Dell 780 service manual Jumper Settings, Clearing Forgotten Passwords, Jumper Setting Description

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To change an existing administrator password, you must know the administrator password.

1.Enter system setup (see Entering System Setup).

2.Type the administrator password at the prompt.

3.Highlight Admin Password and press the left- or right-arrow key to delete the existing administrator password.

The setting changes to Not Set.

To assign a new administrator password, perform the steps in Assigning an Administrator Password.

4. Exit system setup.

Disabling a Forgotten Password and Setting a New Password

To reset system and/or administrator passwords, see Clearing Forgotten Passwords.

Jumper Settings

Jumper Setting

Description

PSWD

Password features are enabled (default setting).

 

Password features are disabled.

RTCRST

The real-time clock has not been reset.

 

The real-time clock is being reset (jumpered temporarily).

jumpered

unjumpered

 

 

Clearing Forgotten Passwords

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 at www.dell.com/regulatory_compliance.

CAUTION: This process erases both the system and administrator passwords.

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Contents Rev. A01 Working on Your Computer Before Working Inside Your ComputerWindows Vista Turning Off Your ComputerAfter Working Inside Your Computer Windows XP Click Start Turn Off Computer Turn OffRemoving and Replacing Parts Specifications Power External ConnectorsSystem Board Connectors DrivesEnvironmental System Board Layout System Setup Entering System SetupOverview System Setup Options COM1 COM3 Disable PS/2 defaultECP No DMA Front USB Rear Dual USB Rear Quad USB PCI slots AudioPower Off default Deactivate default Activate ClearDeactivate default Disable Activate Power OnImage Server Static IPBoot Sequence Enable F12 = Boot menu enabled by defaultClear Log Mark all Entries Booting to a USB Device Password ProtectionAssigning a System Password If Password Status is set to LockedAdministrator Password Jumper Settings Clearing Forgotten PasswordsJumper Setting Description Clearing Cmos Settings Page Diagnostics Dell DiagnosticsOption Function Power Button Light CodesPower Light State Off Blinking Amber Solid Description Tab FunctionBeep Codes Amber Blinking Green SolidCode Cause Diagnostic Lights Light Pattern Problem Description Suggested ResolutionStarts normally, troubleshoot the last card removed from Cover Removing the CoverReplacing the Cover Cover Replacing the Cover Drive Cage Removing the Drive CagePage Page Replacing the Drive Cage Optical Drive Removing the Optical DriveReplacing the Optical Drive Wireless Local Area Network Wlan Card Removing the Wlan CardPage Replacing the Wlan Card System Fan Removing the System FanPage Replacing the System Fan Heat Sink and Processor Removing the Heat Sink and ProcessorPage Page Replacing the Heat Sink and Processor Intrusion Switch Removing the Intrusion SwitchReplacing the Intrusion Switch Coin-Cell Battery Removing the Coin-Cell BatteryReplacing the Coin-Cell Battery System Board Removing the System BoardPage Page Replacing the System Board Front Bezel Removing the Front BezelReplacing the Front Bezel Hard Drive Removing the Hard DriveReplacing the Hard Drive Control Panel Removing the Control PanelPage Replacing the Control Panel Internal Antenna Cable Removing the Internal Antenna CablePage Replacing the Internal Antenna Cable Internal Speaker Removing the Internal SpeakerReplacing the Internal Speaker Memory Removing the Memory ModulesReplacing the Memory Modules Panel Removing the I/O PanelPage Replacing the I/O Panel Power Supply Removing the Power SupplyPage Replacing the Power Supply
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780 specifications

The Dell OptiPlex 780 is a versatile desktop computer that stands out for its reliability, performance, and energy efficiency, making it an ideal choice for businesses and individuals alike. Launched as part of Dell's OptiPlex series, the 780 caters to a wide range of computing needs, from basic office tasks to more demanding applications.

One of the most notable features of the Dell 780 is its powerful performance. It is equipped with Intel's Core 2 Duo processors, which deliver reliable multitasking capability and responsiveness. With options for up to 8GB of DDR3 RAM, users can expect smooth operation when running various applications simultaneously. This makes the OptiPlex 780 suitable for environments where productivity is essential.

In terms of connectivity, the Dell 780 is built with a variety of ports, including USB 2.0 and USB 3.0, ensuring compatibility with numerous peripherals and devices. Additionally, it offers audio jacks, a serial port, and VGA, DisplayPort, or DVI outputs, allowing users to connect to multiple displays or integrate with legacy systems.

The Dell 780 incorporates several technologies focused on security and management, making it a reliable choice for businesses. The built-in Trusted Platform Module (TPM) enhances data protection by enabling hardware-based encryption, while the chassis lock feature provides physical security against unauthorized access. Furthermore, with remote management capabilities, IT administrators can efficiently monitor and maintain the system, reducing downtime and simplifying support tasks.

Energy efficiency is another key characteristic of the Dell OptiPlex 780. It is designed to meet Energy Star certification requirements, which signifies that it consumes less power compared to traditional desktop computers. This not only contributes to lower utility bills but also aligns with environmentally responsible practices, making it a compelling option for organizations aiming to reduce their carbon footprint.

The unit’s compact design and choice of form factors—mini-tower, desktop, and small form factor—allow it to fit seamlessly into various office environments. The easy-to-access internal components further facilitate upgrades and maintenance, providing flexibility for future enhancements.

Overall, the Dell OptiPlex 780 combines robust performance, extensive connectivity options, advanced security features, and energy efficiency, making it an exceptional choice for a diverse range of users. Whether in a corporate setting or at home, it continues to deliver dependable performance that meets the demands of modern computing.