User manual ABIT BG-72

[. . . ] BG-72 Intel Pentium 4 System Board Socket 478 User's Manual Rev. 1. 00 Copyright and Warranty Notice The information in this document is subject to change without notice and does not represent a commitment on part of the vendor, who assumes no liability or responsibility for any errors that may appear in this manual. No warranty or representation, either expressed or implied, is made with respect to the quality, accuracy or fitness for any particular part of this document. In no event shall the manufacturer be liable for direct, indirect, special, incidental or consequential damages arising from any defect or error in this manual or product. [. . . ] Delayed Transaction The chipset has an embedded 32-bit posted write buffer to support delayed transaction cycles. Enable this item to support compliance with PCI specification version 2. 1. AGP Aperture Size (MB) This item defines the size of the aperture if you use an AGP graphics adapter. The AGP aperture refers to a section of the PCI memory address range used for graphics memory. We recommend that you leave this item at the default value. AGP Data Transfer Rate You can select the AGP device data transfer rate capability. BG-72 BIOS Setup 3-15 On-Chip Video Window Size This allows you to set the Graphics Aperture size. On-Chip Frame Buffer Size This allows you to set the VGA frame buffer size. Boot Display This item is for Intel define ADD card only. User's Manual 3-16 Chapter 3 3. 2. 4. Integrated Peripherals These options display items that define the operation of peripheral components on the system's input/output ports. Onboard IDE-1 Controller /IDE2 Controller This item enables or disables the onboard IDE-1/IDE2 controller. Master/Slave Drive PIO Mode Each IDE channel supports a master device and a slave device. These four items let you assign which kind of PIO (Programmed Input/Output) is used by IDE devices. Choose Auto to let the system auto detect which PIO mode is best, or select a PIO mode from 0-4. BG-72 BIOS Setup !Master/Slave Drive Ultra DMA 3-17 Each IDE channel supports a master device and a slave device. This motherboard supports Ultra DMA technology, which provides faster access to IDE devices. If you install a device that supports Ultra DMA, change the appropriate item on this list to Auto. You may have to install the Ultra DMA driver supplied with this motherboard in order to use an Ultra DMA device. USB Controller This option enables or disables the USB controller. USB 2. 0 Controller This option enables or disables the USB 2. 0 controller. USB Keyboard Support Via This item allows you to select [BIOS] for using USB keyboard in DOS environment, or [OS] in OS environment. USB Mouse Support Via This item allows you to select [BIOS] for using USB mouse in DOS environment, or [OS] in OS environment. AC97 Audio Enables or disables the onboard AC97 audio function. Disable this item if you are going to install a PCI audio add-on card. Onboard LAN Device Enables and disables the onboard LAN chip. [. . . ] Please also remember that for many of our technical support team English is a second language, you will have a better chance of getting a helpful answer if your question can be understood in the first place. Be sure to use very, simple, concise language that clearly states the problem, avoid rambling or flowery language and always list your system components. Here is the contact information for our branch offices: 6. 7. If your system has been working but it just stopped, but you have not installed any new software or hardware recently, it is likely that you have a defective component. [. . . ]