Advanced Onboard Devices | HP dc7800 tower

Table A-1Numeric Codes and Text Messages (continued)

Control panel message	Description	Recommended action

304-Keyboard or System Unit Error	Keyboard failure.	1.	Reconnect the keyboard with computer
			turned off.
		2.	Ensure that none of the keys are
			depressed.
		3.	Replace the keyboard.
		4.	Replace the system board.

404-Parallel Port Address Conflict Detected	Both external and internal ports are assigned	1.	Remove any parallel port expansion
	to parallel port X.		cards.
		2.	Clear CMOS. (See Appendix B,
			Password Security and Resetting
			CMOS on page 58.)
		3.	Reconfigure card resources and/or run
			Computer Setup.

410-Audio Interrupt Conflict	IRQ address conflicts with another device.	Enter Computer Setup and reset the IRQ in
		Advanced > Onboard Devices.

411-Network Interface Card Interrupt Conflict	IRQ address conflicts with another device.	Enter Computer Setup and reset the IRQ in
		Advanced > Onboard Devices.

501-Display Adapter Failure	Graphics display controller.	1.	Reseat the graphics card (if applicable).
		2.	Clear CMOS. (See Appendix B,
			Password Security and Resetting
			CMOS on page 58.)
		3.	Verify monitor is attached and turned
			on.
		4.	Replace the graphics card (if possible).

510-Flash Screen Image Corrupted	Flash Screen image has errors.	Reflash the system ROM with the latest BIOS
		image.

511-CPU, CPUA, or CPUB Fan not Detected	CPU fan is not connected or may have	1.	Reseat CPU fan.
	malfunctioned.	2.	Reseat fan cable.
		2.	Reseat fan cable.
		3.	Replace CPU fan.

512-Chassis, Rear Chassis, or Front Chassis Fan not Detected

Chassis, rear chassis, or front chassis fan is 1.	Reseat chassis, rear chassis, or front
not connected or may have malfunctioned.	chassis fan.

		2.	Reseat fan cable.
		3.	Replace chassis, rear chassis, or front
			chassis fan.

514-CPU or Chassis Fan not Detected	CPU or chassis fan is not connected or may	1.	Reseat CPU or chassis fan.
	have malfunctioned.	2.	Reseat fan cable.
		2.	Reseat fan cable.
		3.	Replace CPU or chassis fan.

601-Diskette Controller Error	Diskette controller circuitry or floppy drive	1.	Run Computer Setup.
	circuitry incorrect.	2.	Check and/or replace cables.
		2.	Check and/or replace cables.
		3.	Clear CMOS. (See Appendix B,
			Password Security and Resetting
			CMOS on page 58.)
		4.	Replace diskette drive.
		5.	Replace the system board.

ENWW	POST Numeric Codes and Text Messages 51

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.

HP dc7800 tower manual Advanced Onboard Devices

Models: dc7800 tower

Table A-1Numeric Codes and Text Messages (continued)

Control panel message

CMOS on page 58.)