Patent ID: 7996175

Claim:
A peripheral component interconnect (PCI) load card used for simulating PCI loads in testing stability of motherboards, the PCI load card comprising: a PCI interface having a standby power pin and a system power pin; an operational amplifier; at least two switches, a terminal of each of the at least two switches connected to an input terminal of the operational amplifier and connected to the standby power pin of the PCI interface via a first resistor, the other terminals of the at least two switches respectively connected to ground via at least two resistors, the other input terminal of the operational amplifier being grounded; and a controller having a first terminal, a second terminal, and a third terminal, an output terminal of the operational amplifier connected to the first terminal of the controller to make the controller conduct, the second terminal of the controller connected to the system power pin of the PCI interface, the third terminal of the controller being grounded, the power of the controller adjusted by controlling the at least two switches.