PC boot problems
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Users questions: Each time the computer starts, run 5-10 seconds, the display suddenly shows no signal, but still the whirring of the host switch, repeated three times to restart the normal operation of the desktop, why? How to do? Please expert guidance, thank you. I suspect the problem is the graphics card, because the boot after the show, after a while did not There, but the host is still running, the display shows no signal, you need to have graphics?
Experts answer: The monitor is connected to another host on the use, if the fault disappears, the fault may be the graphics card. If the fault persists, it may be their own fault or the display monitor cable interface failure. Focus on examination of the interface metal pin monitor cable is broken or bent, if not, simply to monitor the replacement of a new cable and try again. 1, power line or data line problem. 2, issue CRT monitor (the proposed repair). 3, the graphics card or graphics driver problem (or try to change a graphics card upgrade Drive to try). The BIOS battery discharge (recovery BIOS factory default) recommended plug about graphics cards, memory, clean up health and polished graphics card, memory of the finger. PC boot no display troubleshooting method (see if there is the capacitance from the drum). Step 1: First check the computer's external Department of wiring is connected to each connection re-insert it again to see if the fault is ruled out. Step 2: If the fault persists, then open the main chassis view and whether the excess metal chassis, the deformation caused by short circuit or motherboard, chassis and whether the charred smell of paste flavor, without burning the chip on the motherboard, CPU around of Capacitors for damage and so on. Step 3: If not, then clean up the dust on the motherboard, then check whether the computer normally. Step 4: If the fault persists, then unplug the motherboard's Reset line and other switches, light connection, and then short-circuit switch with a screwdriver, to see whether to boot. Step 5: If Can not boot, then use the minimum system method, the hard drive, floppy drive, optical drive data cord, and then check whether the computer can boot, if the computer monitors the boot screen appears, the problem in these devices. Then one by one over several devices to access the computer, when access to a particular device, the fault re- Now shows that the failure was caused by this device, and finally focus on examination of this device. Step 6: If the fault persists, the fault may be caused by memory, video card, CPU, motherboard and other equipment caused. Then use the plug method, exchange and other methods were examined memory, graphics card, CPU and other equipment is normal, if the damage Bad equipment, replacement of damaged equipment. Step 7: If the memory, graphics card, CPU and other equipment properly, and then discharge the BIOS, using the isolation method, the board placed outside the enclosure, connected to memory, graphics card, CPU and other tests, if the computer can display, and then then Install the motherboard into the chassis Niece Try until you find the cause of the malfunction. If the fault persists you will need to return the motherboard manufacturer for repair. Step 8: Computer power no display but the alarm sound, when the computer boot time, the system BIOS to start POST (Power On Self Test), when the computer detects a device in a fatal error, they control the speaker Sound device reports an error. Therefore, there may be no display power failure alarm. For the computer starts without showing alarm fault alarm sound can be the meaning of BIOS to check the faulty equipment, to troubleshooting.
Experts answer: The monitor is connected to another host on the use, if the fault disappears, the fault may be the graphics card. If the fault persists, it may be their own fault or the display monitor cable interface failure. Focus on examination of the interface metal pin monitor cable is broken or bent, if not, simply to monitor the replacement of a new cable and try again. 1, power line or data line problem. 2, issue CRT monitor (the proposed repair). 3, the graphics card or graphics driver problem (or try to change a graphics card upgrade Drive to try). The BIOS battery discharge (recovery BIOS factory default) recommended plug about graphics cards, memory, clean up health and polished graphics card, memory of the finger. PC boot no display troubleshooting method (see if there is the capacitance from the drum). Step 1: First check the computer's external Department of wiring is connected to each connection re-insert it again to see if the fault is ruled out. Step 2: If the fault persists, then open the main chassis view and whether the excess metal chassis, the deformation caused by short circuit or motherboard, chassis and whether the charred smell of paste flavor, without burning the chip on the motherboard, CPU around of Capacitors for damage and so on. Step 3: If not, then clean up the dust on the motherboard, then check whether the computer normally. Step 4: If the fault persists, then unplug the motherboard's Reset line and other switches, light connection, and then short-circuit switch with a screwdriver, to see whether to boot. Step 5: If Can not boot, then use the minimum system method, the hard drive, floppy drive, optical drive data cord, and then check whether the computer can boot, if the computer monitors the boot screen appears, the problem in these devices. Then one by one over several devices to access the computer, when access to a particular device, the fault re- Now shows that the failure was caused by this device, and finally focus on examination of this device. Step 6: If the fault persists, the fault may be caused by memory, video card, CPU, motherboard and other equipment caused. Then use the plug method, exchange and other methods were examined memory, graphics card, CPU and other equipment is normal, if the damage Bad equipment, replacement of damaged equipment. Step 7: If the memory, graphics card, CPU and other equipment properly, and then discharge the BIOS, using the isolation method, the board placed outside the enclosure, connected to memory, graphics card, CPU and other tests, if the computer can display, and then then Install the motherboard into the chassis Niece Try until you find the cause of the malfunction. If the fault persists you will need to return the motherboard manufacturer for repair. Step 8: Computer power no display but the alarm sound, when the computer boot time, the system BIOS to start POST (Power On Self Test), when the computer detects a device in a fatal error, they control the speaker Sound device reports an error. Therefore, there may be no display power failure alarm. For the computer starts without showing alarm fault alarm sound can be the meaning of BIOS to check the faulty equipment, to troubleshooting.
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