HP dc7800 tower manual Power Management, Smart Cover Lock Optional, Acpi Wake-Up Events, Pme

Models: dc7800 tower

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System Support

Level 0—Cover removal indication is essentially disabled at this level. During POST, status bit is cleared and no other action is taken by BIOS.

Level 1—During POST the message “The computer's cover has been removed since the last system start up” is displayed and time stamp in CMOS is updated.

Level 2—During POST the “The computer's cover has been removed since the last system start up” message is displayed, time stamp in CMOS is updated, and the user is prompted for the administrator password. (A Setup password must be enabled in order to see this option).

Smart Cover Lock (Optional)

The SFF and CMT systems support an optional solenoid-operated locking bar that, when activated, prevents the cover (hood) from being removed. The GPIO ports 44 and 45 of the SIO controller provide the lock and unlock signals to the solenoid. A locked hood may be bypassed by removing special screws that hold the locking mechanism in place. The special screws are removed with the Smart Cover Lock Failsafe Key.

4.5.2 Power Management

These systems provide baseline hardware support of ACPI- and APM-compliant firmware and software. Key power-consuming components (processor, chipset, I/O controller, and fan) can be placed into a reduced power mode either automatically or by user control. The system can then be brought back up (“wake-up”) by events defined by the ACPI 2.0 specification. The ACPI wake-up events supported by this system are listed as follows:

Table 4-7.

ACPI Wake-Up Events

ACPI Wake-Up Event

System Wakes From

 

 

Power Button

Suspend or soft-off

 

 

RTC Alarm

Suspend or soft-off

 

 

Wake On LAN (w/NIC)

Suspend or soft-off

 

 

PME

Suspend or soft-off

 

 

Serial Port Ring

Suspend or soft-off

 

 

USB

Suspend only

 

 

Keyboard

Suspend only

 

 

Mouse

Suspend only

 

 

 

4-12

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Technical Reference Guide

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HP dc7800 tower Power Management, Smart Cover Lock Optional, Acpi Wake-Up Events, Acpi Wake-Up Event System Wakes From

dc7800 tower specifications

The HP dc7800 Tower is a powerful desktop computer designed for professional and enterprise environments. Known for its stability, performance, and versatility, this model has secured its place in a variety of business settings. Launched in the mid-2000s, it embodies HP’s commitment to quality and innovation.

One of the main features of the HP dc7800 is its form factor. The tower configuration allows for easy upgrades and maintenance, providing ample space for additional hard drives, memory, and other components. This level of accessibility makes it ideal for businesses that need to adapt their systems to changing requirements.

The dc7800 is powered by Intel's Core 2 Duo processors, offering dual-core technology that enhances multitasking capabilities. With clock speeds ranging from 1.8 GHz to 3.0 GHz, this system can handle demanding applications with relative ease. It also supports Intel's vPro technology, which allows for remote management and security features, making it an excellent choice for organizations prioritizing IT control.

Another notable characteristic is the support for up to 8GB of DDR2 RAM. This allows for efficient data processing and improved performance when running multiple applications simultaneously. Additionally, the dc7800 features multiple storage options, accommodating both SATA hard drives and solid-state drives, which can significantly enhance boot times and overall system responsiveness.

Connectivity options on the HP dc7800 are robust. It includes a variety of USB ports, audio jacks, and optional legacy ports, ensuring compatibility with a wide range of peripherals and accessories. Networking capabilities are also prominent, with built-in Gigabit Ethernet providing high-speed internet access.

Furthermore, the desktop tower is designed with energy efficiency in mind. It meets ENERGY STAR certification standards, which not only helps reduce operational costs but also minimizes environmental impact.

Overall, the HP dc7800 Tower embodies a blend of performance, expandability, and energy efficiency, making it a reliable choice for businesses in need of a robust desktop solution. With its legacy of dependability and its suite of modern technologies, it continues to serve as a valuable asset in enterprise environments.