Dell OptiPlex 390 Small Owner's Manual

Dell OptiPlex 390 Small Desktop manual cover
Pages 90
Year 0
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Dell OptiPlex 390 Small Desktop Specification

The Dell OptiPlex 390 Small Desktop is designed to offer a balance between performance and space efficiency, catering to the needs of business environments. This desktop is powered by Intel's second-generation Core i3, i5, or i7 processors, providing a range of options to suit different performance requirements. It supports up to 8GB of DDR3 SDRAM, allowing for efficient multitasking capabilities. Storage options include a SATA hard drive, with capacities ranging from 250GB to 1TB, ensuring ample space for business applications and data storage. The graphics are handled by integrated Intel HD Graphics, which supports multiple displays and offers sufficient performance for standard business applications.

Connectivity is robust with multiple USB 2.0 ports, a VGA port, and an optional HDMI or DisplayPort for enhanced video output. Networking is facilitated by an integrated Gigabit Ethernet controller, ensuring reliable and fast network access. The OptiPlex 390 also features optional Wi-Fi connectivity for environments where wired connections are not feasible. The chassis is designed for easy access to components, simplifying upgrades and maintenance, and includes a standard optical drive for additional media handling capabilities.

Security features include support for Trusted Platform Module (TPM) and optional Dell Data Protection, offering enhanced data security. The compact form factor of the OptiPlex 390 Small Desktop allows it to fit comfortably in various office settings while minimizing desk clutter. This model runs on Windows operating systems, offering a familiar interface for users. Overall, the Dell OptiPlex 390 Small Desktop is a reliable choice for businesses seeking a cost-effective and efficient computing solution.

Dell OptiPlex 390 Small Desktop F.A.Q.

How do I upgrade the RAM in my Dell OptiPlex 390 Small Desktop?

To upgrade the RAM, first power off the desktop and unplug all cables. Open the side panel by removing the screws at the back. Locate the RAM slots on the motherboard, release the clips on either side of the current RAM stick, remove it, and insert the new RAM module by aligning it with the slot and pressing down until it clicks into place.

What should I do if my Dell OptiPlex 390 won't boot?

Check the power cable connection and ensure the power button cable is securely attached inside the case. Listen for any beep codes that might indicate hardware issues. If necessary, reseat the RAM and check the hard drive connection. Performing a power drain by unplugging and holding the power button for 30 seconds can also help.

How can I clean the internal components of my Dell OptiPlex 390?

Turn off the computer and unplug it. Open the side panel and use compressed air to gently blow dust off components, including fans, heatsinks, and the motherboard. Avoid touching components directly to prevent static damage. Ensure the area is well-ventilated to avoid inhaling dust particles.

What are the BIOS settings available for optimizing performance on a Dell OptiPlex 390?

To access BIOS settings, restart the computer and press F2 during the boot process. In BIOS, you can adjust settings such as boot order, enable virtualization, and configure power management options to optimize performance according to your needs. Be cautious when changing settings to avoid system instability.

How can I reset the BIOS password on my Dell OptiPlex 390?

To reset the BIOS password, power off and unplug the desktop. Open the side panel and locate the password reset jumper on the motherboard. Move the jumper to the reset position, wait a few seconds, and return it to its original position. This will clear the BIOS password.

What is the maximum supported RAM for the Dell OptiPlex 390 Small Desktop?

The Dell OptiPlex 390 Small Desktop supports a maximum of 8GB of DDR3 RAM. It has two DIMM slots, each supporting up to 4GB RAM. Make sure to use compatible RAM sticks to ensure optimal performance.

How do I replace the power supply unit (PSU) in a Dell OptiPlex 390?

To replace the PSU, first unplug the desktop and remove the side panel. Disconnect all power cables from components and the motherboard. Unscrew the PSU from the case and slide it out. Install the new PSU, secure it with screws, and reconnect all power cables. Ensure compatibility with the form factor and power requirements.

What should I do if my Dell OptiPlex 390 is overheating?

Ensure that the air vents are not blocked and clean any dust buildup inside the case with compressed air. Check that the fans are functioning properly. You may also want to reapply thermal paste on the CPU if it's old, and ensure the computer is situated in a well-ventilated area.

How can I connect dual monitors to my Dell OptiPlex 390?

Ensure your OptiPlex 390 has two video output ports such as VGA and DVI or HDMI. Connect each monitor to a separate port. Once connected, go to display settings on your operating system to configure the dual monitor setup and extend or duplicate the desktop display as needed.

What are the common troubleshooting steps for USB port issues on the Dell OptiPlex 390?

Check if the USB device is functional by testing it on another computer. Try different USB ports on the OptiPlex 390. Ensure USB drivers are up to date via Device Manager. If the issue persists, inspect the internal USB connections to the motherboard and consider resetting the BIOS to default settings.