Antminer D3 overheating AFTER cleaning the hashboard and removing the dust

[rageprone]

Hi all,

so, all of my D3 units have been overheating for a while (85+) and some of the chips would often turn x.

I thought maybe it has sucked in too much dust so I opened them and it looked like it could use some cleaning (see image).

Unfortunately, after cleaning, the temperature is shooting up even higher and the ASIC is constantly rebooting, probably as a safety measure.

The fan speeds look ok and I can hear them ramping up to bring down the temperature till it gets too hot and the ASIC reboots.

Any idea what went wrong? I opened and cleaned my S9 and A3 too and they are indeed running few degrees lower than before! How come only the D3 units were screwed so bad? (see image)

https://imgur.com/a/BMvD6

thanks!

[digital$]

after brushing loose dirt off, use a contact cleaner spray(a product specifically for PCB boards)...after re-assembling flash your firmware with latest version.  let us know how it goes

[remauto1187ma]

Holy Cow!  After looking at the pic you were way over due for cleaning that D3!  You are lucky it didnt fry itself!

[rageprone]

Yes, honestly last time I opened it, it wasn't this dusty! 

After I brushed the dirt off, I used a blower to blow off any residual dust. Could you please recommend me a contact cleaner spray? Is this ok https://www.amazon.com/WD-40-Specialist-Electrical-Contact-STRAW-SPRAYS/dp/B00CMT9TFY/ref=sr_1_fkmr3_1?s=industrial&ie=UTF8&qid=1520721398&sr=1-1-fkmr3&keywords=PCB+contact+cleaner+spray ?

Thanks!

[digital$]

Yes, honestly last time I opened it, it wasn't this dusty! 

After I brushed the dirt off, I used a blower to blow off any residual dust. Could you please recommend me a contact cleaner spray? Is this ok https://www.amazon.com/WD-40-Specialist-Electrical-Contact-STRAW-SPRAYS/dp/B00CMT9TFY/ref=sr_1_fkmr3_1?s=industrial&ie=UTF8&qid=1520721398&sr=1-1-fkmr3&keywords=PCB+contact+cleaner+spray ?

Thanks!

that product is perfect...doesn't have to be a premium brand contact cleaner, maybe your local electrical supply store stocks a cheaper brand(just check labeling and make sure it states for PCB boards)  good luck

[remauto1187ma]

Yes that WD-40 product will work perfectly.  You really arent cleaning the PCB.  You are cleaning the heatsinks off.  The dust and dirt on the heatsinks acts as a blanket insulating the heatsink.  The heatsinks whole job in life is to dissipate heat from the chips on the card to the surrounding air.  Insulate the heatsink with dirt and you just lowered its ability to do its job.  I would get your equipment on a regular scheduled maintenance shutdown and clean BEFORE it ever gets this bad again.  Maybe every 6 months? Maybe 4?

[szafa]

Try use thermal paste in each chip,should be helps.

[Jaycee99]

I forgot this name like a filter for aircons or you can make a homemade net or a piece of paper which air can go though this paper should be fine that does not break or torn apart got this Idea from a posthere from bitcointalk.org too did not get the chance to save it if you understand my explanation when you buy a filter you put it on the exos of the miner. You dont need to clean a lot of you tried the idea that I got.

Sorry if wrong terms are used I am not officially a miner just want to know about miner step by step until I bought a miner for myself.

I got a problem linking the link here on bitcointalk.org so I would suggest search on Google aircoin filter and miner dust filter.

[rageprone]

I forgot this name like a filter for aircons or you can make a homemade net or a piece of paper which air can go though this paper should be fine that does not break or torn apart got this Idea from a posthere from bitcointalk.org too did not get the chance to save it if you understand my explanation when you buy a filter you put it on the exos of the miner. You dont need to clean a lot of you tried the idea that I got.

Sorry if wrong terms are used I am not officially a miner just want to know about miner step by step until I bought a miner for myself.

I got a problem linking the link here on bitcointalk.org so I would suggest search on Google aircoin filter and miner dust filter.

thanks, I'll search for a suitable filter that I can use.

[rageprone]

While I'm waiting for the contact cleaner to be delivered, do you think it might have anything to do with the order in which I put the cards back?

I mean, does it matter if I put each hashboard in the same slot I took it out from?

[rageprone]

Yes, honestly last time I opened it, it wasn't this dusty! 

After I brushed the dirt off, I used a blower to blow off any residual dust. Could you please recommend me a contact cleaner spray? Is this ok https://www.amazon.com/WD-40-Specialist-Electrical-Contact-STRAW-SPRAYS/dp/B00CMT9TFY/ref=sr_1_fkmr3_1?s=industrial&ie=UTF8&qid=1520721398&sr=1-1-fkmr3&keywords=PCB+contact+cleaner+spray ?

Thanks!

that product is perfect...doesn't have to be a premium brand contact cleaner, maybe your local electrical supply store stocks a cheaper brand(just check labeling and make sure it states for PCB boards)  good luck

So, I used the contact cleaner to clean all the boards and plugged it back in. In less than 2 minutes of the ASIC booting, all boards were over 100c!! I am sure I didn't damage the cards while handling. Do you think using compressed air might have damaged some temperature sensor on board? Please help me!

[digital$]

hi, try reinstall firmware.  if its any consolation i'm also experiencing strange behavior from some of my machines.  imho D3's are not stable, running L3 and T9+ without any problems in the same location.  before the reinstall of firmware, boot the machine up/let it run 2-3min if temp goes to high reboot the machine again and take note of the temps, sometimes it auto-corrects on reboot(@least for me)  could be buggy firmware/software related showing incorrect temps.  check fans rpm front/back as well/set to manual @100%

[rageprone]

I've tried all of that already. Fan speeds look ok because I can see the fan ramping up when it's overheating and then ramping down when the miner auto reboots.
I reset it to default and reinstalled the latest firmware too. It was running fine for last 3 months. In fact, I opened to clean it because past few days it was running into 80s. Now I frikking regret opening it. Just my luck! Wondering if Bitmain will help me troubleshoot it because it's no longer under warranty and I don't want to spend money to fix it. lol!

[digital$]

yeah, bitmain aint going to help.  tried with a few of my faulty units and got back the generic troubleshoot answer.  as far as i know the D3 has auto shutdown function for high heat so if after trying everything just run the bastard and monitor asic status(chips that show xxx)if it runs without auto shutdown then...suspect faulty temp sensor and or combination of buggy firmware

[rageprone]

yeah, it shuts down and reboots constantly. I can't believe my luck that the exact same problem happened in 3 exact same units. I can't help but think if there was anything I could have damaged while taking the boards out and putting it back in but can't think of anything.

[digital$]

man, i feel your frustration.  have 2xD3 sitting in my office right now with problems--cleaned them put back in same order/fired them up/no boards show.  tried everything under the sun to try get these boards back and.....nada/nothing   ive come to the conclusion like so many members here that they just not stable compared to the other asic models BM sells...hardware or software bugs--only bitmain knows

[nathan1]

yeah, it shuts down and reboots constantly. I can't believe my luck that the exact same problem happened in 3 exact same units. I can't help but think if there was anything I could have damaged while taking the boards out and putting it back in but can't think of anything.

hey, saw your post in reddit as well. looks like youve found a solution.
you installed the fan flipped to the wrong side so, the hot air was being blown back into the d3.
anyways, hows the machine doing now.