主板维修从进门到精通（Motherboard maintenance from door to master）.docVIP

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主板维修从进门到精通（Motherboard maintenance from door to master）.doc

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主板维修从进门到精通（Motherboard maintenance from door to master）

主板维修从进门到精通（Motherboard maintenance from door to master） The author, computer, CPU, normal, chip, echo, memory Text: Motherboard maintenance from door to master Maintenance practice: 1. a customer repair MSI6566845 board piece, reflected light is not bright. The author further asked that the time is not on board, he only need to take CPU fan, shake the CPU socket. The motherboard can normally work. The detection of the case. Because of this, CPU accepted the motherboard socket the author concluded that the BGA package, it may start air welding. In order to further demonstrate the authors inference, the data line load measurement CPU, found there was open scene, so I take something for the root maintenance oven, CPU socket, motherboard repair. 2. block scene: Friends of the motherboard is solek sl-65fv, he put down the front light board clean, and then loaded on the go forget to switch and double bond that is how the rows of pin inserted, he used the copper key is the row pin sweep, I saw a flash, the motherboard will there is no news. Obstruction resolution: the author analyzes the scene depicted by a friend. Is it a power switch or a Reset key? I put those plugs are pulled down, and then the metal chip short-circuit, the motherboard switch pin, or no news. The author then removed the power to change the authors good power, but still hinder. I removed the motherboard from the case, and removed the memory and CPU, using the authors motherboard diagnostic card to diagnose. Plug the diagnostic card onto the expansion slot of the motherboard to electrify the board. There is no response on the diagnostic card. The choice of the main electrical plug on the motherboard to force the dead is a power buckle that face a green line and some are grey in it, and the two black line short power was launched together. The pin is the opposite of the green line to find the dead motherboard connected with tweezers to the pin connection line it and two short circuited together, is an ins