Hi, need some help. I've built my mini-farm into a Hydra Server III Case and it's been running very well. However, I got to it after work one day only to find a R606 disabled. When restarting, it only shows BM1387:03 to indicate only three chips are communicating and it disables again after a few seconds.

A Pi4 4GB was controlling this R606 (V5) plus x6 Newpacs (525MHz) over x2 GS USB hubs (x4 and x2). Different instances were being used, three in total.

A second Pi4 4GB was controlling another R606 (V7) and x5 Newpacs (525MHz) over x1 GS USB Hub and this has been running at WU100% for days. Again, two instances to split the devices.

Getting back to the poorly R606...I've killed the power and USB for a while but it only registers ':03' chips and doesn't fire up. It was running fine at 750MHz on V5 for days. Any ideas of how to recover this? I'm using a USB extension cable to plug a keyboard/mouse BT receiver in this Pi as the stack depth is fiddley to reach. Would this cable be an issue and enough to bring down a mighty R606?

Set up:

x2 Pi4 4GB
x3 GS USB Hubs
x2 R606
x11 Newpacs
x1 Hydra III Server Case
x3 120mm Bequiet High Speed Silent Wings 3 case intake fans with mesh
x4 80mm Bequiet Pure Wings 2 case extraction fans
R606 intake fans replaced with 80mm Bequiet Pure Wings 2 fans
x2 80mm Bequiet Pure Wings 2 fans added to both R606 on the extraction side
x3 Arctic Air USB Fans for each GS USB Hub
x1 Thermaltake x10 Fan Hub Controller/Splitter
x1 Newegg x4 Fan Speed Controller for intake fans
x1 DPS1200 PSU
x2 USB Thermometers for case IN/OUT temp monitoring
Lindy double shielded USB cables
All cable managed to death

Any help is appreciated in restoring the R606 back to the life please. I was at 3.4T and now down to 2.4T