Video cards are devices that are used to display a graphic image on the screen. They can be expansion cards or integrated into the motherboard. Expansion cards are inserted into a slot on the motherboard, integrated is performed as a separate chip or as part of the north bridge. You will need these details from the life of video cards in order to know how to act if, when you turn on the computer, the image on the monitor does not appear at all, or it is distorted.
Instructions
Step 1
After turning on the computer in normal mode, if the speaker is connected to the motherboard, one short beep is heard. In the event of a malfunction of any equipment, the signal changes. There are special tables of BIOS signals, thanks to which you can determine the problem immediately upon startup of the computer. Most motherboard manufacturers have assigned one long and two short beeps to indicate a video card malfunction. So, if after turning on the system unit you hear one long and two short “beeps”, and the message “No video signal” appears on the monitor screen or there is no image at all, the problem is in the video card.
Step 2
Disconnect the system unit from the mains. If your graphics card is an expansion card, remove the tightening screws that secure it to the chassis. Pull down the plastic clips securing the card to the slot and remove it. Take a regular eraser and wipe the contacts - perhaps the problem is that they have oxidized. Roll a piece of thick paper (not newsprint) into a tight corner and wipe the contacts inside the slot.
Step 3
Insert the video card back firmly until it clicks and turn on the computer. If nothing has changed, check the card in the same order on a known working computer. If an image appears on another computer, then the problem is in the slot on your motherboard.
Step 4
A malfunction of a video card can manifest itself in a different way: for example, stripes and dots appear on the screen (they are usually called artifacts), colors are not transmitted correctly. Remove the card from the slot and carefully examine both sides of the card. The card should be free of swollen and leaking capacitors, burnt areas and mechanical damage. If there are no visible defects, the cause of the problem may be overheating of the card. Perhaps the ventilation inside your system unit is poor. Check the video card on another computer.
