Why does the desktop suddenly turn off the monitor, but is the mainframe still functioning?
Display connection may be loose, replug display connection lines to try, if not or replug the card to try
You do not move the computer for a period of time automatically close the display, move the mouse or keyboard lifting
First, the monitor power indicator is not bright, if not bright, you see is not the power of the display problem?Two, if the power of display lamp is bright, you re dial the Ca jointThree, if after second step can not work, open the case, dial Ca cardFour, after the third step is not enough, Ca allocated memory,Five, no, change the video card.Note that the third, fourth step is to wipe the gold fingers.
Generally, this is caused by memory, finger oxidation or poor contact. Encounter this situation:1, first unplug the computer power cord, press the chassis to open the key 5-6. Release the residual charge on the motherboard.2, then open the side panel, plug in, replace the memory slot.3, take the battery on the motherboard CMOS, 1 minutes after the placement.Computer has an independent graphics card, it is best to plug in the video card. When the above operation has been completed, the computer is powered on again.?Still need to use the minimum system failure boot: (power + motherboard, +CPU+ memory + video card + display)This time normal, should see the display content, jump out of detection, less than the hard disk, keyboard and other tips, you can enter the bios,The buzzer doesn't make any unusual calls. If not normal, the monitor doesn't show (or flower screen) or the buzzer has an abnormal call.(1) memory problemsA. itself question. No slot is available, nor is it available on other machines. That's for memory only. The buzzer usually has an abnormal sound.B. compatibility issues. Other machines can be used, but this can not be used; or a single root can be used, but 2 can not be used. Swap memory.(2) display / video card problemA. connection problem. See if there is a broken needle or a short circuit.The B. video card itself is corrupted.The C. monitor is damaged (very unlikely)B. motherboard problem. The graphics card slot or the associated control circuit is out of order. This time only by changing the motherboard to solve.
