User manual ABIT VA-20

[. . . ] AMD AthlonTM XP / AthlonTM / DuronTM Socket 462 System Board User's Manual VA-20 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. [. . . ] DRAM Command Rate (2T Command) This item enables you to specify the waiting time for the CPU to issue the next command after issuing the command to the DDR memory. Press <Esc> to return to the Advanced Chipset Features page. User's Manual 3-12 Chapter 3 AGP & P2P Bridge Control Scroll to this item and press <Enter> to view the following screen: AGP Aperture Size This setting controls just how much system RAM can be allocated to AGP for video purposes. The aperture is a portion of the PCI memory address range dedicated to graphics memory address space. Host cycles that hit the aperture range are forwarded to the AGP without any translation. AGP Mode (4X) Set this option to enable if you want the AGP bus to make use of the AGP 4X transfer protocol to boost the AGP bus bandwidth. If it is set to disabled, then the AGP bus is only allowed to use the AGP 1X or AGP 2X transfer protocol. AGP Driving Control (Auto) This item is used to signal driving current on AGP cards to auto or manual. Some AGP cards need stronger than normal driving current in order to operate. AGP Driving Value: When AGP Driving Control is set to Manual, use this item to set the AGP current driving value. VA-20 BIOS Setup 3-13 AGP Fast Write (Disabled) This item lets you enable or disable the caching of display data for the video memory of the processor. Disable this item if your graphics display card does not support this feature. AGP Master 1 WS Write: This item implements a single delay when writing to the AGP Bus. When set to [Enabled], two-wait states are used by the system, allowing for greater stability. AGP Master 1 WS Read: This item implements a single delay when reading to the AGP Bus. When set to [Enabled], two-wait states are used by the system, allowing for greater stability. AGP 3. 0 Calibration cycle Leave this item to its default [Enabled] setting to support AGP 3. 0 calibration cycle operations. VGA Share Memory Size (32M) This item allows you to select the shared memory size for VGA usage. System BIOS Cacheable (Disabled) When this item is enabled, the System BIOS will be cached for faster execution. Video RAM Cacheable (Disabled) When this is enabled, the Video RAM will be cached resulting to better performance. However, if any program was written to this memory area, this may result to system error. User's Manual 3-14 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. VIA OnChip IDE Device Scroll to this item and press <Enter> to view the following screen: VA-20 BIOS Setup 3-15 OnChip SATA (Enabled) This option allows you enable or disable the onboard Serial ATA device. On-Chip IDE Channel 0/1 (Enabled) Use these items to enable or disable the PCI IDE channels that are integrated on the motherboard. IDE Prefetch Mode (Enabled) The onboard IDE drive interfaces supports IDE prefetching, for faster drive access. If you install a primary and secondary add-in IDE interface, set this field to Disabled if the interface does not support prefetching. [. . . ] They should know best what your system configuration is and your problem. If you feel that you need to contact ABIT directly you can send email to the ABIT technical support department. First, please contact the support team for the branch office closest to you. They will be more familiar with local conditions and problems and will have better insight as to which resellers offer what products and services. [. . . ]