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Troubleshooting

Dell™ OptiPlex™ 760 Service Manual

Tools

Dell Diagnostics

Solving Problems

Dell Technical Update Service

WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on www.dell.com at www.dell.com/regulatory_compliance.

WARNING: Always unplug your computer from the electrical outlet before opening the cover.

Tools

Power Lights

The power button light located on the front of the computer illuminates and blinks or remains solid to indicate different states:

If the power light is green and the computer is not responding, see Diagnostic Lights.

If the power light is blinking green, the computer is in standby mode. Press a key on the keyboard, move the mouse, or press the power button to resume normal operation.

If the power light is off, the computer is either turned off or is not receiving power.

¡Reseat the power cable into both the power connector on the back of the computer and the electrical outlet.

¡If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and that the power strip is turned on.

¡Bypass power protection devices, power strips, and power extension cables to verify that the computer turns on properly.

¡Ensure that the electrical outlet is working by testing it with another device, such as a lamp.

¡Ensure that the main power cable and front panel cable are securely connected to the system board. See the following:

¡Mini Tower — System Board Components

¡Desktop — System Board Components

¡Small Form Factor — System Board Components

¡Ultra Small Form Factor — System Board Components

If the power light is blinking amber, the computer is receiving electrical power, but an internal power problem may exist.

¡Ensure that the voltage selection switch is set to match the AC power at your location, if applicable.

¡Ensure that the processor power cable is securely connected to the system board. See the following:

¡Mini Tower — System Board Components

¡Desktop — System Board Components

¡Small Form Factor — System Board Components

¡Ultra Small Form Factor — System Board Components

If the power light is steady amber, a device may be malfunctioning or incorrectly installed.

¡Remove and then reinstall the memory modules (see Memory).

¡Remove and then reinstall any cards. See the following:

¡Mini Tower — Cards

¡Desktop — Cards

¡Small Form Factor — Cards

Eliminate interference. Some possible causes of interference are:

¡Power, keyboard, and mouse extension cables

¡Too many devices on a power strip

¡Multiple power strips connected to the same electrical outlet

Diagnostic Lights

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Dell 760 manual Troubleshooting, Tools, Power Lights, Diagnostic Lights

760 specifications

The Dell OptiPlex 760 is a highly regarded desktop computer that caters primarily to business environments. Released as part of Dell’s OptiPlex series, the 760 is designed for efficiency, reliability, and performance, making it a suitable choice for organizations looking for a dependable workstation.

One of the standout features of the Dell 760 is its versatility in form factor. It is available in mini-tower, desktop, and ultra-small form factor configurations, offering options that can fit various workspace requirements. This adaptability ensures that businesses can tailor their desktop setup based on space constraints or specific usage scenarios.

Powering the Dell 760 is an Intel Core 2 Duo processor, which provides a competent level of performance for typical office applications, multitasking, and data processing tasks. The system supports a wide range of processors, with options available for both dual-core and quad-core configurations, delivering the necessary horsepower for demanding applications.

In terms of memory, the OptiPlex 760 supports up to 8GB of DDR2 RAM, allowing for adequate multitasking capabilities. The inclusion of ample RAM helps improve the overall responsiveness of the system, making it perfect for business applications that require quick access to data and smooth operation.

Storage options on the Dell 760 include various hard drive capacities, ranging from 160GB to 500GB SATA HDDs. Additionally, the system can accommodate SSD upgrades for those seeking faster boot times and enhanced data access speeds, further improving efficiency in work environments.

Connectivity is another area where the Dell 760 excels. The desktop features a range of ports, including USB 2.0, VGA, and optional DisplayPort outputs, enabling users to connect multiple peripherals and displays easily. Integrated Ethernet allows for seamless network connections, which is crucial for businesses that rely on online connectivity and network sharing.

Another important characteristic of the Dell 760 is its energy efficiency. The system is designed to meet ENERGY STAR certification, making it a responsible choice for businesses looking to reduce their environmental impact and operating costs. This focus on sustainability aligns with modern corporate values, making the Dell 760 a forward-thinking solution.

In summary, the Dell OptiPlex 760 stands out as a reliable and efficient desktop solution for business use. With its range of form factors, powerful Intel processors, ample memory and storage options, extensive connectivity, and energy-efficient design, it remains a solid choice for organizations aiming to enhance their productivity while maintaining cost-effectiveness.