User manual ASUS P4C800

[. . . ] 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. SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT. Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners' benefit, without intent to infringe. ii Contents Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] ATX power connectors (20-pin ATXPWR1, 4-pin ATX12V1) These connectors are for the ATX power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. In addition to the 20-pin ATXPWR connector, this motherboard requires that you connect the 4-pin ATX +12V power plug to provide sufficient power to the CPU. Make sure that your ATX 12V power supply can provide 8A on the +12V lead and at least 1A on the +5-volt standby lead (+5VSB). The minimum recommended wattage is 230W, or 300W for a fully configured system. The system may become unstable and may experience difficulty powering up if the power supply is inadequate. ATX12V1 +12V DC GND ATXPWR1 +12. 0VDC +5VSB PWR_OK COM +5. 0VDC COM +5. 0VDC COM +3. 3VDC +3. 3VDC +5. 0VDC +5. 0VDC -5. 0VDC COM COM COM PS_ON# COM -12. 0VDC +3. 3VDC P4C800 +12V DC GND P4C800 ATX Power Connector 4. Internal audio connectors (4-pin CD1, AUX1) These connectors allow you to receive stereo audio input from sound sources such as a optical drive, TV tuner, or MPEG card. CD(Black) AUX(White) P4C800 Right Audio Channel Ground Ground Left Audio Channel P4C800 Internal Audio Connectors ASUS P4C800 motherboard user guide 1-19 5. TV out connector (6-1 pin U38) This connect is for a front or rear panel I/O board with an audio TV-out port. TV_OUT1 1 P4C800 ASUS AV/S P4C800 TV Out Connector The ASUS AV/S module is purchased separately. 6. CPU and chassis fan connectors (3-pin CPU_FAN1, CHA_FAN1) The fan connectors support cooling fans of 350mA~740mA (8. 88W max. ) or a total of 1A~2. 22A (26. 64W max. ) at +12V. Connect the fan cables to the fan connectors on the motherboard, making sure that the black wire of each cable matches the ground pin of the connector. Do not forget to connect the fan cables to the fan connectors. Lack of sufficient air flow within the system may damage the motherboard components. ASUS EZ Flash (Updates the BIOS using a floppy disk during POST. ) 3. ASUS CrashFree BIOS 2 (Updates the BIOS using a bootable floppy disk or the support CD when the BIOS gets corrupted. ) 4. ASUS Update (Updates the BIOS in Windows® environment. ) Refer to the corresponding section for each utility. Important notes · It is recommended that you save a copy of the original motherboard BIOS file to a bootable floppy disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the AFUDOS or the ASUS Update utilities. A working BIOS file for this motherboard is in the support CD. Use this file only when you do not have a copy of the original motherboard BIOS file in a floppy disk. Visit the ASUS website and download the latest BIOS file for this motherboard using the ASUS Update utility. · · 2. 1. 1 Creating a bootable floppy disk 1. Do either one of the following to create a bootable floppy disk. DOS environment Insert a 1. 44 MB floppy disk into the drive. At the DOS prompt, type: format A:/S then press <Enter>. From your Windows desktop, click on Start, point to Settings, then click on Control Panel. [. . . ] The User Password item now shows Installed. To change the user password, follow the same steps as in setting a user password. Clear User Password Select this item if you wish to clear the user password. Password Check [Setup] When set to [Setup], BIOS checks for user password when accessing the Setup utility. When set to [Always], BIOS checks for user password both when accessing Setup and booting the system. Configuration options: [Setup] [Always] ASUS P4C800 motherboard user guide 2-25 2. 7 Exit menu The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items. Exit Options Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults Exit system setup after saving the changes. [. . . ]