With the ATX standard also came the ATX power supply (PSU), the standard for which ... the -5V rail was removed, and the -12V rail made optional. The ATX power connector with the mainboard was ...
The design features banana plugs outputting +12V, -12V, +5V ... To make everything work, a load resistor on the 5V circuit makes the power supply think it’s hooked up to a motherboard.
Nvidia addressed the concern regarding the potential melting of the graphics card power supply interface that previously ...