Author

Topic: Low hashrate Avalon 851 (Read 393 times)

newbie
Activity: 9
Merit: 2
March 15, 2019, 01:36:42 PM
#15
Thank you very much. My problem has been resolved Kiss Kiss Kiss Kiss
legendary
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
March 15, 2019, 02:24:03 AM
#14
Both
newbie
Activity: 9
Merit: 2
March 14, 2019, 07:25:05 AM
#13
Yes

thanks. downgrade firmware Controller and Machine both?
legendary
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
March 14, 2019, 01:07:38 AM
#12
Yes
newbie
Activity: 9
Merit: 2
March 13, 2019, 05:31:36 PM
#11
Dude,
You have the new low power firmware installed.

That's why your hash rate is lower than stock A851.

Please read this carefully to fully understand what I mean:
https://canaan.io/avalonminer-8-series-high-efficiency-firmware-released/

thanks for your response
What should I do to solve the problem? Revert to older version?
legendary
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
March 13, 2019, 03:27:25 PM
#10
Dude,
You have the new low power firmware installed.

That's why your hash rate is lower than stock A851.

Please read this carefully to fully understand what I mean:
https://canaan.io/avalonminer-8-series-high-efficiency-firmware-released/
newbie
Activity: 9
Merit: 2
March 13, 2019, 07:08:42 AM
#9
Hello
CGMiner API log See Screenshot
So the problem is the  PSU?
Bitmain Antminer APW7 1800W Power Supply For Avalon 851 Is it right?

https://serving.photos.photobox.com/25262526a3919324b252562bad52780b59eebe078dcb057bcb31cef268084449a0d74959.jpg

that psu is no good it does not have enough power it is 1600 watts not 1800 watts.

set the miner to 0 not +1

show me a 2 hour hash rate

Tell us your native language.

Sad My Psu it is 1600w?
0 or +1 Average Hashrate 24h 9.5TH/S.
legendary
Activity: 4172
Merit: 8075
'The right to privacy matters'
March 12, 2019, 04:26:31 PM
#8
that psu is no good it does not have enough power it is 1600 watts not 1800 watts.

set the miner to 0 not +1

show me a 2 hour hash rate

Tell us your native language.
legendary
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
March 12, 2019, 02:42:24 PM
#7
I suspect that there might be a language barrier in this case
legendary
Activity: 3612
Merit: 2506
Evil beware: We have waffles!
March 12, 2019, 11:54:37 AM
#6
The Avalons report what your PSU is feeding them. Check  Status > CGMiner API log. Near the top you will see:

Code:
[Firmware Version] => Avalon Firmware - 20180305
    luci: 62d814c
    cgminer: b5b497e
    cgminer-packages: 960e108
Reply was 'STATUS=S,When=1552405632,Code=70,Msg=CGMiner stats,Description=cgminer 4.10.0|STATS=0,ID=AV80,Elapsed=7644723,Calls=0,Wait=0.000000,Max=0.000000,Min=99999999.000000,MM ID1=Ver[8411802-1e73b80]
    DNA[0130a561fa8de79c]
    Elapsed[7644726]
    MW[2363602990 2363604773 2363605616 2363606435]
    LW[9454419814]
    MH[4221 4182 4394 4095]
    HW[16892]
    Temp[43]
    TMax[87]
    Fan[5760]
    FanR[100%]
    Vi[1203 1203 1212 1212]
    Vo[3773 3798 3825 3827]
    GHSmm[13748.50]
    WU[190936.23]
    Freq[768.59]
    PG[15]

The line Vi tells you what the PSU is feeding to each of the PMU's (Power Management Units) and PG is a generic Power quality value.
In my above example the PSU is feeding 12.03, 12.03, 12.12 and 12.12v to each of the PMU's and PG is the typical value of 15 (very good). If PG goes below 13 or so you will have problems with boards dropping out.

Using the Code tag (looks like # ) post your API log here.
legendary
Activity: 4172
Merit: 8075
'The right to privacy matters'
March 11, 2019, 04:36:04 PM
#4
I looked at your screen shots  they are for 5 minutes

and you overclocked to +1

so  try showing a 1 hour screenshot not a 5 minute screen shot
and try it with  no over clock

5 minutes is pretty much worthless for telling true hash rate.
and the 851 is power mad hungry on over clock
so the 1800 watt psu could be too weak do no over clock please.
legendary
Activity: 3612
Merit: 2506
Evil beware: We have waffles!
March 11, 2019, 04:16:37 PM
#3
And also post in the Avalon Support thread https://bitcointalksearch.org/topic/troubleshooting-and-repair-guide-for-avalonminer-models-721-741-761-821-841-3224256 along with reading that thread - at least the 1st post - as you may find your answer already there.

Oh, and when posting the API log please be sure to use the CODE tag (looks like # ) so the log does not become a wall of text....
legendary
Activity: 2436
Merit: 1706
Electrical engineer. Mining since 2014.
March 11, 2019, 04:00:47 PM
#2
You might want to post the Cgminer API log for starters!!
newbie
Activity: 9
Merit: 2
March 11, 2019, 03:56:17 PM
#1
Hello
I Have trouble with this Asic , its Hashrate is very low..
PSU 1800W

Please see the screenshot

https://i.imgur.com/ssypQxh.jpg
https://i.imgur.com/fE4zwAG.jpg
https://i.imgur.com/Q7Un47H.jpg
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