.

2*2000lph = 4000-70% (due to viscosity) = 1200 lph / 60 = approx. 20 lpm but i'll still minus about half of it for losses via rads, hoses etc still getting about 10 lpm flow rate. i could be wrong, someone to chime in would be good.

dual brand new sedan car rad's with fans.

might/might not remove fans, depending on the build but most likely removing them or replacing with the cheaper type of fans to assist in circulating the oil in tank.

looking into either phase cooling to assist in cooling or water chiller or tec but dual rad's with a cool room temp should be ok.

objective is to try to keep temps below 70 deg C, save some power from fans, each miner should be saving approx. 60W or more from fans alone so if it's 20 fans = 600W saved well still have to minus out the pumps & rad fans, but still should be able to save some power, dust free, dramatically reduced noise from 10 s7's per tank.

hunting for a small plastic container or aquarium to test on a single s7 & see how it goes. small test. i'm sure it'll work but in larger scale hmmmmm . . .

Immersion cooling is not for sissies. Its an industrial solution that uses industrial parts and systems for reliability and durability. If you are going that route, I would use a PLC to control and monitor the system. Low coolant level (as in a leak) shutdown or switchover to pump circuit B, monitor for primary pump failure  with auto switch over to the secondary pump, over heating auto shutdown, an messaging/paging/system alarm...etc etc.

Sounds overkill but in reality, what you spend for the miners is not peanuts, with the amount of heat that needs to be carried and disapated, are you really willing to trust some plastic 1/2 garden pump to run 24/7 for months on end... only to fail and have the oil at a stand still which then cooks your miners? All happening with out you knowing it?

Look for hydronic furnace pumps and valves. I would not use a USED automotive radiator, too much conductive water is trapped inside which will cycle through with the oil as neat little blobs which will attach to your miner circuit boards and short out the miners. Remove the AIR COOLING FANS, use pump to circulate the oil within the tank and a separate pump with fail over pump to pump the hot oil to the cooling tower or radiator with fan.

Just my 1/2 cent worth of babble.....

For oil cooling, the 1300watt is too concentrated not to use the fans and/or high flow pump....

4 x S7s = around 18TH++

What is the number 1 coin in your opinion? Peercoin??? I thought that changes day to day?

And, for my next question.

Has anyone dabbled with the S7 firmware and added a "round robin" command so the miner will cycle through the listed URLs in the miner configuration?

Back in the stone age when the S2 was popular, there was some people who had their S2's doing just that by editing the firmware by connecting to the miner via SSH.

Has anyone tried that with the S7?  I'm sure that will be a nifty feature to have when bitcoin is no longer the #1 coin ( actually, BTC has not been the #1 coin for some time now. )

Thanks

Yeah.... I have a few pointed there at the moment, BUT..... there is still a "middle man" in the mix. Someone I don't know, its a very small solo pool, kinda new, etc... with how much scamming there is surrounding cryptocurrencies, I'm very leery with just about everything. The less people with their fingers in the pie the better security and stronger the network.

With PPC being a low enough diff and I have most definitely enough hash-power here, I could make solo mining worth while.... but, I would like to cut out the middle man and mine TRUE SOLO .... using the full wallet/node.

Not only to satisfy my paranoia (puts on his tinfoil has and twiddles his fingers while looking slyly out the window from behind the closes blinds)........  but also to learn... err ... relearn, how to solo mine. I did it years ago with other coins. The wife giving me gray hair and plenty of stress, the whisky and the drugs the doc wants me to take equals : "Duh.... I don't remember sh!t anymore" and the stuff that I find online is soooooo outdated.

So, to be helpful and educational, could someone could post their ppcoin.conf file and their miner settings (URL and port #), what ports to forward at the router --- there seems to be  A LOT of confusion on RPC port and the "network" port posted online IE 9901, 9902, now 9903 and 9904 I've seen mentioned more recently.


Thanks

Good call! Thanks for that! Prime eligible too, this is why I love Amazon!

Here's a good one  http://www.amazon.com/Sanyo-Denki-SAN-Ace-120mm/dp/B00QWB1X3O/ref=pd_sim_147_3/179-3391878-1283731?ie=UTF8&dpID=518LC-uCGVL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1S4FW7HXH6NM82FMC1D8

I wiggled them a bit and unplugged/plugged it back in but I will check again just to be sure... Think I am going to take this one out of the rack and back home to the bench tonight so that I can test it out

Good point, hadn't thought of that. Got any recommendations on replacements? I know they can be had from bitmain but that takes too long. Anybody see an issue using this fan from amazon?

http://www.amazon.com/gp/product/B010EA116C?psc=1&redirect=true&ref_=oh_aui_detailpage_o00_s00

I ran into this problem once and it turned out that one of the fan cables had a spot on it that looked like it had been crushed.  I bent it back and forth a couple times and it was good as new.  Try messing with the fan connections, or try powering the fan with another power source and seeing if it comes on.

Dead fan, the other one is moving it.

Anybody ever run into a situation where you are missing a fan in the GUI? fan is on, though at a really low level and cgminer shows no fan for fan1. Bad fan? Bad board? Thanks in advance!

I have hit with 144gh   12 compac sticks..  but

if you do 1 s-7  you should hit one every 5-6 days

How much hashrate are you talking about for those 3-4 blocks?

Maybe you are right, I shouldn't jump to conclusions. I just saw some setups on youtube where they use 120mm pwm fans in mineral oil tanks for PC builds, I would expect they would over-draw like typical AC fan motors, especially given how high-RPM the S7 fans are.  I guess you could set the fans down to 10% which may help too.

i run Peercoin solo mining every weekend, about 30$ USD per block, sometimes I hit 3-4 blocks per weekend on a good day

stratum+tcp://ppcoin.securepayment.cc:3357   
Username: P-------------------------   
Password: x

You need to insert your peercoin address -- its starts with a capital "P"
Password, just put "x" - and let the pool auto adjust the diff level for you.
Checkout holytransaction.com, its a funky web multi-coin wallet, and it also gives you a Peercoin wallet and address.

I have hit 2 blocks on this site above.