ASUS P9X79 LE User Manual
![ASUS P9X79 LE Motherboard manual cover](/images/ThdmSargjYvERbYKvmzLADHc/thumbs/thumb175x175.webp)
To update the BIOS, download the latest BIOS file from the ASUS support website. Copy the file to a USB drive. Enter the BIOS setup by pressing 'Del' during startup, then use the EZ Flash utility to select the BIOS file from the USB drive and update.
Check the power supply connections to the motherboard, ensure the power switch on the PSU is turned on, verify that the power button connector is properly connected to the motherboard, and test with a different power supply if possible.
To reset the CMOS, turn off the computer and unplug the power cord. Locate the CMOS battery on the motherboard and remove it for a few minutes before reinserting it. Alternatively, use the CLRTC jumper to reset the BIOS settings.
The ASUS P9X79 LE motherboard supports DDR3 memory modules with speeds of 1066/1333/1600/1866/2133/2400 MHz, and it can handle up to 64GB of RAM across its eight DIMM slots.
Ensure that the case has good airflow by organizing cables and adding additional fans if necessary. Consider upgrading the CPU cooler and applying fresh thermal paste. Regularly clean dust from fans and heatsinks.
Check the SATA connections and ensure the SSD is connected to a SATA III port. Enter the BIOS and confirm that the SATA mode is set to AHCI. Also, verify that the SSD is not disabled in the BIOS boot menu.
The ASUS P9X79 LE motherboard does not have native NVMe support. However, you can use a PCIe adapter card to install an NVMe SSD, but booting from it may not be supported without a BIOS update or modification.
Enter the BIOS setup by pressing 'Del' during startup. Navigate to the 'Advanced' tab, find 'CPU Configuration,' and enable 'Intel Virtualization Technology.' Save changes and exit the BIOS.
First, reseat the RAM modules and ensure they are properly installed. Test each module individually to identify a faulty stick. Use the correct DIMM slots as per the manual for your configuration.
Ensure that the audio drivers are up to date by downloading them from the ASUS support site. Check that the correct audio output device is selected in the OS settings and that cables are properly connected.