featured iMac Startup Power System: Can USB-C power this desktop Mac?
A USB-C accessory or display fails while the desktop’s power state is being investigated. Identify the external-adapter or internal-supply design, then distinguish startup activity from a built-in display or backlight...
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iMac Startup Power System: Debris or damage at the power connection
The power lead does not seat normally or there is visible damage around the inlet. Identify the external-adapter or internal-supply design, then distinguish startup activity from a built-in display or backlight fault.
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iMac Startup Power System: Which power connection does this Mac use?
The desktop remains unresponsive with its normal power connection. Identify the external-adapter or internal-supply design, then distinguish startup activity from a built-in display or backlight fault.
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