开机无显示故障检查流程（国外英文资料）.docVIP

开机无显示故障检查流程（国外英文资料） Turn on no display failure check flow One, turn on to be able to hear di (normal start sound); Show that the host is up and running, and if no display is shown, then check that the power supply is normal. Check if the data line is loose (if the main board has the integrated graphics card and the independent graphics card, check if it is inserted correctly). Check if the graphics card is loose or oxidized and replugged (if the integrated graphics card checks memory). Two, turn on to hear not di a sound; Note that the fault lies in the host, open the case check. Turn on the power, if the power supply and CPU fan operate normally. It could be that memory is oxidized. How to handle: disconnect the main power supply, remove the memory, and reframe the machine after the eraser. If the independent graphics card is installed, the independent graphics card is checked by this method. The CPU fan does not turn after the electricity. It may be the main plate power failure to check for the leakage or the capacity of the drum. If not, the fault is more hidden, please check. 3, the power fan does not turn after the electricity. First check whether the plug is loose. If the plug is normal, then disconnect the power plug, with a paper clip or wire connection plug green line and black hole, after again, turning on the power supply if the fan operation, power supply is normal. If it does not turn, the power is broken and the power supply is replaced. Common fault 2: CMOS setup cannot be saved Such failures are generally due to inadequate motherboard battery voltage, to be replaced, but some cant solve the problem, after the motherboard battery replacement at this time there are two possible: 1. The main circuit problem, have to find a professional maintenance; 2. The problem of motherboard CMOS jumper, sometimes because of failure to clear the motherboard CMOS jumper as option, or set to external battery, makes the CMOS data cannot be saved. Common faults of three: