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Author Topic: L3+/L3++ voltage tuning script  (Read 3411 times)
sergw
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November 10, 2018, 10:10:55 PM
 #81

after ~20 mins, it is aborted:

Skipped chain 4, max overvolt reached, tune manually if you dare!!
= Running since: 00:41.21, now sleeping for 40.3s =
| 10.10.11.48  [450] |  49  |  45  |  45  |  46  |
+ Current voltages   + 0x85 + 0xc2 + 0xad + 0x50 +
|Errors/min (5min)   | 0.20 | 0.40 | 0.00 | 6.20 | 1 2 0 31 |
|Errors/min (10min)  | 0.30 | 0.30 | 0.10 | 5.30 | 3 3 1 53 |
|Errors/min (15min)  | 0.33 | 0.33 | 0.13 | 5.00 | 5 5 2 75 |
|Errors/min (all)    | 0.17 | 0.14 | 0.05 | 4.66 | 7 6 2 196 |
= Running since: 00:42.11, now sleeping for 49.9s =
Invalid boards read, aborted!
9 0
psycodad (OP)
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November 11, 2018, 11:35:50 AM
 #82

after ~20 mins, it is aborted:

Skipped chain 4, max overvolt reached, tune manually if you dare!!
= Running since: 00:41.21, now sleeping for 40.3s =
| 10.10.11.48  [450] |  49  |  45  |  45  |  46  |
+ Current voltages   + 0x85 + 0xc2 + 0xad + 0x50 +
|Errors/min (5min)   | 0.20 | 0.40 | 0.00 | 6.20 | 1 2 0 31 |
|Errors/min (10min)  | 0.30 | 0.30 | 0.10 | 5.30 | 3 3 1 53 |
|Errors/min (15min)  | 0.33 | 0.33 | 0.13 | 5.00 | 5 5 2 75 |
|Errors/min (all)    | 0.17 | 0.14 | 0.05 | 4.66 | 7 6 2 196 |
= Running since: 00:42.11, now sleeping for 49.9s =
Invalid boards read, aborted!
9 0


Most probably your chain 4 did not report back all chips and therefor the script aborts. Your chain 4 looks like it emits a lot of errors, it might be possible to get that down by increasing voltage further (a setting below 0x50) but from past experience I doubt that.

First check your miners GUI if chain 4 has no crosses. If it has, try rebooting the miner and see if all chips come back to work. If not, try to shut it down and restart it after letting it cool down for 15-20mins.

From there on, I'd recommend to hand-tune chain 4 by ssh'ing to your L3 and running /config/sv manually.
Otherwise you can change the script to use higher voltage by changing line 73 from 0x50 to a lower number (meaning to allow the script to try higher voltages).

Again, I would not recommend this, I have my doubts you'd get much less errors on chain 4 with even higher voltages @450MHz. Try to tune the other three by adding -s 4 to skip chain 4 in tuning and try the best value for chain 4 manually.

HTH

sergw
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November 12, 2018, 10:35:53 AM
 #83

psycodad, thanks for that, i will try.
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November 24, 2018, 09:45:57 AM
 #84

psycodad, you have been quoted in the following messages:

 
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sergw
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November 24, 2018, 09:30:43 PM
 #85

psycodad, one more question: does that tuning survive after reboot? or i need to redo the tuning every time after reboot?
psycodad (OP)
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November 24, 2018, 10:43:05 PM
 #86

psycodad, one more question: does that tuning survive after reboot? or i need to redo the tuning every time after reboot?

The voltage settings are stored in the EEPROM of the PIC controllers for the blades and are persistent over reboots and power-cycles. That is, even if you re-flash firmware the settings *should* persist (didn't have to try that yet).
Though when you change frequencies (i.e. to adapt to higher or lower ambient temperatures), you should retune again.

dstsb
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April 20, 2019, 09:11:37 PM
 #87

I came across similar voltage tuner: https://github.com/gotaproblem/L3-AutoTune

Any idea it is working same way?

All credit to cryptodad.

Can someone check advise if it is legit? And can someone advise how I can decode these files to see what are they going to do before I try with the miner?

Thank you
joseph32
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April 20, 2019, 10:06:26 PM
 #88

I came across similar voltage tuner: https://github.com/gotaproblem/L3-AutoTune

Any idea it is working same way?

All credit to cryptodad.

Can someone check advise if it is legit? And can someone advise how I can decode these files to see what are they going to do before I try with the miner?

Thank you

My advice too you: Do it manually. Its really easy and you have the full control over everything. Put in a high number and check the HW errors a hour later. If just a few HW, drop one more step down until you see too many of them. Then go back one step and done.
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