Monitor no signal emergency

Users questions: Display prompt 1 display no signal is good, I tried to get other machines 2 graphics are good, I changed the two, still no signal, the monitor when the data cable into or set aside will be out "a cracking "sound .3 CPU normal operation, the memory of the alarm sound is not without question 4, the only replacement is not Motherboard please help out significantly, it may be the cause, how to solve, first thank you have a critical process, I found that can not display the time, it changed the display, this time to show, then I want to shut down exchange for the original display, find, or can not be displayed, and pulls, it does not monitor Shows the
Experts answer: hello: - 1, first of all, there is a question worth exploring: "will display when the data cable into or set aside will be out" Crash, "the voice" that you are doing something wrong - live plug, pull Display data line is dangerous, it is computer use, maintenance of the taboo. - 2, Since the monitor tried in other machines, and also replace the graphics card before, the only questionable thing is the motherboard. Because the interface card through "South Bridge", "North Bridge" (chipset) motherboard exchange data, South Bridge "entry point" a failure may be largest. - 3, the display is good, you can schedule In addition. For a failed motherboard, can, together with professional service to check the card to identify, and then decided to repair or update.
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