Where to purchase a couple Antminer S9's - page 2.

leowonderful

legendary

Activity: 1624

Merit: 1130

Bitcoin FTW!

Quote from: goldencookie on November 20, 2016, 08:34:36 AM

Help, I am a computer guy. I see a lot of talk about EVGA and power supplies but no one mentions UPS.
UPS is not required or not desired or?

UPS' can be used if you have power outages often or have an unreliable power source, but using them upfront isn't a good idea. They also don't have nearly as good of a lifetime; you're better off just buying a PSU from EVGA or other reliable brands. Don't buy the cheapest you can find; try aiming for 90% efficiency from a good brand.

goldencookie

newbie

Activity: 13

Merit: 0

Help, I am a computer guy. I see a lot of talk about EVGA and power supplies but no one mentions UPS.
UPS is not required or not desired or?

takagari

legendary

Activity: 1050

Merit: 1000

Hell I replaced my basement space heater with 3 S3's on an EVGA, that I run year round to keep the humidity in check and chill out of the floor.
I almost bought one of them home miners they just launched, but price was to high.

I bought the 14th S9, so I'll look at throttling it down over summer a bit to keep noise better and just do the same thing with my basement

P4ndoraBox

sr. member

Activity: 711

Merit: 250

Yup, living in canada here too.

Perfect for electricity cost, but still loudly. One can be ok, but more than that...Gosh...Glad I had a garage for my jet engine S4.

The S5 was tolerable though.

takagari

legendary

Activity: 1050

Merit: 1000

Electricity is not ALWAYS the big issue some thing.

In Canada where I live, temps hit -40 at times in the winter. and we have electric heat, or at least I do..
My furnace room is large and well ventilated, So I run my Miners in the winter, near my furnace, and pipe the heat into the return.

I essentially heat my home with the miners.
The Efficiency is hard to measure. but I like to think they burn near the same power to produce the same heat.
So I'm effectively running the miners for free.
At least in the cold months

P4ndoraBox

sr. member

Activity: 711

Merit: 250

If I may suggest ( Had a sr.members account so dont mind my newbie status )

please think about the following ;

Noise : If you are alone in your house and have a dedicated room for it, it could be a solution. Don't expect to run your miner in the living room, or worst, in the bedroom. Not only your wife will leave you, but you won't make ROI in a loooong time.

Electricity cost : In which country are you living ? Do you know that if you don't have a good deal on electricity you'll get to spend more than you'll actually mine ?

If you are able to live with those 2 main points, then it should be ok. Otherwise, if either one of them will cause problems, you would be best to buy Bitcoins directly and hold instead.

I'll repeat again...You MUST have a garage or a separate room for the noise, you are warned.

takagari

legendary

Activity: 1050

Merit: 1000

Any psu will work, EVGA's are popular
As for the avalon, the ROI on those is even harder to get then that of the S9...

goldencookie

newbie

Activity: 13

Merit: 0

Excellent information here, thanks, and especially for Avalon. I am thinking to start with 2 Avalon 721's.
What power supplies are folk using? I don't see any listed on their site.

takagari

legendary

Activity: 1050

Merit: 1000

Bitmaintech.com

As for the heat, counteracting the heat is not the answer, ventilation is key, so having cool air go into the room is fine, but you need to expel air as well, or you're going to double your electricity cost's by running a heater and air conditioner at the same time.

Also I agree, start with the S7, the use the same power, so once they are running and you have it figured out, upgrading to an S9 isn't a big deal.
And initial startup cost's are not to big.

Be sure you have access to dedicated circuits, and preferably 208+Volts, not just 120.

As for the horror stories, I've yet to see a company that hasn't had SOME form of complaints posted, as far as bitmain goes, they are one of the most reliable.

NotFuzzyWarm

legendary

Activity: 3822

Merit: 2703

Evil beware: We have waffles!

Bitmain so far is the only Bitcoin miner maker that sells to the Public on a regular basis. Once again they are sold out.
Avalon *is* taking orders and should start shipping their miners Nov 21st. In the past they have been trustworthy.
There really are no other reputable Bitcoin miner makers -- but there ARE a lot of scammers so beware!

1st rule of mining: NEVER spend money you cannot afford to lose. If you have spare cash to spend then think of it like a vacation at a casino. Maybe you will make money, maybe not.

2nd: ONLY buy new miners direct from the manufacturer or their authorized distributor as-listed on the companies website. It is the only way there will be any Warranty on new equipment. It is also the 1st step in avoiding scams.
https://Bitmaintech.com for s9's
https://canaan.io for Avalon miners

3rd: If starting out 'to learn' then look for a used s7. Much more manageable in terms of noise and reliability. Also a helluva lot cheaper that the s9 is.

On the heat: Plug in and run 2x 1,250w heaters in the room for a day. If it stays a comfortable temp you would be fine.

goldencookie

newbie

Activity: 13

Merit: 0

Hi all,

Forgive my newbie post. I want to learn about mining so I should order a couple Antminer S9's.
I have seen a few horror story posts. Some related to the Bitmain company itself and so forth.
Please advise who / which companies can be trusted to purchase this equipment.

Also, can 2 Antminer S9's run in a small air conditioned room without heat issues or must special
fans be setup?

Thanks,
~g

Topic: Where to purchase a couple Antminer S9's - page 2. (Read 5026 times)