Neat. Any chance someone can post pictures of the gen 1, 2 and 3 boards, along with the controllers. Curious if there are any board specific changes.
Lightfoot, I don't know what the root cause is, but I can tell everyone here that there's a fix coming from Inno.
Here's a slightly edited excerpt of an email I received from Chloe.
Hello Vinylwasp,
We have solved the restart and reboot problem in batch 3. No update in hardware but the firmware in STM32 MCU and SD card both have updates.
SD card firmware has been upgraded to v2.0.1. For ST MCU firmware, we will send you a testing jig (which is expensive) and user manual to update.
For smaller batch one and batch two buyers who bought less than 50 units, we will send them new STM32 MCU for local replacement, but will need them to find local expertise to execute that.
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I replied suggesting that Chloe reach out to Longsnowsm, yourself and/or GenTarkin to discuss how to co-ordinate reflashing the group buy miners after sending you a jig.
I additionally suggested that yourself or GenTarkin could be utilized in your respective geographies to flash units belonging to small purchasers rather than sending them an updated STM32 MCU for local replacement, while offering my jig (once I receive it) and my services down under. I'm based in NZ.
I've been involved in the IT industry for the past 20 years and have seen numerous failures, so this is very familiar ground. Sales promise shipping date, orders are taken and paid for, development takes longer than anticipated (best case targets rarely come true), buyers start complaining about missed shipping dates, testing is shortened -> product has bugs.
So before everyone starts screaming about how terrible this situation is, remember the pressure applied to ship this product, the large investors who laid down $0.5-1M, and the fact that Inno have been working tirelessly to improve both the hardware and the software over the past 4-6 weeks with 3 versions of hardware and 6+ versions of software shipped in this period. Yes they can improve comms but they've got large enterprise customers who are screaming much closer to home in their native tongue and Chloe seems to be the only person in a comms role (btw: I checked with Chloe that it was ok to share the information above). This is the industry we've chosen to jump into for better or worse. I'm hurting too but I knew the risk before I laid down my money.
My personal experience is that the restarts are not the real problem, the problem is that some cards do not restart. To solve this, I've been monitoring each cards work and applying +2Mv to the miner and watching for 24 hours. It seems to be working. I now have miners which still restart all 4 cards most of the time. Not only that my B1's are hashing on Prohashing at around 250-260+ Mhs 2hr avg. and my B2's hash at 270+Mhs.
B1 = 822-824Mv at 1200Hz
B2 = 826-828Mv at 1224Hz
They're running between 45-52 C most of the time, but will drop into the 30's overnight. I do through a lot of cool air at them though so mileage may vary.
HTH