Preventative Maintenance for Displays

The display is one of the most expensive components used by a PC, and a video card can be the biggest single expense inside a computer, so keeping them in good working order makes sense. Here’s how:

• Do not block ventilation holes in CRT and LCD displays. Blocked ventilation holes can lead to overheating and component failure.

• Use antistatic cleaners made for electronics to clean screens and other surfaces.

• Do not spray cleaners directly onto screens or enclosures; an electrical short could result if the cleaner drips inside the unit. Instead, spray the cleaner on a lint-free cloth, and use the cloth to clean the screen or enclosure.

• Use thumbscrews to hold VGA and DVI cables in place on displays, projectors, and video cards. Loose cables can cause poor-quality images and can lead to broken pins if the cable is snagged and pulled out of place. Broken pins could also cause poor-quality picture or loss of picture altogether.

• When a system is opened for upgrades or service, check the condition of the cooling features of the video card. Remove hair, dust, or dirt in or on the heat sink, cooling fan, fan shroud, or heat pipe radiator. Make sure airflow around and behind the video card is not obstructed by cables, dirt, dust, or other components.

• Allow plenty of clearance around the video card slot. Don’t use the slot next to the video card if the card would limit airflow to the video card’s cooling features.