Instructions for the Asus P4S8X-X

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Instructions for the Asus P4S8X-X
The Asus P4S8X-X motherboard supports Intel Pentium 4 processors. (motherboard image by dinostock from

The Asus P4S8X-X is a computer motherboard that supports the Intel Pentium 4 processor. It comes with Asus EZ Flash, which allows you to update BIOS before entering the operating system. It also comes with CrashFree BIOS 2, which allows you to restore corrupted BIOS data from a recovery CD or floppy diskette. You can install the Asus motherboard on a chassis, install a CPU on the motherboard and update the BIOS.

Skill level:
Moderately Easy

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  1. 1

    Check that your motherboard will fit inside your chassis before installing it. Place the motherboard into the chassis in the correct orientation, where the edge with external ports faces the rear part of the chassis. Secure the motherboard using 10 screws placed into the holes of the motherboard.

  2. 2

    Locate the 478-pin ZIF socket on the Asus motherboard. Press the lever sideways to unlock the socket and lift it up to a 90 to 100 degree angle. Position the CPU above the socket so that the corner with a gold mark on the CPU matches the socket lever base. Insert the CPU carefully into the socket until it fits in place and secure the CPU by pushing down the socket lever. The lever indicates that it is locked when it clicks on the side tab. Install the heat sink and fan of the CPU and connect the fan cable of the CPU to the CPU_FAN connector on the motherboard.

  3. 3

    Download the latest BIOS update file from the ASUS website and save it to a floppy disk (see Resources). Reboot the computer and use EZ Flash by pressing "Alt" and "F2" together during POST. Insert the disk containing the BIOS update into your floppy drive. Type in the file name of the BIOS you downloaded when the computer prompts you to and press "Enter." Press "Y" to continue with the update process and type "Y" to update the main BIOS. Reboot the system by pressing any key.

Tips and warnings

  • Do not overtighten the screws when installing the motherboard because doing so may damage the unit.

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