test power supply voltages, be aware that the voltages must be withinATX specified tolerances.
PATA disk drive. PATA data connector at left. Power connector at right. Six pins to add a jumper to select master versus slave device between them. Notice that pin 20 is missing. Also see the notch at top center in the black plastic shell to made with the bump on the connector, forcin...
▒▒░▒▒ ▒▒░▒▒ ▒▒░▓▓▓▓▓ 12V on pin 4, for PS/2 drive The power connector J3 can be used as either input or output. Configurations other than the USB-powered PC drive (see picture) are untested. Firmware As of August 2020, there is no working firmw...