Dell OptiPlex 790 Small Owner's Manual

Dell OptiPlex 790 Small Desktop manual cover
Pages 96
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Dell OptiPlex 790 Small Desktop Specification

The Dell OptiPlex 790 Small Desktop is engineered to deliver robust performance and versatile management capabilities, making it ideal for business environments. This model is powered by Intel's second-generation Core processors, providing efficient computing performance for multitasking and demanding applications. The system supports up to 16 GB of DDR3 SDRAM, ensuring smooth operation and quick access to frequently used programs and files. Storage options are versatile, with capacities reaching up to 1TB HDD, offering ample space for data storage and retrieval.

Connectivity features include integrated Intel HD graphics, which provide satisfactory visual performance for everyday tasks, while multiple video outputs, such as VGA and DisplayPort, support dual-monitor setups. Networking capabilities are enhanced by an integrated Intel Gigabit Ethernet controller, ensuring high-speed wired connectivity. The OptiPlex 790 includes several USB 2.0 ports for peripheral connectivity, as well as audio jacks for headphones and microphones.

The desktop is equipped with a Trusted Platform Module (TPM) for enhanced security, providing hardware-based encryption to protect sensitive data. The system's design emphasizes ease of maintenance and upgradeability, with a tool-less chassis that allows for quick access to internal components. This facilitates straightforward hardware upgrades and servicing, minimizing downtime and maintenance costs.

The OptiPlex 790 is also energy efficient, adhering to ENERGY STAR 5.0 and EPEAT Gold standards, which help reduce energy consumption and environmental impact. Dell's suite of management tools, including the Dell Client Manager, allows IT administrators to efficiently deploy, monitor, and update systems across a network, enhancing overall productivity and reducing the total cost of ownership. This desktop offers a balance of performance, manageability, and energy efficiency, tailored to meet the needs of modern business operations.

Dell OptiPlex 790 Small Desktop F.A.Q.

How can I upgrade the RAM in my Dell OptiPlex 790 Small Desktop?

To upgrade the RAM in your Dell OptiPlex 790, first ensure the desktop is powered off and unplugged. Open the case by removing the side panel screws. Locate the RAM slots on the motherboard, release the clips on either side of the existing RAM, and gently remove it. Insert the new RAM modules, ensuring they are properly aligned and secured by the clips. Close the case, plug in the desktop, and power it on to check if the system recognizes the new RAM.

What should I do if my OptiPlex 790 is not powering on?

First, check that the power cable is securely connected to both the desktop and the power outlet. Try a different power outlet or cable if possible. Ensure the power button is not stuck. If the desktop still does not power on, open the case and check for any loose connections, particularly the power supply cables. If the problem persists, consider testing with a known working power supply or contacting Dell support for further assistance.

How do I reset the BIOS password on my Dell OptiPlex 790?

To reset the BIOS password, power off the desktop and unplug it. Open the case and locate the CMOS battery on the motherboard. Remove the battery and wait for about 5 minutes. Reinsert the battery, close the case, and power on the desktop. The BIOS password should now be cleared.

Why is my OptiPlex 790 overheating, and how can I fix it?

Overheating can occur due to dust buildup or inadequate ventilation. Check and clean the fans and heatsinks inside the case using compressed air. Ensure that the desktop is placed in a well-ventilated area. If the problem persists, consider reapplying thermal paste to the CPU or replacing faulty fans.

How can I update the BIOS on my Dell OptiPlex 790?

To update the BIOS, visit the Dell support website and download the latest BIOS update file for the OptiPlex 790. Save the file to your desktop. Run the executable file and follow the on-screen instructions to complete the update process. Ensure the desktop remains powered during the update to avoid any issues.

What should I do if my OptiPlex 790 won't boot past the Dell logo?

If the OptiPlex 790 is stuck at the Dell logo, try performing a hard reset by unplugging the power cord and holding the power button for 15 seconds. Reconnect the power and try booting again. If the problem persists, access the BIOS settings and check boot order priorities or perform a system diagnostics test to identify hardware issues.

Can I install a dedicated graphics card in my Dell OptiPlex 790 Small Desktop?

Yes, the OptiPlex 790 Small Desktop supports installing a low-profile PCIe x16 graphics card. Ensure that the power supply has enough wattage to support the new card. Remove the blanking plate from the expansion slot, insert the card, and secure it with screws. Install the necessary drivers once the system recognizes the new hardware.

How do I perform a factory reset on my Dell OptiPlex 790?

To perform a factory reset, restart the desktop and press F8 during boot to access the Advanced Boot Options menu. Select "Repair Your Computer," then "Dell Factory Image Restore." Follow the prompts to complete the reset process, which will restore the system to its original factory settings. Ensure to back up important data before proceeding.

Why is my OptiPlex 790 making a loud noise, and how can I fix it?

Loud noise can be caused by dust accumulation in the fans or a failing component. Open the case and clean all fans and vents with compressed air. Check for any loose components that might cause vibrations. If the noise persists, consider replacing the faulty fan or component.

How can I connect multiple monitors to my Dell OptiPlex 790?

To connect multiple monitors, ensure your graphics card supports dual outputs. Use the VGA and DisplayPort outputs on the back of the OptiPlex 790. Connect each monitor to a different output. Adjust display settings in your operating system to configure multiple displays and set up the desired arrangement.