Abstract: Data acquisition methods and systems in support of non-snoop transactions. In the data acquisition method, the cache memory is partially written back and invalidate, such that a portion of the data in the cache memory is written back to the DMA buffer. The endpoint device is directed to use a non-snoop transaction to read the data stored in the DMA buffer. The data stored in the DMA buffer is acquired directly without snooping the processor when receiving a non-snoop read transaction.

Abstract: A method and a motherboard for automatically determining the memory type. By applying the characteristics of different operational voltages for various dynamic random access memory modules, a software program is used to drive a control signal and to automatically adjust the control voltage of the dynamic random access memory. An automatic detection of the types of the dynamic random access memory is obtained. The objectives of protecting the dynamic random access memory and to allow the dynamic random access memory to operate normally can thus be achieved. The invention not only provides the detection mechanism for accessing the dynamic random access memory during the initial activation of the computer system, but also determines the voltages required by the memory module for the computer system to enter various power saving modes.

Abstract: A system of device information management for use in a computer system is provided. The system includes an application device having a RAM, and a BIOS ROM. The BIOS ROM implements a specific data structure to store device information of the application device. When the computer system boots, the BIOS in the BIOS ROM reads device information, and writes it to the RAM of the application device. The application device then directly loads device information from the RAM. The device driver uses a standard PNP function call to update device information in the BIOS ROM. The BIOS writes the updated device information to the RAM of the application device, and the application device loads the updated device information from the RAM.

Abstract: An apparatus for improving the detection of IDE bus cable configuration is provided. The apparatus refers to a type of latching device having a triggering terminal and an output terminal that links up a detection device and an IDE bus. The triggering terminal couples with a signal lead of the IDE bus. The output terminal couples with a signal detection terminal of the detection device so that the output terminal of the latching device is reset to a low potential in a system reset. The output terminal of the latching device outputs a high potential when the triggering terminal of the latching device receives any signal variation. The IDE bus is diagnosed as having an 80-pin cable configuration when a low potential is sent from the output terminal of the D-type flip-flop to the signal detection terminal of the GPIO controller.

Abstract: A method and a motherboard for automatically determining the memory type. By applying the characteristics of different operational voltages for various dynamic random access memory modules, a software program is used to drive a control signal and to automatically adjust the control voltage of the dynamic random access memory. An automatic detection of the types of the dynamic random access memory is obtained. The objectives of protecting the dynamic random access memory and to allow the dynamic random access memory to operate normally can thus be achieved. The invention not only provides the detection mechanism for accessing the dynamic random access memory during the initial activation of the computer system, but also determines the voltages required by the memory module for the computer system to enter various power saving modes.