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Author Topic: R4 Arrived Photos thought etc  (Read 2488 times)
bilabonic
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December 08, 2016, 12:16:39 PM
 #21

How long will the fan last on these, vertical tower fans don't last very long...Are replacements cheap ?

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philipma1957
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December 08, 2016, 03:27:01 PM
 #22

How long will the fan last on these, vertical tower fans don't last very long...Are replacements cheap ?

no one knows

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December 08, 2016, 05:49:28 PM
 #23

sound levels

from about four feet. 

this is not as quiet as a sidehack modded s7-ln
this is not as quiet as an avalon 4.1 that is downvolted and under clocked.

In my friends office it is fine
It is definitely quieter then the avalon 721.



Thanks, useful sound classification. I like my S7-LN but I wish it was filled with BM1387 chips  Tongue

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December 08, 2016, 08:02:37 PM
 #24

The sound must be highly dependent upon environment.  In my house, which is 74 degrees, it reads 51db from 1 foot away.  Nearly silent.

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December 08, 2016, 08:07:11 PM
 #25

The sound must be highly dependent upon environment.  In my house, which is 74 degrees, it reads 51db from 1 foot away.  Nearly silent.

Same here.  The fan I have on in the room is louder.
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December 08, 2016, 08:12:04 PM
 #26

I'm more than pleased with how quiet it is.  In fact I can overlook the lack of fan and clock control since all I ever used it for was for noise reduction. 

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December 08, 2016, 09:53:06 PM
 #27

The sound must be highly dependent upon environment.  In my house, which is 74 degrees, it reads 51db from 1 foot away.  Nearly silent.

yes to follow up  I pulled it from my home at 80f

put it in my friends office at 72f and boom 53db.

he is happy with it  as am I.

Next week I will drop into his office do some photos and meter readings.


Also pitch is good  not a nasty whistle like the s-5 s-7 s-9
 my kwatt reads 821 watts 120 volt using a rosewood quark psu

my pool reading just under  8,000 gh


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December 08, 2016, 10:12:55 PM
 #28

Quote
Also pitch is good  not a nasty whistle like the s-5 s-7 s-9
That is a direct result of using the longitudinal blower vs fans. The blower produces a linear stream of airflow vs the mass of highly turbulent air a fan makes. Smooth airflow hitting the heat sinks means minimal noise from turbulence and also more to the point of 'pitch', with no rotating blades moving in a circle very close to the heatsink fins there is no possibility of the siren effect. Should be just a soft 'whoosh'.

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Exoskeleton
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December 08, 2016, 11:08:03 PM
 #29

I really like the lower pitched sound as well. These units turned out to be exactly what I needed for an office. Given that we have 3 on free power now I guess I can expect to ROI under a year for sure. That is really my only goal with these. I hope to end up ahead by 50%-100% within 2 years.
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December 09, 2016, 07:17:38 PM
 #30

On my R4 on Chain 8 I see a chip 2  temp between 95 to 115. On Chain 7  chip 2 remains steady at 67. What gives with this fluctuation.
philipma1957
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December 09, 2016, 10:40:29 PM
 #31

On my R4 on Chain 8 I see a chip 2  temp between 95 to 115. On Chain 7  chip 2 remains steady at 67. What gives with this fluctuation.

my guess is the bottom board is cooler and the top board is warmer.

hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs
-----------------------------------------------------
hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs
hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs
-----------------------------------------------------
hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs


this is the lay out and air blows right out of the radiators .

some of the heat from the bottom board must rise into the top board

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December 09, 2016, 10:51:28 PM
 #32

I get the same wide difference in chip temps on one board, and more closely aligned temps on the other board, but I'm standing my R4 up vertically!  I think it has more to do with where/how well the TC is attached to the chip/board/whatever...  Tongue

I don't believe in superstition because it's bad luck
In Hotels, I prefer the 13thF1oor6CAwyzyxXPNnRvu3nhhYeqZdc
These aren't the Droids you're looking for: S5 & S7 (Sold), R4B2, R4B4 (RIP),S9-13.5 & S9r-11.5
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December 10, 2016, 07:44:57 AM
 #33

On my R4 on Chain 8 I see a chip 2  temp between 95 to 115. On Chain 7  chip 2 remains steady at 67. What gives with this fluctuation.

my guess is the bottom board is cooler and the top board is warmer.

hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs
-----------------------------------------------------
hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs
hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs
-----------------------------------------------------
hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs hs


this is the lay out and air blows right out of the radiators .

some of the heat from the bottom board must rise into the top board

While I don't own an R4, you might be able to "level out" the temps by standing the R4 in it's side, assuming that's possible. I did something similar with an SP20, though it was a more square shape at the end  end and easy to do.
philipma1957
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December 10, 2016, 01:03:18 PM
 #34

Thanks for sharing pictures.
Its bigger than I expected.


I know its cost you a small fortune to buy, but how difficult do you think it would be to improve the cooling, fans, thermal paste?
As I am fairly good with a screwdriver and soldering iron I would of probably had it in bits by now.

Its kind of a compulsion I have.


I think the exhaust could add pull fans easy peasy.

there is even a spare fan jack




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December 11, 2016, 12:30:22 AM
 #35

I  have to admit I think the R4 is one of the most interesting miners available. I am curious if R4 owners have seen the issues that the S9  has. I wanted  to jump  on the batch 2, but without some more data on reliability I decided to wait.  I would love to get your feedback on the R4. I am very tempted if another batch is released to pickup one or two to give them a try.  I think the idea of mounting  them on the side makes sense. Has anyone  rigged up a mount yet  for side mounting these? Thanks for sharing your R4 with us!  Grin
philipma1957
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December 11, 2016, 03:00:52 AM
 #36

Less than 1kw.
Still makes me think how far asics have come.
The chassis means business.
Id love to be able to hear its noise output.
Any chance of a youtube clip?

I could do a Facebook clip.

but it is in my friends office.  which means thurs night would be the soonest I can do it.

I could bring the sound meter and my camera.

This is a good piece of gear for an office.

Power and internet are pretty stable 80 to 100 days at a time with no dropouts.

temps are never lower then 60f or higher then 85f

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
hhumaidan
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December 12, 2016, 07:35:19 PM
 #37

So Phill, A7 vs R4.


How do they fare against each other in terms of reliability and heat?
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December 13, 2016, 12:43:01 AM
 #38

I  have to admit I think the R4 is one of the most interesting miners available. I am curious if R4 owners have seen the issues that the S9  has. I wanted  to jump  on the batch 2, but without some more data on reliability I decided to wait.  I would love to get your feedback on the R4. I am very tempted if another batch is released to pickup one or two to give them a try.  I think the idea of mounting  them on the side makes sense. Has anyone  rigged up a mount yet  for side mounting these? Thanks for sharing your R4 with us!  Grin
My 1 concern with mounting them on their side is the fan bearings.
Odds are they are simple sleeve bearings made for the axle being horizontal meaning minimal shaft support if tipped on its side. Pretty safe bet what support there is is not a ball bearing which would make things more forgiving... Anyone have a closeup pic of the bearing area?

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
VRobb
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December 13, 2016, 01:24:40 AM
 #39

I got mine standing on end...  I'll see if I can't get a good look at the bearings and report back.  Seems ok so far!

I don't believe in superstition because it's bad luck
In Hotels, I prefer the 13thF1oor6CAwyzyxXPNnRvu3nhhYeqZdc
These aren't the Droids you're looking for: S5 & S7 (Sold), R4B2, R4B4 (RIP),S9-13.5 & S9r-11.5
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December 13, 2016, 02:11:25 AM
 #40

I did a youtube video and some pictures - see my post here:

https://blockoperations.com/antminer-r4-unboxing-setup-video-pictures/

youtube only:
https://www.youtube.com/watch?v=Tv8FpDEYlVU
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