Users requiring a formatter for the PS2251-16 controller typically experience the following issues:
If the drive shows as "Unknown Device" or "No Media", you can force it into ROM mode: formatter silicon power v3700 ps2251162
The standard Windows "Format" tool cannot fix these hardware-level errors. You must use "Mass Production Tools" (MPTool) specific to the controller vendor. Users requiring a formatter for the PS2251-16 controller