Bitmain Announces the Antminer R4 and APW5 Power Supply, Designed for Silence

[Biodom]

Whatever you do, I firmly advise against buying bitcoin via Coinbase credit or debit card.
Not only they charge 3.99% fee on top of their ask price, but cc will also add a $20 foreign transaction fee to it.
I have no idea why, maybe because bitcoin is kind of foreign currency (and not a commodity) according to cc.
$ 640 purchase had $50 fees or 7.8% total
 Coinbase=Western Union

I assume you didn't use a USD credit card. The foreign exchange fees are charged by credit card companies. If your credit card is not based in USD, it's likely you were incurring an exchange.

no, US cc; CC probably considers bitcoin a foreign currency.

Sorry to hear that. I am in Canada so I always get charged with foreign currency conversion lol.

Try a different card, some do not charge those fees

no, first and last, will use GDAX or Gemini instead.

[1713494446]

1713494446

[chasdabigone]

https://supload.com/rJnvL-dLx
is it normal for the spread in speed to be this big?

[BitcoinNewsMagazine]

The three month warranty is a deal breaker for me I will have to pass. If a year warranty parts and labor was offered no problem.

[alh]

The three month warranty is a deal breaker for me I will have to pass. If a year warranty parts and labor was offered no problem.

Keep hoping........

Bitmain has approximately zero reason to extend the warranty or otherwise improve their terms. Maybe they'll reconsider if/when a batch takes a week to sell out?

[oh337]

I tried searching myself: Who is mining with two R4's powered by a single APW5 PSU inside the United States?  I currently own a single R4 batch #2 and APW5 PSU.  I am interested in purchasing another R4, however I will need an electrician to install a new outlet for me.  I assume a 220V?  I'm curious what all is required.  I assume a C13 power cord to a specific outlet, but unsure of the outlet type?  I'm not sure where to search further.  Thank you in advance.  Ps. My batch #2 R4 quit hashing on one board after several days, but after flashing to a new firmware image from the bitmain website and rebooting, I have not had any issues since.

[HagssFIN]

The three month warranty is a deal breaker for me I will have to pass. If a year warranty parts and labor was offered no problem.

The warranty is now 180 days, which is a half year.

[tbonetony]

The three month warranty is a deal breaker for me I will have to pass. If a year warranty parts and labor was offered no problem.

The warranty is now 180 days, which is a half year.

How can i confirm that? the sales page still reads 90-day.

[GWhisper]

FYI - for those interested, my R4's from batch 6 have shipped.

[VRobb]

The three month warranty is a deal breaker for me I will have to pass. If a year warranty parts and labor was offered no problem.

The warranty is now 180 days, which is a half year.

How can i confirm that? the sales page still reads 90-day.

Right here on the sales page, first line in the warranty section...
https://enshop.bitmain.com/productDetail.htm?pid=00020170113035124055C7pSkE6a066C

[tbonetony]

The three month warranty is a deal breaker for me I will have to pass. If a year warranty parts and labor was offered no problem.

The warranty is now 180 days, which is a half year.

How can i confirm that? the sales page still reads 90-day.

Right here on the sales page, first line in the warranty section...
https://enshop.bitmain.com/productDetail.htm?pid=00020170113035124055C7pSkE6a066C

Thank you. I might have stumbled onto the general sales page then. I was expecting 180-day, and will be disappointed if less otherwise.

[VRobb]

Yeah, one might think that an increased warranty period would mean the company in question believes their equipment is more reliable and hence fewer returns... 

[philipma1957]

with coins shifting upwards I can get the 7.5 model including shipping for 1.111 btc

I purchased 2 coins last week at 800 each.

so 800 x 1.111 =   $888.88

pretty tempting .  Warranty is 180 days.

I think I will buy it.

One thing to consider is this gear will do .1 watts per gh  while the new t9 will do .121 watts per gh.

I put the order in a few minutes ago I have a bit of time to decide.

[Evan]

Anyone have firmware that removes the auto frequency and allows any kind of tuning to freq or voltage?

[NotFuzzyWarm]

Anyone have firmware that removes the auto frequency and allows any kind of tuning to freq or voltage?

Does not exist.
 As has oft been said before: Auto-tune exists so Bitmain can use all the rather variable performing dies (chips) they can get from each wafer produced by TSMC. By being able to have each hash board run  at its 'optimum" (in my book - run reliably at all) Vcore/freq/Temp settings Bitmain is able to mix and match different performing boards to produce advertised specs. Once Auto-tune finds those volts/freq/temp settings per-board that it thinks are best the information is stored in the PIC of each hashboard for faster reboots (methinks).

[NotFuzzyWarm]

And I too picked up another R4 batch 6 today since BTC is over $900 again
Need it to replace the 2 s7's I've been running at home for Winter heating. Just too power hungry at 15-cents/kWh even if they do reduce the gas bill.. At least the 2x early batch s9's in the basement still fully pay for their feed and more.

So far very happy with the batch 4 I picked up earlier which is running silently sitting in my office by my desk.

[philipma1957]

And I took picked up another R4 batch 6 today since BTC is over $900 again
Need it to replace the 2 s7's I've been running at home for Winter heating. Just too power hungry at 15-cents/kWh even if they do reduce the gas bill.. At least the 2x early batch s9's in the basement still fully pay for their feed and more.

So far very happy with the batch 6 I picked up earlier which is now silently sitting in my office.

yeah sitting here thinking I will buy one and sell some gpus'

and I grabbed one

https://blockchain.info/tx/886ff81292fee4bd180bdd9b3e0fef85e846d827a681867f0301e2c7e7c7e28a

[-EOS-]

And I took picked up another R4 batch 6 today since BTC is over $900 again
Need it to replace the 2 s7's I've been running at home for Winter heating. Just too power hungry at 15-cents/kWh even if they do reduce the gas bill.. At least the 2x early batch s9's in the basement still fully pay for their feed and more.

So far very happy with the batch 6 I picked up earlier which is now silently sitting in my office.

yeah sitting here thinking I will buy one and sell some gpus'

and I grabbed one

https://blockchain.info/tx/886ff81292fee4bd180bdd9b3e0fef85e846d827a681867f0301e2c7e7c7e28a

Nice!   Will that be your 2nd R4?

[philipma1957]

And I took picked up another R4 batch 6 today since BTC is over $900 again
Need it to replace the 2 s7's I've been running at home for Winter heating. Just too power hungry at 15-cents/kWh even if they do reduce the gas bill.. At least the 2x early batch s9's in the basement still fully pay for their feed and more.

So far very happy with the batch 6 I picked up earlier which is now silently sitting in my office.

yeah sitting here thinking I will buy one and sell some gpus'

and I grabbed one

https://blockchain.info/tx/886ff81292fee4bd180bdd9b3e0fef85e846d827a681867f0301e2c7e7c7e28a

Nice!   Will that be your 2nd R4?

yeah.  I am going to sell off some gpus.

[VRobb]

Nice!   Will that be your 2nd R4?

yeah.  I am going to sell off some gpus.

Phil, hope your percentage is better than mine... Got 2 R4's, one is hashing on one board so total of only 75% of the hashrate I paid for, and 50% failure rate (for this small sample size tho) 

[philipma1957]

Nice!   Will that be your 2nd R4?

yeah.  I am going to sell off some gpus.

Phil, hope your percentage is better than mine... Got 2 R4's, one is hashing on one board so total of only 75% of the hashrate I paid for, and 50% failure rate (for this small sample size tho) 

Yeah  I would hate for it to break.

I got very lucky with timing the purchase.

I paid 1.091  when I first checked it was 1.21 btc  yesterday's rally to 915 a coin   dropped me to 1.091 ,

Basically  I saved over 80 dollars by good timing.