User manual ABIT IS-10 11 12 20 A5 V101

[. . . ] IS-10/IS-11/IS-12/IS-20 Intel Pentium 4 System Board Socket 478 User's Manual 4200-0383-03 Rev. 1. 01 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. [. . . ] [On]: The numeric keypad functions as number keys. [Off]: The numeric keypad functions as arrow keys. Security Option This item determines when the system will prompt for password - every time the system boots or only when enters the BIOS setup. [Setup]: The password is required only when accessing the BIOS Setup. [System]: The password is required each time the computer boots up. If you forget the password, you will have to open the computer case and clear all information in the CMOS before you can start up the system. But by doing this, you will have to reset all previously set options. MPS Version Control For OS This item specifies which version of MPS (Multi-Processor Specification) this motherboard will use. Intel OnScreen Branding This item determines whether to display the "Intel Inside" logo or not at system boots up. User's Manual 3-8 Chapter 3 3. 3. Advanced Chipset Features DRAM Timing Selectable This item sets the optimal timings for the following four items, depending on the memory module you are using. The default setting "By SPD" configures these four items by reading the contents in the SPD (Serial Presence Detect) device. The EEPROM on the memory module stores critical parameter information about the module, such as memory type, size, speed, voltage interface, and module banks. CAS Latency Time This item controls the latency between the DRAM read command and the time that the data becomes actually available. to Precharge Delay This item controls the number of DRAM clocks used for the DRAM parameters. DRAM RAS# to CAS# Delay This item controls the latency between the DRAM active command and the read/write command. DRAM RAS# Precharge This item controls the idle clocks after issuing a precharge command to the DRAM. IS-10 / IS-11 / IS-12 / IS-20 BIOS Setup AGP Aperture Size 3-9 This option specifies the amount of system memory that can be used by the AGP device. The aperture is a portion of the PCI memory address range dedicated for graphics memory address space. Init Display First This item selects to initialize Onboard/AGP or PCI Slot first when the system boots. On-Chip VGA This option enables or disables the on-chip VGA controller. Frame Buffer Size This option selects the size of on-chip frame buffer. User's Manual 3-10 Chapter 3 3. 4. Integrated Peripherals Onboard IDE Device: Click <Enter> key to enter its submenu: IS-10 / IS-11 / IS-12 / IS-20 BIOS Setup IDE Bus Master 3-11 This option enables or disables the IDE bus mastering capability under the DOS environment. Onboard IDE-1 Controller This item enables or disables the onboard IDE-1 controller. [. . . ] Please understand that we are selling through distribution channels and don't have the resources to serve every end-user. However, we will try to do our best to help every customer. 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. [. . . ]