Topic: Bitmain Antminer R4 - page 2. (Read 11443 times)

Thank you so much for taking the time to respond to my post. It really clarified everything and I'm having an electrician over in the morning! I will see if it's possible to do that conversion - Do you really think it's worth it in efficiency for simply 1 miner? If I am unable to make the upgrade from 110v to 220v, how should I proceed (is it ok to run it in your opinion?). I am certainly going to look into a whole house surge protector as well. I was initially going to do grounding on just the outlets upstairs, but I assume that wouldn't even be necessary with a whole-house one? But would 3-to-2 prong adapters really be OK to use with all of this mining equipment?

The price at the "testing site" which they accidentally leaked out to public was 1000USD but now with the actual release the price for the Antminer R4 is 1395USD.

Did they already increase the price from 100 USD to 1300 USD?

 2 sides, not all - but that's STILL an odd design decision that one would think would reduce the fan efficiency.

 There is NO reason the R4 can't be run on a 110 circuit - it's actually a TON better for that than the existing S9 units that force you to push a common 15 Amp 110 circuit VERY hard. 8 amps or so draw is VERY easy on a 15 amp circuit, and 2 would be practical (using seperate OUTLETS unless the outlet itself is one of the less-common NEMA 5-20 type) on a single 20 amp circuit.


 One of the pages linked somewhere cited "515mm" width - that's a bit over 20" and will NOT fit in a standard rackmount space.
 It's a good fit for my homebuilt "made to fit A2 Terminator" wood shelving though - almost identical width, and a bit lower in height.
 8-)

Thank you for the explanation. I actually wanted to add in that 2 pole breaker a while back but then I realized I had too many other appliances would not work at 220v. I live in a small condo so choices are very limited. If I move into a big house then I would definitely devote the entire basement to build my own farm lol.

the problem is that each manufacturer makes their own mining chip. if there was something like Intel/AMD duopoly and anyone could order from some company (ies) like this, then final product (miners) would have quickly commoditized resulting in lower prices eventually. the problem is that this market is too small (so far) for a serious player.

And  gpu mining looks better mostly due to sales and warranty tactics of btc ASIC builders.

Then it is NOT a home item, period.
Mass consumers are not like us, who just turn another cheek and wait for it.

sadly :

NO way it's gonna be a 1 year warranty
YES the price will be HIGH & NO the price will NOT quickly drop
A7 price or Avalon prices are ALWAYS a tad more than BMT prices sadly

in other words be prepared for a ROI target of a minimum of 1 year or MORE

so sad but very true EXCLUDING downtimes, warranty claims & the other usual stuffs.

All solid points, but let's see price and WARRANTY. A consumer item should have warranty of 1 year minimum.
Prediction: they will price it too high, but will relatively quickly drop it once A7 shows up.
In fact, perhaps A7 is also consumer oriented and they are trying to preempt it. We shall see.

new fan design seems to be more efficient & quiter, kudos to that but here are my thoughts on the R4

1. there ain't gonna be any easy find for the FAN if it breaks down = DOWNTIME !
2. the heatsinks are in a 90 degree orientation so you can only run R4 blades
3. this thing looks WIDE, hence taking up rack space & NON stack-able but imo with a little creativity & simple mod/add on should solve that problem
4. still the same 3 x PCIE jacks for each blade but the orientation does NOT allow for wiring management say if you purchase 2 x R4 with the new PSU but on the new PSU i think I see ONLY 7 PCIE & not 14 of them, well I could be wrong though & it will be most likely to be 18 AWG sizes.

let's see when it launches & my guess was REALLY close with BMT pricing it around 1.7 btc ish range, the PSU is nice for newbies but for the hardcore diy'ers out there, there are alot more options & much cheaper PSU with the same power or more.

will the S9 prices drop after the R4 launch, i'd say NO !

atm, it's difficult for me to purchase the R4 atm UNLESS there are readily available parts with reasonable pricing or any other aftermarkets. The ONLY PROS on the R4 would be most likely cooler chips & quieter miner but i'd still go for the 11.85 ths S9 as i think the EOL will last longer than the R4 & the pricing per ths should be more or less the same & the S9 have some available aftermarket parts readily available.

just my 2 cents.

yeah, 9am mountain on Monday, but they never actually stick to the schedule.

Ugh,  23:00 (GMT+8)  ... So that's what? 07:00 GMT? Or is it 15:00 GMT? Which then converts to what? Is that 7 AM Pacific time? But no, I need to add or subtract an hour for daylight savings¿ And which day? Aren't they a day ahead? So confused

Best guess is these will go on sale on Monday morning at 9 AM mountain time.

Does that sound right?

https://www.youtube.com/watch?v=XMgwZDtR4tw

hopefully this is on topic on how to convert for an R4 for use with a NEW 220v outlet above

IF you just want to convert a 110v outlet..make sure you have 2 spaces (you take out the single 110v breaker and make sure you have one more space in panel) you then put
in a 220v double pole breaker (ask home depot guy bring old 110v single slot breaker to get the right model) and put your preferred type of 220v plug (you can also ask home
depot guy his preference) find a proper psu cord for that wall outlet to your switching PSU (the new ones switch from 110 to 220 auto mode sense I assume this bitmain one
does as well) ...and again you simply put black tape on the neutral both ends (making it black a power lead of 110v) and use the current black (other 110v) and the ground
at both ends and the outlet...

and you should be good....any other questions PM me...we will wrap it up off this thread I assume we are still on topic due to others may also want 220v instead of 110v
for these units and the above is an easy fix.

You also have to make sure that the ONLY thing on this line you are gonna convert ONLY has the ONE outlet on  it....or ALL the outlets on  this circuit (lights won't work for this) will
have to be 220v outlet change..this is for a conversion of an existing 110v line to 220v outlet.

again running a single line  NEW from panel to the outlet is specific to the link above and is what I would recommend even if you have to fish some wire around the house.

anyway ....if you are gonna run this R4 beast imho 220v is the ONLY way to go....no way do you want it to run on 110v even if it works ..others can get into the detail
on why that is so on here or to you via pm. Also having an electrician do it is probably the wise choice on either a new line or a conversion....BTC is gonna go to 1000 usd
after you get your R4 right So you can afford it! After you have this done or do it probably not a bad idea to have it and the house inspected and signed off on all this
electrical stuff anyway....they also have whole house surge protectors ..(which I should probably do) ...anyway whatever way you go you want these R4's at 220v imho.

Can you share a link to the youtube video? I found a bunch but they didn't seem to show details...

make a 110v line into 220v is my advice ...check out youtube it is easy to do with just a 220 plug at one end and the 220 double breaker at the other. It involves no wire pulls
you just tape the neutral with black tape at both ends and use it with the standard black for the 220 breaker....and ground...no neutral reguired.

Anyway youtube videos should clear up such a switch on how to make a new circuit (with 20 amp 12-2 wire) and or mod an old one to 220v.

Others on here can offer other advice on specific miner setup or further links to my stuff above

reason for 220v is more efficient

I have a few questions...I'm considering getting the R4 and it would be my first home rig. Are all the cables included or what else is needed beside the PSU and R4 itself? Will any standard 110v jack really support it?

All of these were new users in one day
Date Registered : 2014-11-14 for all thiese acounts
All  are Bitmain employees

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BITMAIN_Kiddy https://bitcointalksearch.org/user/bitmainkiddy-394836
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Date Registered : 2015-05-05
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Date Registered : 2015-09-16
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Do you have proof that bitmain has alt accounts? If you do, you should post them here.

 Probably designed specifically to power a pair of R4 units - 1 PCI-E per hashboard, 6 hashboards + controller seems likely.


 While the ORDER page links seem to have been dropped or changed (perhaps posted in error), the PRODUCT link to the "comming August 29" page IS still up and active. Looks pretty "official" to me.