[. . . ] ® CUV4X-D JumperFreeTM PC133/VC133 133MHz FSB AGP Pro/4X Dual Socket 370 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. [. . . ] Use <PgUp> and <PgDn> or the up and down arrow keys to scroll through the entire help document. Press <Home> to display the first page, press <End> to go to the last page. To exit the help window, press <Enter> or <Esc>. Sub-Menu Note that a right pointer symbol (as shown in the left view) appears to the left of certain fields. This pointer indicates that you can display a sub-menu from this field. To display a sub-menu, move the highlight to the field and press <Enter>. Use the legend keys to enter values and move from field to field within a sub-menu as you would within a menu. Take some time to familiarize yourself with the legend keys and their corresponding functions. If you accidentally make unwanted changes to any of the fields, use the set default hot key <F5> to load the Setup default values. While moving around through the Setup program, note that explanations appear in the Item Specific Help window located to the right of each menu. This window displays the help text for the currently highlighted field. NOTE: The item heading in square brackets represents the default setting for that field. ASUS CUV4X-D User's Manual 47 4. BIOS SETUP 4. 3 Main Menu When you enter the Setup program, the following screen appears: System Time [XX:XX:XX] Sets the system to the time that you specify (usually the current time). Valid values for hour, minute and second are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use the <Tab> or <Shift> + <Tab> keys to move between the hour, minute, and second fields. System Date [XX/XX/XXXX] Sets the system to the date that you specify (usually the current date). Valid values for month, day, and year are Month: (1 to 12), Day: (1 to 31), Year: (100 year range). Use the <Tab> or <Shift> + <Tab> keys to move between the month, day, and year fields. Legacy Diskette A [1. 44M, 3. 5 in. ], Legacy Diskette B [None] Sets the type of floppy drives installed. Configuration options: [None] [360K, 5. 25 in. ] [1. 2M , 5. 25 in. ] [720K , 3. 5 in. ] [1. 44M, 3. 5 in. ] [2. 88M, 3. 5 in. ] Floppy 3 Mode Support [Disabled] This is required to support older Japanese floppy drives. The Floppy 3 Mode feature allows reading and writing of 1. 2MB (as opposed to 1. 44MB) on a 3. 5-inch diskette. BIOS SETUP 4. 3. 1 Primary & Secondary Master/Slave Type [Auto] Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection is successful, Setup automatically fills in the correct values for the remaining fields on this sub-menu. [. . . ] SDRAM takes memory access away from the CPU's control; internal registers in the chips accept the request, and let the CPU do something else while the data requested is assembled for the next time the CPU talks to the memory. As they work on their own clock cycle, the rest of the system can be clocked faster. There is a version optimized for video cards, and main memory for motherboards. SPD for SDRAM module Serial Presence Detect (SPD) is most like an ID detect for SDRAM module, it using a EEPROM component on DIMM module for storing module configuration information inside. [. . . ]