Error Messages and Codes

 

Table A-2. (Continued)

Power-On Self Test (POST) Messages

 

 

Error Message

Probable Cause

 

 

514-CPU or Chassis Fan not

CPU fan is not connected or may have malfunctioned.

detected.

 

 

 

601-Diskette Controller Error

Diskette drive removed since previous boot.

 

 

605-Diskette Drive Type Error

Mismatch in drive type.

 

 

912-Computer Cover Removed

Cover (hood) removal has been detected by the Smart Cover Sensor.

Since Last System Start Up

 

 

 

914-Hood Lock Coil is not

Smart Cover Lock mechanism is missing or not connected.

Connected

 

 

 

916-Power Button Not Connected

Power button harness has been detached or unseated from the system

 

board.

 

 

917-Expansion Riser Not Detected

Expansion (backplane) board not seated properly.

 

 

919-Front Panel, MultiPort, and/or

Riser card has been removed or has not been reinstalled properly in

MultiBay Risers not Detected

the system.

 

 

1156-Serial Port A Cable Not

Cable from serial port header to I/O connector is missing or not

Detected

connected properly.

 

 

1157-Front Cables Not Detected

Cable from front panel USB and audio connectors is missing or not

 

connected properly.

 

 

1720-SMART Hard Drive Detects

SMART circuitry on an IDE drive has detected possible equipment

Imminent Failure

failure.

 

 

1721-SMART SCSI Hard Drive

SMART circuitry on a SCSI drive has detected possible equipment

Detects Imminent Failure

failure.

 

 

1785-MultiBay incorrectly installed

For integrated MultiBay/ USDT systems:

 

MultiBay device not properly seated.

or

MultiBay riser not properly seated.

1794--Inaccessible device attached to SATA 1

(for systems with 2 SATA ports)

A device is attached to SATA 1. Any device attached to this connector will be inaccessible while “SATA Emulation” is set to “Combined IDE Controller” in Computer Setup.

1794-Inaccessible devices attached to SATA 1 and/or SATA 5 (for systems with 4 SATA ports)

A device is attached to SATA 1 and/or SATA 5.

Devices attached to these connectors will be inaccessible while “SATA Emulation” is set to “Combined IDE Controller” in Computer Setup

1796-SATA Cabling Error

One or more SATA devices are improperly attached. For optimal

 

performance, the SATA 0 and SATA 1 connectors must be used before

 

SATA 2 and SATA 3.

 

 

 

Technical Reference Guide

www.hp.com

A-3

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HP dc7800 tower manual Table A-2

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.