The PC apostle is about the aboriginal achievement accessory to be activated during the cossack process. Since it is alive afore the cartoon card, it can be acclimated to acquaint absurdity codes accompanying to problems that anticipate the abundant added circuitous initialization of the cartoon agenda to booty place. For archetype the Video BIOS usually cannot actuate a cartoon agenda unless alive RAM is present in the system, while beeping the apostle is achievable with aloof ROM and the CPU registers. Usually, altered absurdity codes will be signaled by specific beeping patterns, such as e.g. "one beep; pause; three beeps; pause; repeat". These patterns are motherboard specific and are usually accurate in the abstruse chiral of the motherboard.
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