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  2. POST card - Wikipedia

    en.wikipedia.org/wiki/POST_card

    Some motherboards have a built-in display to diagnose hardware problems. Most also report POST errors with audible beeps, if a PC speaker is attached. Such motherboards make POST cards less necessary. When these diagnostic cards were first introduced motherboards were expensive and well worth troubleshooting and repairing.

  3. Power-on self-test - Wikipedia

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

    BIOS POST card for ISA bus BIOS POST card for PCI bus Professional BIOS POST card for PCI bus Two POST seven-segment displays integrated on a computer motherboard. The original IBM BIOS made POST diagnostic information available by outputting a number to I/O port 0x80 (a screen display was not possible with some failure modes). Both progress ...

  4. Built-in self-test - Wikipedia

    en.wikipedia.org/wiki/Built-in_self-test

    A POST will perform a comprehensive test. Then, a periodic test will assure that the device has not become unsafe since the POST. Safety-critical devices normally define a "safety interval", a period of time too short for injury to occur. The self test of the most critical functions normally is completed at least once per safety interval.

  5. Memory tester - Wikipedia

    en.wikipedia.org/wiki/Memory_tester

    The diagnostic tools provide memory test patterns which are able to test all system memory in a computer. Diagnostic software cannot be used when a PC is unable to start due to memory or motherboard. While in principle a test program could report its results by sending them to a storage device (e.g., floppy disc) or printer if working, or by ...

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  8. Automatic test equipment - Wikipedia

    en.wikipedia.org/wiki/Automatic_test_equipment

    Automatic test equipment diagnostics is the part of an ATE test that determines the faulty components. ATE tests perform two basic functions. The first is to test whether or not the Device Under Test is working correctly. The second is when the DUT is not working correctly, to diagnose the reason.

  9. Which landmarks are affected by the wildfires in Los Angeles ...

    www.aol.com/landmarks-affected-wildfires-los...

    An earlier post thanked firefighters for "doing an AMAZING job helping citizens of Pacific Palisades and WeHo with the horrific fires." WeHo, for those who aren't immersed in L.A. lingo, means ...

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