ASICMINER: Erupter Blades. Review, comments, photos, and discussion! - page 5.

alexuk

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Quote from: eb3full on April 27, 2013, 02:45:44 AM

Quote from: alexuk on April 26, 2013, 09:44:40 AM

http://youtu.be/cvAFBWHGw58

There should be no problem running 10 amps through a wire like that... the problem is probably a short or you had a loose connection.

Nope, the wires were overheating, possibly poor quality copper?

right now, upon touch, they are still warmish... but nothing serious

JimiQ84

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Activity: 406

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Quote from: punin on April 27, 2013, 06:52:39 AM

Quote from: JimiQ84 on April 27, 2013, 05:45:16 AM

How will it work with stratum proxy? You'll point erupter blade to your server (some 192.168.x.x:Y) and on that server you have running program which intercepts everything on port Y and forwards it to btcguild stratum server and vice versa?

LMGTFY

You could have just written my hypothesis was right ;-) I would be much faster for you, me and everyone.

Anyway, new auction is up: https://bitcointalksearch.org/topic/m.1960912

punin

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Quote from: JimiQ84 on April 27, 2013, 05:45:16 AM

How will it work with stratum proxy? You'll point erupter blade to your server (some 192.168.x.x:Y) and on that server you have running program which intercepts everything on port Y and forwards it to btcguild stratum server and vice versa?

LMGTFY

JimiQ84

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Activity: 406

Merit: 250

How will it work with stratum proxy? You'll point erupter blade to your server (some 192.168.x.x:Y) and on that server you have running program which intercepts everything on port Y and forwards it to btcguild stratum server and vice versa?

eb3full

vip

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Quote from: alexuk on April 26, 2013, 09:44:40 AM

http://youtu.be/cvAFBWHGw58

There should be no problem running 10 amps through a wire like that... the problem is probably a short or you had a loose connection.

alexuk

sr. member

Activity: 322

Merit: 250

Friedcat - Thanks again for coming back

Some more observations / issues

* ive seem to of melted a black neutral cable coming from the ATX power supply (this caused the erupter to restart every 2-3 mins) - a fix is to bond two neutrals together and plus into one green negative adapter port - this should be added to the setup / install docs.

Below shows the issue + fix

ASICMINER erupter blade - after 36 hours use - minor power issue

http://youtu.be/cvAFBWHGw58

organofcorti

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Poor impulse control.

Quote from: mrb on April 25, 2013, 08:28:09 PM

Quote from: JimiQ84 on April 25, 2013, 02:32:35 AM

good thing is that difficulty seems to be stagnating (current estimated rise is 5% and we are some 850 blocks from change). So doomsayers prediction of sustained 16% rise didn't come true :-)

You are wrong: current estimated increase is 11% and there is *no* sign of stagnating in sipa's graphs.

In fairness, the average weekly hashrate did not increase last week (ending 21st April). ASICMiner is now certainly fixing that now.

friedcat

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Quote from: alexuk on April 25, 2013, 01:12:06 PM

Thanks for the feedback

im going to be setting up a getwork / stratum proxy tonight

https://github.com/slush0/stratum-mining-proxy

Some other observations:

* ive seen / heard the blade randomly restart (upon restart you can heard a quiet audible clicking sound - which must be the voltage relays), im assuming this is a auto/feature of the blade if a ASIC chip locks up / has issues / or overheat?

Feature suggestions

* the MH/s counter seems to be the average since bootup to now(). Would a 1, 5, 15min mh/s counter be possible? (is there a onboard clock the "microchip" uses at all)?
* how do you perform upgrades of firmware / software?

Thanks!

* The ethernet controller restarts when the network connection times out or it experiences a long time of no accepted shares.

* It is possible, and we will include it into the TODO list of our later versions of firmware.

* You need a Microchip PICKit 2 to program the new firmware in.

mrb

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Quote from: JimiQ84 on April 25, 2013, 02:32:35 AM

good thing is that difficulty seems to be stagnating (current estimated rise is 5% and we are some 850 blocks from change). So doomsayers prediction of sustained 16% rise didn't come true :-)

You are wrong: current estimated increase is 11% and there is *no* sign of stagnating in sipa's graphs.

alexuk

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Activity: 322

Merit: 250

Quote from: friedcat on April 25, 2013, 08:02:12 AM

Quote from: alexuk on April 24, 2013, 10:02:48 AM

Initial thoughts:

* Blade can take up to 10-15mins to get to 10Ghash/s
* After and hour, acceptance rate is around 97%
* drawing about 70-80watts power.

* Yes. But sometimes some of them will be quicker.

* 97%-100% is the normal range

* With downvoltaging to 1.03-1.05V the power consumption might be even under 70watts. But of course this excludes the power loss on the PSU.

Quote from: alexuk on April 24, 2013, 10:02:48 AM

Issues / problems found so far:

* Stratum worker isnt supported? i cant seem to get it to connect to btcguild's stratum server
* DONT wire up with just molex 12v power - use a video card power connector 12V lines - 2x 12V cables. (should be added to a guide)
* You cant tell which wires should go in where for the power adapter - but quickly solved once you flip over the PCB - and you can see +'s and -'s
* Hard to mount / stand up the blade vertically, would be nice for some drill holes along an edge of the PCB so you can fix struts to mount the blade onto something

* Stratum worker is not supported. But the boards could be connected to a stratum mining proxy.

* The one-cable-two-layer output of some 12V power sources are indeed hard to wire up. We also suggest using a PSU with two output cables.

* Yes. The back side of the PCB has a mark of polarity. And you only need to power (any) one + and (any) one -. The additional ones are for nesting.

* Yes. This is what in our mind in our improvement design.

Thanks for the feedback

im going to be setting up a getwork / stratum proxy tonight

https://github.com/slush0/stratum-mining-proxy

Some other observations:

* ive seen / heard the blade randomly restart (upon restart you can heard a quiet audible clicking sound - which must be the voltage relays), im assuming this is a auto/feature of the blade if a ASIC chip locks up / has issues / or overheat? (solved - see new thread for possible issue)

Feature suggestions

* the MH/s counter seems to be the average since bootup to now(). Would a 1, 5, 15min mh/s counter be possible? (is there a onboard clock the "microchip" uses at all)?
* how do you perform upgrades of firmware / software?

Thanks!

friedcat

donator

Activity: 848

Merit: 1005

Quote from: alexuk on April 24, 2013, 10:02:48 AM

Initial thoughts:

* Blade can take up to 10-15mins to get to 10Ghash/s
* After and hour, acceptance rate is around 97%
* drawing about 70-80watts power.

* Yes. But sometimes some of them will be quicker.

* 97%-100% is the normal range

* With downvoltaging to 1.03-1.05V the power consumption might be even under 70watts. But of course this excludes the power loss on the PSU.

Quote from: alexuk on April 24, 2013, 10:02:48 AM

Issues / problems found so far:

* Stratum worker isnt supported? i cant seem to get it to connect to btcguild's stratum server
* DONT wire up with just molex 12v power - use a video card power connector 12V lines - 2x 12V cables. (should be added to a guide)
* You cant tell which wires should go in where for the power adapter - but quickly solved once you flip over the PCB - and you can see +'s and -'s
* Hard to mount / stand up the blade vertically, would be nice for some drill holes along an edge of the PCB so you can fix struts to mount the blade onto something

* Stratum worker is not supported. But the boards could be connected to a stratum mining proxy.

* The one-cable-two-layer output of some 12V power sources are indeed hard to wire up. We also suggest using a PSU with two output cables.

* Yes. The back side of the PCB has a mark of polarity. And you only need to power (any) one + and (any) one -. The additional ones are for nesting.

* Yes. This is what in our mind in our improvement design.

friedcat

donator

Activity: 848

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Quote from: alexuk on April 24, 2013, 10:56:02 AM

Friedcat

The wording on the document is a bit off -

""4. To change the output voltage of each power lane, attach the red stick of the multimeter onto the joint space between the lane’s 2R2 inductor and the two capacitors nearby, and the black stick onto the negative input of the 4 pole connector, then use a small screwdriver to adjust the trimmer.
""

see video here:

http://www.youtube.com/watch?v=s0i4Z_nPtZE&feature=youtu.be

wording should be changed to:

"
4. To change the output voltage of each power lane, attach the red stick of the multimeter onto the lane’s 2R2 inductor metal connector, and the black stick onto the negative input of the 4 pole connector, then use a small screwdriver to adjust the trimmer.
"

What I really meant was to insert the red stick (deeper) to the space between the 2R2 inductor and the capacitors to make the stick more stable to handle by hand. The metal pins on the 2R2 inductor is also OK.

JimiQ84

sr. member

Activity: 406

Merit: 250

good thing is that difficulty seems to be stagnating (current estimated rise is 5% and we are some 850 blocks from change). So doomsayers prediction of sustained 16% rise didn't come true :-)

alexuk

sr. member

Activity: 322

Merit: 250

Quote from: Batteryfire on April 24, 2013, 09:20:25 PM

Got mine this morning! What's the difference between "clock: high" and "clock: low"?

Clock high wont work unless you overvolt the powerlines (as per Friedcat's documentation) - youll gain approx 10% hashing rate. If you do switch the clock to high, and you have not overvolted, the blade will start spitting out errors

Clock low works as per normal, youll get 10gh/s approx

Batteryfire

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Got mine this morning! What's the difference between "clock: high" and "clock: low"?

seleme

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Duelbits.com

Comparing annual BTC roi with usual investment knowing everything about it's volatility is ultimate nonsense.

SebastianJu

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Legendary Escrow Service - Tip Jar in Profile

Quote from: ?? on ??

Quote from: seleme on April 20, 2013, 11:08:00 PM

I'm, pretty sure that auction was clear manipulation to rise Asicminer share price, no sane man would pay 76 btc for 10GH device.

And they run operation spectacularly, shares more than doubled in a day or two.

The amount of manipulation and corruption in bitcoin community these days is staggering.

Yup, and ASICMINER shares are not worth even .4 BTC each.

Because then you would get 100% ROI each year and not only 36% like it is now? (based on dividend of april 24th and a shareprice of 1.12BTC)
If you know a sure investment thats better please tell me.

Even investing in miners now is risky because everytime the hashrate can explode if AM starts deploying in new datacenter, BFL finally manages to ship or all the 57 x 10,000 Avalon chips that are ordered reach their target (https://blockchain.info/address/1FGAftzSTztFSB8LMwsrdCKTyqGY6zr3sU)

OtaconEmmerich

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