Avalon A7 announced

[jbillk]

What is your average temperature? Mine are high at 51 Celcius

Try to keep mine at around 30 deg C, that's when the fans start slowing down. I assume when the fans are at 100%, its running to hot. When fans are less than 100% the unit has the ability to moderate internal temps.

Your corsair power supplys are not very efficient (assuming you have the bronze 85%) allot of power being wasted by heat. 1500w sounds about right.

[PeaMine]

Did anyone get an email from Steve on the 22nd about the A8?
Seems more paper work is needed, asking the same information from earlier?

[jimmy_007vn]

Hi all,
is it normal that the AUC3's light change to red for a second then change to green. It happens like every couple mins or so.

[PeaMine]

Hi all,
is it normal that the AUC3's light change to red for a second then change to green. It happens like every couple mins or so.

I have seen this before, but I don't notice any issues.
Not sure what it means exactly.

[SilentMining]

Hi all,
is it normal that the AUC3's light change to red for a second then change to green. It happens like every couple mins or so.

Normal.  Means everything is working the way it should.

[Steamtyme]

Hi all,
is it normal that the AUC3's light change to red for a second then change to green. It happens like every couple mins or so.

This appears to be normal, mine do the same. It probably has something to do with communications or a reject share, I have no idea.
All I know is that as long as it's a quick flash and then go's back to green you are in the clear.

Here is a link to the LED's and what they mean, I didn't find a reference to the flashing red.

https://canaan.io/question/what-do-the-led-colors-mean-for-the-auc3-avalonminer-741/

[jimmy_007vn]

How come my miner stop and reboot once in a while. I saw the red light in the back of miner. Is it too hot? The temperature shows at 43 degree Celsius. Fan run at 100% 
Also, does it fit with Avalon?
https://www.amazon.com/Antminer-120mm-Duct-Cooling-Shroud/dp/B01M0N30QC

[edrich]

Currently testing voltage offset +1


GHSasc with voltage offset 0

miner 1 7786
miner 2 8113
miner 3 7558

GHSasc with voltage offset +1

miner 1 8058
miner 2 8413
miner 3 7715

Sorry for the dumb question, but whats the difference between GHSasc and GHSav. I assume the latter stands for GH?S average?

Never a dumb question, GHSasc should be the highest the miner has hashed and GHSav is the average it has hashed.

Thank you always wondered what it meant

[pluMmet]

Hi all,
is it normal that the AUC3's light change to red for a second then change to green. It happens like every couple mins or so.

I just know, the information that good

[notabeliever]

My A7 likes -2. as anything above zero you are clocking it higher.

[jimmy_007vn]

Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

[ZedZedNova]

It is stable, averaging 8th per unit. This power supply was recommended by the distributor...

specs on cannon website
"≈ 1150W, +0% ~ +15% (with 93% PSU efficiency @ 25 C)"

so 1322W max at 93% efficiency. My PSU is only 90% efficient. But still a little high. May try switching to 240V with this: https://www.newegg.com/Product/Product.aspx?Item=N82E16812120346

When sizing a power supply that is going to be running 24/7, you would be well served to use a power supply that is only supplying 80% of it's rated capacity. The only exception to that rule might be when you are using datacenter grade power supplies (think HP, Dell, IBM, Delta, etc.), and even then I'd be wary running those at more than 90% of rated capacity. If you are using consumer grade power supplies (think Corsair, EVGA, Rosewill, etc.) 80% is a good target level.

Also, the percent efficiency stated by power supply manufacturers is how good their unit is converting the input power to output power. If you have a 90% efficient power supply that means that if 100 Watts comes into the PSU, then ~90 Watts comes out. The conversion efficiency of any given power supply may vary with input voltage. Consult the data sheet for your power supply for more information.

Running any power supply at 100% or more of it's rated power is asking for trouble. And trouble in this case could be damaged equipment or in the worst case, fires from overworked/overloaded PSUs, connectors, and cables.

[bdog1234]

If someone you knew had six 741’s, power supplies for each and the controllers basically a plug in and go setup how much BTC would be a fair trade for them if the deal was done tomorrow?

I know they can be bought new with PSU for around 1k each but it will be months before you get them.

[jimmy_007vn]

Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

ReUp for answers

[edrich]

If someone you knew had six 741’s, power supplies for each and the controllers basically a plug in and go setup how much BTC would be a fair trade for them if the deal was done tomorrow?

I know they can be bought new with PSU for around 1k each but it will be months before you get them.

I'd consider paying about 8k for it, off course it also depends on your electricity price, as a higher price would mean you need to pay less for the same hardware to break even

[Greenmine]

Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

ReUp for answers

Mine have never restarted automatically, but I’ve not seen them get over 34... usually run 29-31.

[jimmy_007vn]

Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

ReUp for answers

Mine have never restarted automatically, but I’ve not seen them get over 34... usually run 29-31.

Is there anyway we could the miner log to see what the problem caused it restarted. Mine restarted at -2 voltage in every 30 mins average

[edrich]

Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

ReUp for answers

Mine have never restarted automatically, but I’ve not seen them get over 34... usually run 29-31.

Is there anyway we could the miner log to see what the problem caused it restarted. Mine restarted at -2 voltage in every 30 mins average

If you could screenshot the miner Log or copy and paste it to this thread, everyone can have a look at it, and perhaps see your problem

[jimmy_007vn]

Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

ReUp for answers

Mine have never restarted automatically, but I’ve not seen them get over 34... usually run 29-31.

Is there anyway we could the miner log to see what the problem caused it restarted. Mine restarted at -2 voltage in every 30 mins average

If you could screenshot the miner Log or copy and paste it to this thread, everyone can have a look at it, and perhaps see your problem

Please take a look and help me out. Thanks all
https://drive.google.com/file/d/1A60Rp9_DdZcUy5slzB7qYso5dEKBunAE/view?usp=sharing
https://drive.google.com/open?id=1hvpYMmcziMPUOIgMC23PK3m7FqZi7CWG

[edrich]

Is it normal that Avalon 741 restart more often? Mine Avalon restart even when it's at 37 degree Celsius. Thanks
https://drive.google.com/open?id=1X2giHh53t9MwcLljkS2hutdkEeBdH4tG

ReUp for answers

Mine have never restarted automatically, but I’ve not seen them get over 34... usually run 29-31.

Is there anyway we could the miner log to see what the problem caused it restarted. Mine restarted at -2 voltage in every 30 mins average

If you could screenshot the miner Log or copy and paste it to this thread, everyone can have a look at it, and perhaps see your problem

Please take a look and help me out. Thanks all
https://drive.google.com/file/d/1A60Rp9_DdZcUy5slzB7qYso5dEKBunAE/view?usp=sharing
https://drive.google.com/open?id=1hvpYMmcziMPUOIgMC23PK3m7FqZi7CWG

Having compared yours with mine, the only big difference I noticed is that your's ECHU is [16 0 0 0] where mine is [0 0 0 0]. Tried searching what that means, but couldn't find anything, maybe some other member can clarify. Also have you tried running it with a voltage offset of 0? Just curious what it would give then.