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If it's a Dell computer, just about ALL the time, Dell is notorious for cracked motherboards. For all others......electrical surge frying some component, a cracked trace on the motherboard, a cracked solder joint. And just about any other time they don't know what is wrong.

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13y ago
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13y ago

Could be a number of reasons. If you have onboard video, sound or ethernet, and that componant fails, the mainboard may need replaced. Power surges and power loss are a big cause of these failures.

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