Voltage(?) issue on V4.1 boards when using external power. #579
Description
I recently got a V4.1 board and currently building a dedicated box and I use an external molex PSU. When setting up the Greaseweazle to use external power by removing the USB 5V ENABLE jumper and powering on the greaseweazle and floppy drives my (relatively modern) monitor freaks out goes black or flashes between an image and black. When I turn the greaseweazle off, the monitor goes normal again.
How I wired it up is simply connect the greaseweazle and drives directly to the Molex PSU and use a USB C to USB A to connect to the PC. These issues don't happen when the greaseweazle isn't connected to the PC.
I've tried powering my computer, monitor and greaseweazle box through the same powerstrip and seperately thinking it might be some grounding issue as my place doesn't have proper earthing, but no luck.