The middle of black screen
Users questions: Sometimes my computer a black screen appears in the middle, surrounded by still good. Say what is what 16-bit DOS error, then no reflection, on what does not work, and there is nothing after the restart. How's going on ah ? is not a virus it? how to solve it?
Experts answer: for some older or Assembled computers, black is more prone to failure. Computer screen goes black due to a combination of hardware, for example, display damage, graphics corruption, poor contact and other graphics. To exclude a black screen failure, should be ruled out, replace the combination of methods, the basic principle is to first replace the dubious nature of most computer components, could be Failure to follow these steps to analyze the reasons. Hard one, check whether the security components into reliable computer first check the monitor cable is firmly and reliably inserted into the host interface, and then check the graphics card and motherboard I * O slots are a good contact between. If necessary, remove card, re-placement time, indeed Security plug in place, a good contact. Second, to confirm whether the damage display monitor and video card installed, if reliable, then replace it to try to confirm the normal display. If not black, then the display may be damaged due. Third, to confirm if the fan in question if the monitor is not damaged, further examination CPU fan is running. Such as running, can multimeter measuring voltage output is normal for the 12V, 15V, if not normal to try for a power supply. 4, detection CPU, video card and memory, such as the occurrence of a black screen, can be inter CPU, graphics card, memory outside of all the components removed, Then power up your computer. If the memory is faulty, should be alarm. If it is not memory reasons, please change to a normal CPU, boot re-testing. If there is still a black screen, you can only change a motherboard, the question should appear on the motherboard. In addition to the hardware aspects of the phenomenon causes a black screen, but also have to Under the three aspects of "soft" reasons may lead to "black." Soft and hardware acceleration hardware acceleration set too high can make a great deal of graphics software runs more smoothly, but if the computer hardware acceleration is set too high may lead to "black" phenomenon. To solve the "black" failure, first try Try lowering hardware acceleration. 1, click the Windows "Start" menu, click "Control Panel", then double-click "Display." 2, select the "Troubleshooting" tab, in the "hardware acceleration", the slider from "Full" drag gradually to close to "no" position. 3, click "OK" button. Two , Disable the 3D acceleration or upgrade graphics driver Programs If Windows has been configured for the 3D acceleration, but the graphics do not support this feature, so when running games or multimedia programs may appear "black" failure. 1, click the "Start", then click "Run", then "Open" box Type "dxdiag", and press Enter. 2, select "Display" tab, in the "DirectX Features", click "Test Direct3D" button to obtain the correct Direct3D functionality. 3, If the screen does not appear in a rotating cube, then the table Clear card does not support 3D acceleration. At this point, click the "Direct3D Acceleration" after the "Disable" button to disable the feature. If your card does not support 3D acceleration, in addition to disable the function, you can also contact the manufacturer with the graphics card, updating drivers, so that it supports DirectX, 3D acceleration. Third, graphics card drivers are not compatible with DirectX installation program may incorrectly detect video card, and install the driver can not normally drive, make sure to use the graphics driver is correct. 1, click the "Start", then click "Control Panel", then double-click "System . "2, select the" hardware "tab, click" Device Manager "button, then click" Show card "or" display adapter "before" + "sign, then right-click the following display appropriate adapter, and then click "Properties" button. 3, select the "Driver" tab, click the "Driver more information Information "button to display the graphics driver used. If you are using the driver and the graphics are not compatible, then you in the" Driver "tab, click the" Update Driver "button, then press the on-screen instructions operation, install the new version of the graphics card driver