Debug card and method for diagnosing faults

摘要

A debug card for diagnosing a motherboard and a power supply unit (PSU) of a same computer includes a plurality of first nixie tubes, a plurality of second nixie tubes, a first port, a second port, and a control unit. The control unit is electronically connected to the plurality of first nixie tubes, the plurality of second nixie tubes, the first port, and the second port. The first port is electronically connected to the motherboard, and the second port is electronically connected to the PSU. Under the control of the control unit, fault codes of the motherboard are displayed by the plurality of the first nixie tubes, and fault codes of the PSU are displayed by the plurality of the second nixie tubes.