AvalonMiner 1166 - fan drops to 25% then miner slowly shuts down...

[jdcpe17]

I have a couple of Avalon 1166 - 81T miners. they all work ok, except one, after about 32 minutes (and regularly at about 30-32 minutes) the fans will drop to 25% speed, then the miner starts to get too hot and it stair steps down and eventually turns off. It then turns itself back on and starts the cycle over again... running fine, then after about 30 minutes, the fans drop to 25% and it stair steps slower then shutsoff.

the fan drop to 25% is immediate.

the firmware version is the same as the others I have. all identical.

this is a new unit (to me and as far as I can tell it is not used), as are the others I have.

the ambient environment is about 31C. the miners all show about 33C-35C. When the problematic miner shuts down, it is showing a temp of 37C (I believe because fan speed dropped...)

Any ideas?

Thanks

 

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[BitMaxz]

It would be better if you could share your API logs here and don't forget to use the # button and put the logs inside then post it here.

I would like to know if the web interface is black that looks the same as this


If yes then try to access the advanced version to see the other features and I think you can adjust the fan speed there to run it at a fixed speed.

Follow this guide for troubleshooting below, not an exact model but it might still help you to troubleshoot your issue.

- https://bitcointalk.org/index.php?topic=3224256

[jdcpe17]

thanks for the help. i dont see the same screen you are showing for anything advanced... here is the log:

Code:

{'STATUS':[{'STATUS':'S','When':0,'Code':11,'Msg':'Summary','Description':'cgminer 4.11.1'}],'SUMMARY':[{'Elapsed':1235,'MHS av':57259138.55,'MHS 30s':58970297.20,'MHS 1m':60251122.79,'MHS 5m':59192447.13,'MHS 15m':43746888.37,'Found Blocks':0,'Getworks':47,'Accepted':124,'Rejected':0,'Hardware Errors':14,'Utility':6.02,'Discarded':3612343,'Stale':0,'Get Failures':0,'Local Work':32189,'Remote Failures':0,'Network Blocks':1,'Total MH':70720586131.0000,'Work Utility':799992.76,'Difficulty Accepted':14778368.00000000,'Difficulty Rejected':0.00000000,'Difficulty Stale':0.00000000,'Best Share':3674871,'Device Hardware%':0.0001,'Device Rejected%':0.0000,'Pool Rejected%':0.0000,'Pool Stale%':0.0000,'Last getwork':0}
{'STATUS':[{'STATUS':'S','When':0,'Code':70,'Msg':'CGMiner stats','Description':'cgminer 4.11.1'}],'STATS':[{'STATS':0,'ID':'AVA100','Elapsed':1236,'Calls':0,'Wait':0.000000,'Max':0.000000,'Min':99999999.000000,'MM ID0':'Ver[1166Pro-81-21042001_4ec6bb0_61407fa] DNA[020100007cdfbd14] MEMFREE[1420096.0] NETFAIL[0 0 0 0 0 0 0 0] SYSTEMSTATU[Work: In Work, Hash Board: 3 ] Elapsed[1236] BOOTBY[0x12.00000000] LW[1196262] MH[6 5 3] HW[14] DH[7.295%] Temp[33] TMax[74] TAvg[65] Fan1[5347] Fan2[5344] Fan3[5387] Fan4[5392] FanR[82%] Vo[342] PS[0 1210 1368 223 3064 1368] PLL0[4954 13 6 8947] PLL1[7455 11 6 6448] PLL2[10294 9 2 3615] GHSspd[62310.73] DHspd[7.295%] GHSmm[67361.52] GHSavg[57212.58] WU[799250.48] Freq[403.27] Led[0] MGHS[20514.13 18870.44 17828.01] MTmax[74 71 73] MTavg[66 63 67] TA[360] Core[A3201] PING[77] POWS[0] HASHS[0 0 0] POOLS[0] SoftOFF[0] ECHU[0 0 0] ECMM[0] SF0[376 396 416 436] SF1[376 396 416 436] SF2[376 396 416 436] PVT_T0[ 64 71 68 68 71 69 67 71 69 70 69 67 68 71 71 74 69 69 65 72 72 73 72 69 67 71 72 70 72 67 68 71 72 71 73 66 66 70 71 72 72 67 64 69 69 66 69 65 62 68 65 63 65 62 62 66 66 61 66 62 59 59 58 60 60 62 61 62 62 60 64 62 62 64 63 63 65 64 65 64 62 62 67 63 64 65 63 64 67 66 65 66 68 67 67 66 67 69 69 67 68 67 66 69 64 66 69 65 67 67 64 64 67 67 66 65 67 64 65 68] PVT_T1[ 64 65 66 67 66 62 65 66 68 66 68 66 66 67 67 69 67 67 65 71 70 69 67 66 67 69 69 68 67 67 65 69 70 68 67 65 61 69 69 69 66 65 65 64 64 65 64 63 61 66 64 65 63 61 60 63 64 62 62 59 57 58 54 58 58 56 57 60 58 58 61 59 59 62 58 59 63 61 63 64 62 60 64 63 64 64 62 60 63 62 63 64 61 63 64 65 65 65 62 63 65 65 64 65 63 61 63 61 64 66 64 61 64 64 61 64 60 63 64 62] PVT_T2[ 69 68 68 69 69 67 70 73 68 70 71 67 69 68 71 71 72 69 69 72 72 71 71 69 68 70 71 71 71 66 67 69 70 69 70 68 65 73 69 70 70 69 65 68 69 69 68 66 63 69 66 63 65 64 63 64 64 62 62 64 63 61 61 64 64 62 63 65 65 64 64 66 65 68 64 64 70 67 66 64 64 67 64 67 66 65 65 64 68 67 67 66 63 64 69 67 68 67 69 65 70 67 67 71 66 67 68 65 67 69 68 67 68 69 69 66 63 66 66 67] PVT_V0[312 318 319 317 317 318 318 316 314 315 315 315 321 314 315 321 321 324 313 312 313 319 317 314 319 317 320 315 318 316 320 316 322 317 319 319 310 311 313 315 315 317 324 328 331 320 328 326 315 315 314 313 315 314 321 318 321 311 316 320 324 318 313 330 323 325 323 327 323 321 320 317 322 319 319 320 319 318 323 323 323 329 326 326 318 320 318 322 317 317 319 319 317 325 330 322 322 319 318 314 311 315 314 315 313 322 317 316 314 315 314 313 311 313 314 315 315 315 320 323] PVT_V1[317 323 324 320 320 322 323 323 327 323 323 323 319 317 317 321 322 319 319 318 319 317 313 313 315 319 316 317 318 318 316 316 315 318 323 317 331 329 326 321 323 323 317 320 319 327 323 321 327 323 322 321 321 320 328 323 325 315 320 323 322 321 316 318 323 326 321 319 320 321 318 315 321 323 321 322 315 316 325 323 320 323 321 319 325 325 321 321 321 323 315 316 315 317 316 321 322 323 323 330 335 333 319 318 323 320 320 318 326 323 321 320 323 324 318 321 321 315 317 317] PVT_V2[318 326 330 321 322 326 312 315 319 320 319 321 314 319 318 317 318 315 315 315 317 320 321 318 313 313 315 314 315 313 323 322 322 330 323 321 318 316 313 317 316 314 318 318 320 322 320 322 315 319 318 326 329 331 324 323 323 318 323 327 325 321 319 321 323 324 327 326 327 323 325 320 327 323 323 318 320 320 321 322 323 323 323 325 323 320 325 325 323 325 329 329 329 328 326 327 319 319 319 323 320 322 321 327 327 319 319 322 317 317 319 314 318 319 317 318 324 310 312 318] MW[402029 402069 402113] MW0[52 39 41 24 22 40 43 49 49 32 46 39 41 41 37 62 44 61 43 48 31 51 30 42 40 47 40 44 46 52 60 51 46 49 55 46 45 38 44 57 41 55 45 48 47 56 48 58 50 57 48 35 54 49 63 66 48 54 57 49 49 56 52 52 41 47 59 50 53 45 57 57 59 45 47 49 44 44 52 54 52 38 51 45 54 44 52 39 59 56 56 55 51 39 49 56 60 50 58 49 52 37 59 53 46 52 44 47 56 42 51 36 36 57 50 33 49 32 60 55] MW1[51 41 50 57 43 22 56 34 42 37 45 34 30 37 47 23 37 51 33 44 31 35 35 51 50 26 28 38 38 52 47 49 30 41 28 47 41 35 39 37 39 45 53 52 38 32 48 48 33 43 43 43 57 45 33 51 57 38 48 38 51 68 53 64 48 70 39 46 53 58 58 46 43 59 50 41 41 37 36 45 45 41 44 54 56 48 38 55 48 31 38 43 49 40 46 44 41 40 56 47 26 40 35 60 42 49 60 43 64 43 56 39 60 32 54 47 49 54 30 36] MW2[45 29 47 37 28 47 25 28 42 38 43 49 32 44 40 47 43 46 46 48 36 36 37 38 43 33 38 33 40 25 33 50 46 49 29 48 47 30 35 65 49 32 38 55 46 48 43 37 46 49 46 56 38 45 38 52 53 43 48 53 40 44 39 43 46 51 43 35 31 47 38 43 38 37 51 44 32 37 43 43 45 35 35 44 49 54 55 49 27 42 52 41 48 49 45 46 37 45 31 55 35 58 34 35 42 34 53 49 47 45 50 35 30 43 22 45 47 21 34 34] ASICCRC0[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] ASICCRC1[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] ASICCRC2[0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0] CRC[0 0 0] POW_I2C[OK] FACOPTS0[] FACOPTS1[] ATAOPTS0[--avalon10-freq 376:396:416:436 --avalon10-voltage-level 37 ] ATAOPTS1[--avalon10-freq 472:492:512:532 --avalon10-voltage-level 47 ] ADJ[1] COP[0 0 0] MPO[3200] MVL[87] ATABD0[472 492 512 532] ATABD1[472 492 512 532] ATABD2[472 492 512 532] WORKMODE[0]','MM Count':1,'Smart Speed':1,'Voltage Level Offset':0,'Nonce Mask':25}

[jdcpe17]

well... i had it on normal mode...

now i have changed it to high performance mode... and its working fine now............ i dont know what the problem is........ oh well.......

[jdcpe17]

it continued working fine through the night on high performance, no issues at all.

[NotFuzzyWarm]

well... i had it on normal mode...

now i have changed it to high performance mode... and its working fine now............ i dont know what the problem is........ oh well.......

Welcome to the world of ASIC-based miners. I've ran into that with 1 A1041 and also a Whatsminer M10.

What is happening is that in Normal Mode (Avalons) / low-power mode (M10) they are not only reducing clock frequencies but also the Vcore applied to the chip strings. Due to manufacturing process variations and the mfgrs wanting to maximize usable chip yields sometimes a few marginal chips are pushing their bottom-end limits of reliable performance and are iffy about that. They will work for a bit until temperature changes push them over the edge causing some cores to drop out. When too many quit the controller sees that and restarts the miner and tries tuning again, runs for a bit, then rinse and repeat...

Performance mode uses higher Vcore to make sure the chips are happy at higher speed. End result is that the chips have a wider operating margin and run better.

[mikeywith]

What is happening is that in Normal Mode (Avalons) / low-power mode (M10) they are not only reducing clock frequencies but also the Vcore applied to the chip strings. Due to manufacturing process variations and the mfgrs wanting to maximize usable chip yields sometimes a few marginal chips are pushing their bottom-end limits of reliable performance and are iffy about that. They will work for a bit until temperature changes push them over the edge causing some cores to drop out. When too many quit the controller sees that and restarts the miner and tries tuning again, runs for a bit, then rinse and repeat...

This is similar to the multi-option firmware by Bitmain, I keep wondering why on earth won't these manufactures make an auto-tune firmware to tune every chip individually (at least the frequency for the miners that can't have different voltage), I mean BO+ does it, Vnish does it, and it works great, you get to utilize the "good" chips and let the "not so good" chips run at a different frequency that they like, and the results are.... just AWESOME.