ASUS ExpertCenter D9 Tower (D900TA) User Manual

To upgrade the RAM, first power off the system and unplug all cables. Open the side panel by removing screws at the back. Locate the RAM slots on the motherboard, release the clips on either side of the RAM module, and remove the existing RAM if necessary. Insert the new RAM module by aligning the notch with the slot and pressing down until the clips lock into place. Reassemble the side panel and reconnect all cables before powering on the system.

Start by checking if the power cable is securely connected to both the tower and the outlet. Ensure the outlet is working by testing with another device. Verify that the power supply switch at the back of the tower is turned on. If the issue persists, try resetting the power supply by toggling the switch off and on. If none of these steps work, consider checking the internal power connections or consulting a professional technician.

The ASUS ExpertCenter D9 Tower supports dual monitors through its available video ports. Connect each monitor to the tower using appropriate cables such as HDMI, DisplayPort, or VGA. Once connected, turn on both monitors and the computer. Go to Display Settings in Windows, where you can configure the display mode (duplicate, extend, etc.) and arrange the monitors as desired.

Regular maintenance includes cleaning the interior of dust every 3-6 months using compressed air, checking cable connections, ensuring that cooling fans are functioning properly, and updating system software and drivers. It's also advisable to perform regular backups and scans for malware to ensure optimal performance and security.

To reset the BIOS password, power off the computer and unplug it. Open the side panel and locate the CMOS battery on the motherboard. Remove the battery carefully and wait for about 5-10 minutes before reinserting it. This process will reset the BIOS settings, including the password. Close the panel and power on the computer.

Improving cooling efficiency can be achieved by ensuring that the tower is placed in a well-ventilated area, cleaning dust from fans and vents regularly, and considering additional cooling solutions such as installing extra case fans or upgrading to a more efficient CPU cooler if necessary.

Ensure the vents and fans are not blocked by dust or debris. Clean them with compressed air. Check if all fans are operating properly. Consider reapplying thermal paste to the CPU if overheating continues. It's also beneficial to monitor the system temperatures using software tools and to avoid placing the tower in confined spaces.

Yes, the tower supports additional storage drives. Open the side panel and locate the drive bays. You can install either 2.5-inch or 3.5-inch drives. Secure the drive in an appropriate bay using screws, and connect the SATA power and data cables from the power supply and motherboard. Close the panel and restart the computer to detect the new drive.

To perform a system recovery, restart your computer and press F9 during boot to access the recovery partition. Follow the on-screen instructions to restore the system to factory settings. Ensure you back up important data before proceeding, as this process will erase all data on the primary drive.

Ensure the device is properly connected and powered. Check if the device is compatible with your system. Update or reinstall the device drivers through the Device Manager. If the issue persists, try connecting the device to a different port or testing it on another computer to rule out hardware failure.