Pangolin Whatsminer M10 - 33TH at 2145W

[edonkey]

I am waiting for a reply on the m20 72th from pangolin.
I hope helping out with this psu has not ruffled feathers.

Yeah I hope you're right. I got lost interest in hobby level mining in mid-2017 because I was fed up with Bitmain. Figured I'd just let my S9's and L3+ just run into the sunset, slowly dying one hash board at a time.

But I'm really impressed with MicroBT. I'm glad I managed to grab an M10, even if I was late to the party (should have been paying more attention and pulled the trigger earlier).

Hopefully Pangolin realizes the value proposition of being a community vetted, trusted, attractive alternative to Bitmain.

This is a cut and dried warranty problem. All you did was prove that sarcheer's problem was the PSU.

Replacing the PSU (which is the right thing to do) seems like an inexpensive way for them to cement their trust with this community. It's a no-brainer really.

[philipma1957]

It is tough for me  I am no longer a garage 2x 30 amp 240 volt miner.

between my garage and the two solar arrays  I have access to 26x   30 amp x 240 volts.

about 134 kwatts  not all solar but if I pushed and did  100 kwatts mostly solar subsidized

it is  30 m20 king size units  that is 72 x 30 = 2.16ph

we are pushing 600th now with lessor gear.  We hope to move the lessor gear to a new site and fill every old site with

m20 +

I want to continue with whatsminer gear.  
As it is good in price and efficiency.
It has also been decent in RMA service.  

buying 33 units of m20+  will be over 66k plus trump tax of 18,216  this is a hard move for us to do.
that fucking tax is a bitch.
and now a rma worry makes thing worse.

One of the reasons I did the psu was to try to see how pangolin really is about rma of gear.

So I now will wait to find out what happens.

[sarcheer]

Given it is the weekend, I have not heard back from Pangolin, but they have now been made aware of the results of the PSU swap and I made a request to have my PSU replaced under warranty. I will continue to keep the community updated with how this process plays out. Given the level of responsiveness, I would be very surprised if they don’t send me a new PSU.

So here is an update on trying to get the PSU from my M10 replaced under warranty:

Pango is saying I need to ship them back the damaged PSU at my own expense (don't like it, but no big deal and standard for the industry), but are also asking that I pay the shipping for them to send the new PSU to me.

Costs are ~$75-80 to ship the PSU to them in China and the estimated shipping from Pango is $45. All together ~$120, or the cost of a brand new one without shipping.

After over 2 weeks of troubleshooting that I eventually solved with the help of Phil and not Pango support, I now to have to pay over a month's profit with this machine to get a replacement part under warranty.

If Phil wasn't kind enough to sell me the PSU we used to definitively prove the damage to the factory PSU, I would have the choice of mining at reduced hashrate and hoping the PSU did not fail completely down the road or adding well over a month to the break-even date for this purchase.

Not happy with the support I've received from Pangolinminer.

[philipma1957]

It is difficult to turn a profit in mining and asking the return of the item makes the rma too costly. You would lose shipping of old gear shipping of new gear and no mining for days while gear cross shipped.

They should have offered to ship the rma first and once you got it you could send them the old psu. You would not lose mining time that way.

I know they have procedures to prevent fraud etc. but in your case you had a new replacement (mine) to show the 31th vs the 28th.  The could have made an exception and said hold the old psu.

[Steamtyme]

Not happy with the support I've received from Pangolinminer.

Sorry to hear that is disappointing to say the least. I'm amazed they are expecting you to cover shipping both ways for the PSU. I get the one way for your damaged unit, with them covering the shipping of a replacement.
I know I had to make that call one time, and I just left it at a reduced hashrate, as it was an expense I never would have recovered. This was only a hashboard from different gear, so I wasn't worried about an overall failure down the road.

I wonder if the response would have been different if the PSU had failed completely, and not just partially with your own additional troubleshooting. I suggest you make a post in the Pangolin Service Discussion thread documenting this.

[minefarmbuy]

Yea, kind of arduous I might just buy a back up anyway and have that to while you ship to and fro. Let me know if you want us to run some shipping numbers for you.

[philipma1957]

Yea, kind of arduous I might just buy a back up anyway and have that to while you ship to and fro. Let me know if you want us to run some shipping numbers for you.

I will most likely order one m10 psu again as I have 8 M10's.

Still waiting for info on the m20 demo's.

I will need to telegram them today  but it is 10:50 pm fri in china

So most likely I wont get a reply  until  10pm New York time  Sunday night which will be 10 am China time.

[edonkey]

Well it looks like I lost a hash board this morning. I got warnings from the pool, then looked and SM0 was registering 0 frequency.

This event is visible from the mining status page:

Code:

E101
Slot0 Chip Reset Error
Warning and retry
3
Fri Mar 29 10:59:42 2019
cgminer

I've rebooted it and it seems to be in a mode where CGMiner keeps restarting. It the elapsed time never goes above 1 second.

So now SM0 shows zero effective chips while SM1 and SM2 show 105 chips. But none of the boards are hashing.

Next I power cycled it via PDU (I'm not onsite). It's still in the same state. Namely SM0 seems dead and all mining has stopped.

Any ideas what to do next?

[philipma1957]

I ended up needing this part  https://pangolinminer.com/product/miner-adapter-board-m10-m10s-d1/

it was overtightened at the factory and caused the same symptoms that you are having.

I posted on it alot in this thread or the other m10 thread.

start here: https://bitcointalk.org/index.php?topic=5033998.msg49810517#msg49810517

photos and info on the repair are there.

If you go the route of getting that part let us know if it works.

[edonkey]

Thanks Phil. I'll take a look.

In the meantime the M10 has at least brought up the remaining two boards, so it's not completely dead in the water. I guess that's something.


Dumb question: what is the order of the board layout?

My bad board is SM0. When looking at the miner from the front, is that the leftmost or rightmost board?

I assume it's not in the middle ;-)

[HagssFIN]

@edonkey
If you follow the data cable from the hash board to the control board, is there any marking that would help figure it out?

[edonkey]

@edonkey
If you follow the data cable from the hash board to the control board, is there any marking that would help figure it out?

Maybe. But I won't have physical access to the miner till later today.

Just trying to plan out the repair effort.

[philipma1957]

L     M       R

SM0 SM1 SM2

So if the 1 to 3 bridge is bad and all pcbs are good

switch L to M

it will still say

SM0 is dead  if the boards are good

if the original  SM0 board is dead  

it will say SM1 is dead

i did this testing  and found the problem followed the slots.
also the 3 slot bridge died after time.

this makes sense since i suspect the over tighten bridge has a tiny crack in the traces which vibration will only make worse.

[edonkey]

Thanks Phil. That's very helpful info.

Looks like I have the same problem as you.

I swapped the SM0 and SM1 hash boards. While I was in there I added a couple of thin nylon washers under the bridge on the chance that it might prevent a short.

When I brought the miner up, the problem stayed with the SM0 slot.

Since the problem is following the slot, not the hash board, I think I have a bad bridge.

Seems like this is a common problem. They should consider reworking their data connection design. What was wrong with cables, after all?

Other than this bridge problem, the build quality seems really nice. I was impressed, especially with those beefy power bus connections.

Looks like I need to ask pangolinminer.com support for a replacement bridge. Better than a hash board, I guess.

[philipma1957]

ask them for 2 I will pay for one.  Saves on shipping. You are USA based?

[edonkey]

ask them for 2 I will pay for one.  Saves on shipping. You are USA based?

Ok, I will. Maybe I'll get an extra one too.

Yes, I'm in the US. Just on the opposite coast.

[philipma1957]

Yeah it is a 10 dollar item. no need to order one at a time. since shipping for 2 or 3 is most likely the same.

When I got the replacement I was not quite sure it was the problem  after I fixed it I realized having a few extra is a good idea.

[elokk]

So here is an update on trying to get the PSU from my M10 replaced under warranty:

Pango is saying I need to ship them back the damaged PSU at my own expense (don't like it, but no big deal and standard for the industry), but are also asking that I pay the shipping for them to send the new PSU to me.

Costs are ~$75-80 to ship the PSU to them in China and the estimated shipping from Pango is $45. All together ~$120, or the cost of a brand new one without shipping.

After over 2 weeks of troubleshooting that I eventually solved with the help of Phil and not Pango support, I now to have to pay over a month's profit with this machine to get a replacement part under warranty.

If Phil wasn't kind enough to sell me the PSU we used to definitively prove the damage to the factory PSU, I would have the choice of mining at reduced hashrate and hoping the PSU did not fail completely down the road or adding well over a month to the break-even date for this purchase.

Not happy with the support I've received from Pangolinminer.

There is a US based Whatsminer distributer that would likely be a better choice over Pango for US residents in terms of warranty issues.

[philipma1957]

There is a US based Whatsminer distributer that would likely be a better choice over Pango for US residents in terms of warranty issues.

This was a tough call for me to use.  It seemed I could not legally avoid trump tax using us based seller his prices were a bit higher then the 799 usd needed to legally avoid the issue.

However  when the M20 comes out this may not be an issue since the 72th version is priced high  at both sites  it is more then 1900  so in both cases trump tax looks like an issue.

So I may try both sellers for the M20.

[minefarmbuy]

Who is the US distributor? .net?