ASUS P5P800-MX User Manual
![ASUS P5P800-MX Motherboard manual cover](/images/uSHmQtmcoHiBCdlAYnOoZAeX/thumbs/thumb175x175.webp)
To update the BIOS on the ASUS P5P800-MX, visit the ASUS support website, download the latest BIOS file, and use the ASUS EZ Flash utility within the BIOS setup to perform the update. Ensure that your computer is stable during the update to prevent any issues.
The ASUS P5P800-MX motherboard supports DDR (Double Data Rate) SDRAM with a maximum capacity of 2GB across two DIMM slots. The supported speeds include DDR 400/333/266 MHz.
If your ASUS P5P800-MX motherboard does not boot, check for loose connections, ensure the RAM is properly seated, clear the CMOS to reset BIOS settings, and verify that the power supply is functioning. If the issue persists, test with minimal hardware to identify potential faulty components.
To clear the CMOS on the ASUS P5P800-MX, turn off your PC, unplug the power cord, locate the CMOS jumper on the motherboard, move the jumper cap from pins 1-2 to 2-3 for a few seconds, then return it to the original position. Reconnect the power and turn on the PC.
Ensure that the SATA or IDE cables are securely connected to both the motherboard and hard drive. Check BIOS settings to ensure that the drive is recognized. If the issue persists, try a different cable or port, and verify the hard drive's functionality in another system.
The ASUS P5P800-MX motherboard does not have a PCIe slot; it only supports AGP (Accelerated Graphics Port) for external graphics. Ensure compatibility by selecting an AGP graphics card.
To improve cooling, ensure that your case has adequate airflow with well-positioned intake and exhaust fans. Consider upgrading the CPU cooler and applying a fresh layer of thermal paste. Clean dust from fans and heatsinks regularly to maintain optimal cooling performance.
Beep codes on the ASUS P5P800-MX indicate hardware issues. Common codes are: 1 short beep (system boot success), continuous beep (memory error), 1 long and 2 short beeps (video card error). Refer to the motherboard manual for a detailed list of beep codes.
The ASUS P5P800-MX supports RAID via the onboard Promise RAID controller. Enter the RAID configuration utility during boot by pressing the appropriate key (usually Ctrl+F or similar), and follow the prompts to create and manage RAID arrays. Ensure that the drives are connected to the correct controller ports.
The ASUS P5P800-MX motherboard supports Intel Pentium 4 and Celeron processors with LGA775 socket. The maximum supported CPU is the Intel Pentium 4 Extreme Edition, based on the motherboard's BIOS version. Refer to the ASUS CPU support list for specific model compatibility.