HP 8000 Quality Testing on HP Business PCs - Page 5

 Acoustics Testing-This testing helps ensure quiet, reliable products. Acoustic evaluations are performed with typical and power user applications: at idle, when the hard drive is being accessed, and at tonal resonances (noises that could be perceived as adverse by the customer).  Safety/Agency-Systems undergo extensive electromagnetic compatibility and safety testing to help ensure that the product is safe to operate, is environmentally friendly, meets European ergonomic fatigue standards and other various local regulations, does not interfere with radio or TV reception, and is free from interference by external electrical effects.  Power Supply Testing-This testing focuses on the power supply; it includes full electrical verification, voltage regulation, output ripple and noise, stability, input and output transients, stress margins for voltage and current, high-voltage isolation, electro-static discharge, and harmonic current emissions.  Reliability Testing-System and component level testing and modeling is geared towards mitigating risk such as Mean Time Between Failures (MTBF), Strife, High and Low temperature power cycling, long-term reliability, cold/warm boot, AC power on/off, and various other tests. Module Functional Testing This testing focuses on a wide variety of module subsystems to help ensure HP Business Desktop PC standards are met prior to integration into a desktop solution. Module functional testing is conducted on the graphics, audio, network controller, hard drive, optical drive, and input/output device subsystems, as well as on numerous software applications. Testing includes, but is not limited to:  Electric Signal Integrity Testing-This testing helps ensure that the proper signal quality is met on all interfaces and layout routes through the specific module components.  Mechanical Testing-Environmental and design ID testing helps to ensure the proper fit and function and temperature variance tolerance for a module.  Electro-Static Discharge Testing-This testing helps ensure that a module component meets specifications for continued operation after being subjected to electro-static discharges at various points on the device.  Electro-Magnetic Conductance Testing-This testing helps ensure that a module is not susceptible to and does not emit interfering radio waves.  Power Management Testing-This testing helps ensure that a module goes properly into and out of defined low-power states.  Software Driver Testing-This testing helps ensure that the software drivers for a module perform as required, deliver expected performance and features, and integrate into HP images to meet customer needs and latest technology.  Software Application Testing-As part of the total PC solution, HP offers select software applications, including hardware-enabling applications (such as DVD playback) and productivity type applications (such as Microsoft Office). Testing is conducted to help ensure that these HPspecific and industry standard applications offer the required features and integrate into HP images.  Video Timing Testing-This testing helps ensure proper graphics controller output for image display on a variety of monitors by complying with video timing specifications for all supported resolutions and refresh rates. Additionally, commercial HP monitors are tested in combination with the HP graphics controller solutions to better ensure proper image display.  Network Interface Testing-This testing helps ensure proper functionality of the network interface. Testing includes, but is not limited to, the following: bit-error-rate, auto-negotiation, networking protocol testing, and CRC (Cyclic Redundancy Check). Testing also verifies that packet loss specifications are not exceeded and that network packet patterns are as designed. 5