User manual ASUS A7V266-EX

[. . . ] ® A7V266-EX JumperFreeTM DDR DRAM 266MHz FSB AGP Pro/4X Socket A Motherboard USER'S MANUAL USER'S NOTICE No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. ASUS PROVIDES THIS MANUAL "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. [. . . ] If you did not set a Supervisor password, anyone can access the BIOS Setup program. If you did, the Supervisor password is required to enter the BIOS Setup program and to gain full access to the configuration fields. If you forget your password, you can clear it by erasing the CMOS Real Time Clock (RTC) RAM. The RAM data containing the password information is powered by the onboard button cell battery. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data. Halt On [All Errors] This field specifies the types of errors that will cause the system to halt. Configuration options: [All Errors] [No Error] [All but Keyboard] [All but Disk] [All but Disk/ Keyboard] Installed Memory [XXX MB] This field automatically displays the amount of conventional memory detected by the system during the boot process. ASUS A7V266-EX User's Manual 55 4. BIOS SETUP 4. 4 Advanced Menu CPU Speed [Manual] When the motherboard is set to JumperFreeTM mode, this field sets the internal frequency of your CPU. Note that selecting a frequency higher than the CPU manufacturer recommends may cause the system to hang or crash. BIOS SETUP Advanced Menu 56 CPU : System Frequency Multiple, (if CPU Speed set to [Manual]) This field is for unlocked processors only and will not be available to standard AMD processors. If the processor frequency multiple is detected as being locked, you cannot access this field. For unlocked processors, this field sets the frequency multiple between the CPU's internal frequency (CPU speed) and the external frequency. Set this field in conjunction with the System/ PCI Frequency (MHz) to match the speed of the CPU. Configuration options: [5x/14x] [5. 5x] [6. 0x]. . . [12. 0x] [12. 5x] System/PCI Frequency (MHz) (if CPU Speed set to [Manual]) This feature tells the clock generator what frequency to send to the system bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed. Configuration ranges from 100/33 to 227/57. ASUS A7V266-EX User's Manual 4. BIOS SETUP System/SDRAM Frequency Ratio [Auto] This field determines whether the memory clock frequency is set to be in synchronous or asynchronous mode with respect to the system frequency. The options that appear in the popup menu vary according to the System/ PCI Frequency (MHz). Configuration options: [Auto] [100:100] [100:133] Vcore [1. 775V] This field determines the range of core voltage available to the Central Processing Unit. Configuration options: [1. 850] [1. 825] [1. 800] [1. 775] [1. 750] CPU Level 1 Cache, CPU Level 2 Cache [Enabled] These fields allow you to choose from the default of [Enabled] or choose [Disabled] to turn on or off the CPU Level 1 and Level 2 built-in cache. Configuration options: [Disabled] [Enabled] CPU Level 2 Cache ECC Check [Disabled] This function controls the ECC capability in the CPU level 2 cache. Configuration options: [Disabled] [Enabled] BIOS Update [Enabled] This field functions as an update loader integrated into the BIOS to supply the processor with the required data. [. . . ] Compared to other storage media like magnetic tape, floppy disk, and hard disk, RAM has an extraordinarily fast access rate. RAM, however, is volatile, which means that the data stored in it are lost when the system power is turned off, or if power glitches occur. ROM (Read Only Memory) ROM is nonvolatile memory used to store permanent programs (called firmware) used in certain computer components. Flash ROM (or EEPROM) can be reprogrammed with new programs (or BIOS). [. . . ]