Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing).

Cause

Solution

 

 

 

Processor thermal protection activated:

1.

Ensure that the computer air vents are not blocked and

A fan may be blocked or not turning.

 

the processor cooling fan is running.

 

 

OR

2.

Open the rear cover, press the power button, and see if

 

the processor fan (or other system fan) spins. If the fan

The heat sink is not properly attached to the processor.

 

does not spin, make sure the fan cable is plugged onto

 

the system board header.

 

 

 

3.

If fan a plugged in and not spinning, replace it.

 

 

 

System does not power on and the LEDs on the front of the computer are not flashing.

Cause

Solution

System unable to power on.

Press and hold the power button for less than 4 seconds. If the hard drive LED turns white, then:

1.If equipped with a voltage selector, check that the voltage selector (located on the rear of the power supply) is set to the appropriate voltage. Proper voltage setting depends on your region.

2.Remove the expansion cards one at a time until the 5V_aux light on the system board turns on.

3.Replace the system board.

OR

Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on white then:

1.Check that the unit is plugged into a working AC outlet.

2.Open the rear cover and check that the power button cable is properly connected to the system board.

3.Check that the power supply cables are properly connected to the system board.

4.Check to see if the 5V_aux light on the system board is turned on. If it is turned on, then replace the power button assembly.

5.If the 5V_aux light on the system board is off, then replace the power supply.

6.Replace the system board.

86

Chapter 8 Troubleshooting Without Diagnostics

Page 93 Page 95
Page 94
Image 94
HP 800 G1 manual Processor fan or other system fan spins. If the fan
Page 93 Page 95

800 G1 specifications

The HP ProDesk 800 G1 is a powerful and versatile desktop computer designed for business and professional use. Released as part of HP's ProDesk series, this model is known for its reliability, performance, and advanced features, making it an ideal choice for various office environments.

One of the standout characteristics of the HP ProDesk 800 G1 is its robust performance. Equipped with Intel's 4th generation Core processors, users can choose from a range of options including Core i3, i5, and i7, ensuring that there is a suitable option for tasks ranging from basic office applications to more demanding workloads such as graphic design and data analysis. The desktop supports up to 32GB of DDR3 RAM, enabling multitasking capabilities that allow users to run multiple applications simultaneously without performance degradation.

Storage options on the HP 800 G1 are flexible, including traditional hard disk drives (HDD) and solid-state drives (SSD). The inclusion of SSDs significantly enhances system responsiveness and boot times, making it a great option for users who require quick access to files and applications. Additionally, with varying storage capacities available, users can choose a configuration that best fits their data requirements.

Connectivity is another area where the HP ProDesk 800 G1 excels. It features multiple USB ports, including USB 3.0 for faster data transfer speeds, along with legacy ports such as USB 2.0. The desktop is also equipped with DisplayPort and VGA outputs for versatile display options, allowing users to connect multiple monitors for enhanced productivity. Furthermore, it includes Ethernet for reliable wired network connections and can support wireless connectivity options for added convenience.

In terms of security, the HP ProDesk 800 G1 has several built-in features, such as HP Client Security and TPM (Trusted Platform Module) for hardware-based encryption. This ensures that sensitive data remains protected, making it suitable for businesses that prioritize data security.

The design of the HP ProDesk 800 G1 is both functional and aesthetically pleasing. Its compact form factor allows for easy placement in limited spaces, while the tool-less design simplifies upgrades and maintenance. Additionally, HP’s commitment to energy efficiency is evident in this model, with ENERGY STAR certification ensuring that it operates in an environmentally friendly manner.

Overall, the HP ProDesk 800 G1 stands out as a reliable desktop computer that combines performance, security, and expandability, making it a smart investment for any business looking for a robust computing solution.
Top Page Image Contents