Abstract: A computer capable of automatic bandwidth configuration according to I/O expansion card (e.g., PCI-Express expansion card) type is provided. A motherboard of the computer includes an I/O expansion slot, a chipset, and a configuration setting circuit. When the I/O expansion slot supports different types of I/O expansion cards having multiple interface card slot combinations, a corresponding bandwidth configuration message is generated on the I/O expansion card. The bandwidth configuration message is used to indicate the type of the I/O expansion card that is being used and thereby control the configuration setting circuit to adjust the bandwidth configuration in the chipset.

Abstract: The present invention relates to a structure for directly burning a program into a motherboard comprising a burning plate having a series connected first transistor set, a resistor, a comparator and a series connected second transistor set mounted thereon, wherein the first transistor set, the resistor, and comparator are series connected, two input terminals of the first transistor set and an output terminal of the comparator are electrically connected to a burner, an output terminal of the first transistor set is coupled to a serial data pin of a memory on the motherboard, an input terminal of the second transistor set is electrically connected to the burner, and an output terminal of the second transistor set is coupled to a serial clock pin of the memory for directly burning the program into the memory and checking the program burned therein.