Any luck with this? I've been having the exact same problem since last 3 days.

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.

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!

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!

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?

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

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!

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!

Thank you!

Can I directly flash my D3 unit to the latest mod v1.12 :: 10/12 (https://mega.nz/#!ylJX0LCQ!8JWryI0jDhgMvPdH2mrOvybkXCtrpYtQpxu0akdxU1s) ?

Or is there any intermediate mod that I need to upgrade to first?

Thanks!

Nice setup! I still haven't finished my box to house all my units. Hopefully this month...

The conversation drifted towards another issue that I'm not primarily concerned about. It's not the noise but the uneven nature of the sound which is bothering me. My mistake, let me add more to it. The fan is constantly ramping up and down with a strange whistling noise that my D3 units don't make. I also have some more information to add to it which might help. I found out when is the fan making the noise.

Please take a look at the attached image:


https://imgur.com/a/cyANY

You see 3 'yellow' columns which signify the duration for which my S9 was rented on miningrigsrental.com

From the right, the highly fluctuating hashrate graph is when the S9 is being noisy. At this point, all the hashborads are under 78c. During the rented duration when you don't see the fluctuation in the graph, the S9 is running smoothly.

There's nothing I'm doing from my end that might cause this uneven hashrate.

My understanding is that a neutral air pressure inside the cabinet would take care of overheating. Air intakes and exhaust will have to be channeled through foam lined fins in order to absorb the noise. At least that's the concept I see most commonly in designs of other people. Or perhaps, something like this :

https://www.youtube.com/watch?v=dpGuDAWb4hQ

or


https://www.youtube.com/watch?v=LMqAv7k9g4U

ok, so here's the thing. I saw a post somewhere (reddit or bitcointalk) where someone had mentioned that it's due to a much slower intake fan that the miner makes the whistling sound. Then they talked about replacing the fan with a faster/silent model which reduced the whistling effect. Has anyone else seen this post? or if you can recommend me the fan I can upgrade to?

thanks!

ok! Thanks! I was wondering if anyone has replaced the fan with a quieter, more efficient model.

it's 3 days old 

https://imgur.com/a/qDV4u

My S9 fan has a strange whining/whistling noise. Is it normal or is it just my unit? The temperature of each hashing board it well under 75c but my fan ramps up a lot quite often. Any suggestions? Thanks!

I had the same problem but I tried multiple reset attempts and it worked eventually. In short, turn D3 on - let it completely boot (2-3 minutes) - press reset for 10 seconds - fault light starts blinking - reboot


If the fault light doesn't start blinking, try again.

best of luck

My antminer D3 has no micro SD card slot! is that normal?

Hi all!

I'm trying to build a noise reduction enclosure for housing 4 units of D3 and 1 unit of S9. I want to go with a push/pull format for the enclosure using 5 x 120mm case fans for each side. Since there's no motherboard, how do I power these case fans? Can I use some kind of USB adapter to power the fans?  I can't control the fan speed either but that's another problem for another day. Any feedback would be much appreciated!!