AValon 1246 83T unstable - page 2. | Bitcointalksearch.org

Havane

jr. member

Activity: 76

Merit: 3

After a power on off, it loops and can't mine. It doen't accept temp > 110° on a chip. Huh

Same problem if y put it outsite where it's 13° C

Will try canaan support by email.

I captured the log just before the crash and after a crash

before crash after 202s, where we have theses max value for temp : MTmax[108 74 111] MTavg[62 59 63]
https://pastebin.com/xNDqrmRG

after crash 206s, where we see "out over hot", and wrong PS value : PS[0 1214 2 0 0 1272]
https://pastebin.com/ZtejwG4x

if someone have the previous firmware (Version 21042001_4ec6bb0_61407fa), i'm interested

NotFuzzyWarm

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Quote from: Havane on October 29, 2021, 04:20:13 PM

I get the new firmware "A1246-A3201-Plus-P3600W-New-Temp65_21071301" from canaan.
Same temp problem, and with it, it can't go up to 73 TH in turbo mode
here are the temp from log

1st, it's nice that Canaan is still using temp sensors in each chip

Seeing that table tells me that either those specific chips have faulty sensors or the chips/cores themselves have issues. Either way, assuming the miner is happy running in normal mode that's how I'd run it and not bother with repair because of the time involved.

Query: In normal mode I take it those chips are still reading higher temps than the others but are not in the danger zone?

That said, I'd 1st see what Canaan has to say about it. With the Avalons at least the end user can actually replace bad hash boards themselves if they are comfortable doing it.

Havane

jr. member

Activity: 76

Merit: 3

I get the new firmware "A1246-A3201-Plus-P3600W-New-Temp65_21071301" from canaan.

Same temp problem, and with it, it can't go up to 73 TH in turbo mode

here are the temp from log

Havane

jr. member

Activity: 76

Merit: 3

It's what I have done. They said open it to see if everything is OK 😂

BitMaxz

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Quote from: Havane on October 28, 2021, 04:04:33 PM

Thanks for your help. Where do you see "weird under V0" ? As the avalon is still under waranty, with log problem I coul'd ask for a new one

Check your whole logs again you can find it there not on the part that I posted above.
Look for this "Vo[0]" without quotes it shouldn't be 0 as I said above it's just my theory that it could be a PSU. You can also try to flash it first with the latest version since it is still under warranty we couldn't do anything inside your miner it can only void your warranty.

Since your miner is still under warranty why not contact the support and send it back there for replacement or repair?

Havane

jr. member

Activity: 76

Merit: 3

I see high voltage where there is high temp chips. Is it that ?

Havane

jr. member

Activity: 76

Merit: 3

Quote from: BitMaxz on October 28, 2021, 10:56:25 AM

What I guess may be the first hashboard has a bad heatsink bad adhesive or solder on that chip same on the 3rd hashboard. However, would you mind try replacing the PSU I see weird under Vo it shows 0 so it might be your PSU giving a false signal?

Thanks for your help. Where do you see "weird under V0" ? As the avalon is still under waranty, with log problem I coul'd ask for a new one

BitMaxz

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According to your logs, one of the ASIC chips reach 110c which I guess is the maximum chip temp before the temp protection was activated.

Here are the logs that I'm talking about check the PVT_T0 begin counting on the last 27 to the left

Code:

PVT_T0[ 66 69 77 74 68 69 67 69 72 72 70 66 67 72 76 75 69 69 70 72 75 76 70 68 67 70 73 73 70 67 67 71 74 73 71 67 67 69 73 75 74 70 66 69 74 70 67 67 64 67 68 70 69 65 62 68 68 62 64 64 59 61 58 61 62 62 64 61 60 63 60 63 64 67 66 64 65 64 66 64 61 63 65 82 66 65 61 64 66 64 65 63 64 110 65 67 65 65 64 62 68 66 66 64 61 61 83 66 64 63 63 61 67 62 65 66 59 57 63 64]
PVT_T1[ 61 64 69 67 67 64 62 67 67 73 68 65 65 68 72 76 69 68 67 67 76 72 70 69 65 69 77 72 68 65 65 69 71 70 85 68 65 70 74 73 70 67 65 67 69 71 65 66 63 65 66 69 68 65 60 66 68 63 64 62 59 56 57 59 61 63 62 61 59 59 63 63 64 63 61 61 65 65 61 63 62 62 65 66 64 66 64 63 65 65 64 62 62 62 64 62 67 63 62 65 67 65 62 64 65 62 62 65 64 61 59 62 64 64 64 64 60 60 64 64] 
PVT_T2[ 66 69 70 69 69 70 69 73 73 72 70 64 66 81 72 71 73 119 67 74 73 73 69 69 67 73 74 74 94 67 68 73 72 76 74 67 69 73 74 75 72 69 69 69 73 71 73 68 64 68 70 69 67 67 65 66 68 63 65 64 59 61 59 64 63 59 61 64 64 62 66 66 66 67 65 65 68 69 69 64 63 63 68 67 64 67 62 67 69 68 65 68 104 67 68 66 67 67 65 66 68 66 68 67 79 68 69 64 68 70 68 68 68 66 67 67 79 60 67 68] 
PVT_V0[305 308 309 307 305 305 303 306 304 298 301 297 302 301 301 298 299 297 298 304 301 298 302 301 303 299 299 300 303 301 295 299 301 302 301 303 302 301 301 297 298 299 298 299 298 306 301 302 306 302 298 303 303 307 307 307 307 305 309 312 313 308 306 309 308 310 313 311 312 311 310 307 305 309 306 306 305 303 301 302 301 309 311 323 309 307 309 305 305 308 305 307 305 350 305 303 305 306 307 305 305 305 310 309 307 307 317 303 305 307 305 304 305 306 309 306 307 310 307 312] 
PVT_V1[303 307 304 310 307 305 318 312 312 303 300 298 299 299 300 306 307 309 302 299 296 301 299 300 306 304 298 309 300 298 299 298 294 297 309 297 309 305 306 293 298 297 306 307 307 298 293 294 302 301 299 304 303 301 301 306 306 303 304 313 319 312 310 313 309 312 306 307 306 306 311 313 302 301 311 305 305 307 301 305 307 305 302 309 301 302 304 309 315 313 306 307 303 302 302 307 310 311 309 310 304 302 316 315 315 309 307 313 306 305 307 312 314 307 313 309 304 301 302 303] 
PVT_V2[299 302 302 301 301 303 310 314 315 305 302 303 309 309 298 308 305 345 305 301 301 299 300 301 299 304 296 306 316 300 298 299 294 295 299 297 299 299 306 297 299 305 298 301 295 307 303 301 301 302 298 300 304 305 306 306 314 306 305 310 317 309 307 305 304 305 301 303 301 303 302 304 302 301 303 309 311 309 301 303 302 305 303 303 307 308 311 307 304 305 308 308 336 310 311 309 309 307 311 301 302 307 309 312 326 310 312 314 308 303 305 306 307 304 301 303 312 306 305 307]

I just include voltage because I saw 350 under PVT_V0 of the first chip before the next chip reaches 110 temps. That was your 1st hashboard the 2nd hashboard doesn't show any high temp and the 3rd hashboard it has 104c.

What I guess may be the first hashboard has a bad heatsink bad adhesive or solder on that chip same on the 3rd hashboard. However, would you mind try replacing the PSU I see weird under Vo it shows 0 so it might be your PSU giving a false signal?

Havane

jr. member

Activity: 76

Merit: 3

Hello

Since few days, I have difficulties with my Avalon1246 83T : Hashrate drops, and it reboots often. Problems occur in normal or turbo mode
Previously, It worked without problem.

Here are log and picture.

I could catch a log with SYSTEMSTATU[Work: Out Over Hot, Hash Board: 3 ] error ; but I always see 26° / 66° in the dashboard, not high
https://pastebin.com/uGH0PH9w

It's not an internet provider problem, because just next to it in the same room an other 1246 85T runs perfectly.

Note that fans run at 6500 RPM (whereas on other 1246 85T runs at 3500. Maybe it's ok)

Here a view of minerstat where ou can see it works during hours (days) and then it has problems

Any idea of the problem ?

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