1 Short beep - Normal post, system is OK. Most modern PCs boot silently., 2 Short Beeps - Post Error - Error Code Shown On Screen, No Beep - Power Supply, MOBO problem, faulty speakers., Continuous Beep - Problem with system memory modules or memory controller., Repeating short beeps - Power supply or motherboard problem, 1 long, 1 short beep - Motherboard problems, 1 long, 2 or 3 short beeps - Video adapter error, 3 long beeps - Keyboard issue (check that a key is not depressed),

Motherboard Beep Codes

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