First, my computer screen automatically shut down, there is no signal to enter, is the reason?
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Experts answer: General CPU fan auto-off may be caused by too much dust, it is recommended to clean up what CPU fan and heat sink of dust, the new thermal grease added, if it is a problem with the fan switch to high fan another good (if not to be here problem, the problem may be the motherboard). The BIOS battery Discharge (recovery BIOS factory default) recommended plug about graphics cards, memory, and clear up health and polished graphics cards, memory cheat. Computer starts without display troubleshooting method (see if there is the drum of the capacitor). Step 1: First check the computer's external wiring is connected to each connection Re-inserted again to see if the fault is ruled out. Step 2: If the problem persists, then open the main chassis and see whether the excess metal chassis, or deformation caused by short circuit board, chassis, and whether the smell of burnt paste flavor, without the burnt chip on the motherboard, CPU around capacitor is not damaged and so on. Step 3: If If not, then clean up the dust on the motherboard, then check whether the computer normally. Step 4: If the problem persists, then unplug the Reset line on the motherboard and other switches, light connection, and then short-circuit switch with a screwdriver to see if can boot. Step 5: If you can not boot, then use the minimum system Method, the hard disk, floppy drive, unplug the drive's data, then check whether the computer can boot, the boot screen appears if the computer monitor, the problem in these devices. Then, one by one over several devices to access the computer, when access to a particular device, the failure to reproduce, indicating that the failure was caused by this device , And finally focus on examination of the device. Step 6: If the problem persists, then the fault may be caused by memory, graphics card, CPU, motherboard and other equipment caused. Then use the plug method, exchange and other methods were examined memory, graphics, CPU and other equipment is normal, if there is damage to the equipment, replacement of damaged equipment. Step 7: If the memory, graphics card, CPU and other equipment properly, then the BIOS discharge, the use of isolation, the board placed in the box outside, connected to memory, graphics, CPU and other tests, if the computer can display, and then and then Install the motherboard to the chassis testing, until you find the problem. If Fault still you will need to return the motherboard manufacturer repair. Step 8: computer boots but no display alarm, when the computer boot, the system BIOS to start POST (Power On Self Test), when a device detects that the computer has a fatal error, the report will control the speaker sound error. Thereby Can occur without showing alarm power failure. For the computer starts without showing fault alarm sound according to the meaning of BIOS alarm, failure to check equipment to troubleshooting.
Experts answer: General CPU fan auto-off may be caused by too much dust, it is recommended to clean up what CPU fan and heat sink of dust, the new thermal grease added, if it is a problem with the fan switch to high fan another good (if not to be here problem, the problem may be the motherboard). The BIOS battery Discharge (recovery BIOS factory default) recommended plug about graphics cards, memory, and clear up health and polished graphics cards, memory cheat. Computer starts without display troubleshooting method (see if there is the drum of the capacitor). Step 1: First check the computer's external wiring is connected to each connection Re-inserted again to see if the fault is ruled out. Step 2: If the problem persists, then open the main chassis and see whether the excess metal chassis, or deformation caused by short circuit board, chassis, and whether the smell of burnt paste flavor, without the burnt chip on the motherboard, CPU around capacitor is not damaged and so on. Step 3: If If not, then clean up the dust on the motherboard, then check whether the computer normally. Step 4: If the problem persists, then unplug the Reset line on the motherboard and other switches, light connection, and then short-circuit switch with a screwdriver to see if can boot. Step 5: If you can not boot, then use the minimum system Method, the hard disk, floppy drive, unplug the drive's data, then check whether the computer can boot, the boot screen appears if the computer monitor, the problem in these devices. Then, one by one over several devices to access the computer, when access to a particular device, the failure to reproduce, indicating that the failure was caused by this device , And finally focus on examination of the device. Step 6: If the problem persists, then the fault may be caused by memory, graphics card, CPU, motherboard and other equipment caused. Then use the plug method, exchange and other methods were examined memory, graphics, CPU and other equipment is normal, if there is damage to the equipment, replacement of damaged equipment. Step 7: If the memory, graphics card, CPU and other equipment properly, then the BIOS discharge, the use of isolation, the board placed in the box outside, connected to memory, graphics, CPU and other tests, if the computer can display, and then and then Install the motherboard to the chassis testing, until you find the problem. If Fault still you will need to return the motherboard manufacturer repair. Step 8: computer boots but no display alarm, when the computer boot, the system BIOS to start POST (Power On Self Test), when a device detects that the computer has a fatal error, the report will control the speaker sound error. Thereby Can occur without showing alarm power failure. For the computer starts without showing fault alarm sound according to the meaning of BIOS alarm, failure to check equipment to troubleshooting.
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