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  2. Power-on self-test - Wikipedia

    en.wikipedia.org/wiki/Power-on_self-test

    A modern PC with a bus rate of around 1 GHz and a 32-bit bus might be 2000x or even 5000x faster, but might have many more gigabytes of memory. With boot times more of a concern now than in the 1980s, the 30- to 60-second memory test adds undesirable delay for a benefit of confidence that is not perceived to be worth that cost by most users.

  3. POST card - Wikipedia

    en.wikipedia.org/wiki/POST_card

    Two POST seven-segment displays ("Q_CODE1" and "Q_CODE2", lower-left), integrated on a computer motherboard. Diagnostic cards are today mainly used by designers of motherboards and extension cards, along with logic analyzers and other debug tools and interfaces. They are less commonly used in the 21st century for computer repair and by system ...

  4. Motherboard - Wikipedia

    en.wikipedia.org/wiki/Motherboard

    A case's motherboard and power supply unit (PSU) form factor must all match, though some smaller form factor motherboards of the same family will fit larger cases. For example, an ATX case will usually accommodate a microATX motherboard. Laptop computers generally use highly integrated, miniaturized, and customized motherboards.

  5. Power good signal - Wikipedia

    en.wikipedia.org/wiki/Power_good_signal

    The Power Good signal (power-good) is a signal provided by a computer power supply to indicate to the motherboard that all of the voltages are within specification and that the system may proceed to boot and operate.

  6. Motherboard form factor - Wikipedia

    en.wikipedia.org/wiki/Motherboard_form_factor

    A PC motherboard is the main circuit board within a typical desktop computer, laptop or server. Its main functions are as follows: Its main functions are as follows: To serve as a central backbone to which all other modular parts such as CPU , RAM , and hard drives can be attached as required to create a computer

  7. Diagnostic board - Wikipedia

    en.wikipedia.org/wiki/Diagnostic_board

    A dummy board provides a minimal interface. This type of diagnostic board in intended to confirm that the interface is correctly implemented. For example, a PC motherboard manufacturer can test PCI functionality of a PC motherboard by connecting a dummy PCI board into each PCI slot on the motherboard

  8. BIOS - Wikipedia

    en.wikipedia.org/wiki/BIOS

    Many PC motherboard suppliers licensed the BIOS "core" and toolkit from a commercial third party, known as an "independent BIOS vendor" or IBV. The motherboard manufacturer then customized this BIOS to suit its own hardware. For this reason, updated BIOSes are normally obtained directly from the motherboard manufacturer.

  9. Hardware stress test - Wikipedia

    en.wikipedia.org/wiki/Hardware_stress_test

    A stress test (sometimes called a torture test) of hardware is a form of deliberately intense and thorough testing used to determine the stability of a given system or entity. It involves testing beyond normal operational capacity , often to a breaking point, in order to observe the results.