Any ideas what might be wrong with one of my s9? I have 4 of them, one of them got fried the connections.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.ibb.co%2FV2JK7V3%2F80394330-E629-470-E-AE49-A70328118225.jpg&t=663&c=K2uOYCvjMQoIyg)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.ibb.co%2F44fqpdC%2F072-A0-AEC-FD81-409-F-BCB0-20-A9373139-A8.jpg&t=663&c=v5hjojlkW0kfCw)
did this fix photo?
okay what is your voltage rating?
what did you set the hash rate to?
looks like you have a apw3++ or apw3+ psu is that correct?
Assuming you have an apw3+ or apw3++
you can melt out for a few reasons.
High clock like 15th or 16th
voltage drop from 240 to 200 this means more amps and more heat.
connections were not tight due to plugging and unplugging
I have found that a fairly high clock combined with a voltage drop or with a loose connection does exactly what you have.
Try clocking all the rest of your units 1 or 2 th lower than they are right now.