I acquired the premium package, so I wouldn’t be plugging in anything that would unexpectedly cause an issue and followed much of the instructions covered in the quick-start guide with a supported drive. I have acquired a Samsung SFD-321B (I have never used this drive before, but the seller who provided it to me told me it works fine) which was described as supported on these forums.
I was careful with the instructions and ensure that data line, met with 1. I plugged the cable in with the notch orientation displayed on the drive.
I believe that these pins were correct, followed through the instructions; very carefully verified the cable was aligned to the connector multiple times through the course of testing this.
Where I think I may have screwed up, I did not read the instructions properly and I did plug in the power external power supply’s Molex connector also into the KryoFlux board; following the instructions, I did not actually turn on the external power supply until much later once I had gone through running the “dtc -c2” commands. I would see the drive spin up, but all I would get in the command prompt is:
I went carefully through the instructions, realized the Molex connector was connected to the board and it should not be and removed it.Control command rejected by the device CM: maxtrack=0
I then went through much of the tutorial again, trying to do things the right way. By this point, the controller when connected fresh to USB always returned:
This was regardless if the drive data cable was connected or not to the drive, regardless if power was being provided to the drive or not.Control command rejected by the device CM: maxtrack=0
I had noticed a burning smell and immediately disconnected everything, rechecked all the cables and everything were in the right place, they were. I went through everything again, very carefully checking the temperature of each component at each step. Eventually, I found when I turn on the power supply, that was supplying power to the floppy drive, one of the chips on the KryoFlux becomes too hot to touch within seconds (highlighted in the picture). Turning off the external power supply to the drive causes it to stop getting so hot.
At this point, I am not sure:
- If that chip is expected to get that warm? I looked up the chip on Google it seemed to be a SN74LVC244A, an octal buffer/driver with 3 state outputs, nothing about that description seemed like it should be generating that much heat; which is why I suspect I’ve fried this board of dreams.
- If the floppy drive was faulty to begin with, causing this.
- If the floppy drive is faulty because of what I did earlier.
- If I fried the KryoFlux earlier and this is the result of that.
- If I damaged the provided power supply through my mishap earlier.
I am not sure where to approach this at this point; judging from the other comments on other issues on this forum, I would really appreciate advice that does not require me obtaining a multi-meter or frying more things.
Any guidance on where to go on from here would be appreciated.
Edit: Fixed some typos that were bothering me rereading this.