Dell Precision 490 Desktop User Manual

Also see for Precision Workstation 490: Quick reference guide Quick reference guide Quick guide Specifications

Contents

Card Fan ProblemsDrive ProblemsFill out the Diagnostics Checklist as you complete these checks.Test the graphics card —1. Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then remove thecomputer cover (see Removing the Computer Cover)2. Remove all cards except the graphics card. See Cards.If your primary hard drive is connected to a drive controller card and not to one of the system board IDE connectors, leave the drivecontroller card installed in the computer.3. Close the computer cover (see Replacing the Computer Cover), reconnect the computer and devices to electrical outlets, and thenturn them on.4. Run the Dell Diagnostics. See Dell Diagnostics.Test the cards —1. Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then remove thecomputer cover (see Removing the Computer Cover).2. Reinstall one of the cards that you removed previously. See Cards.3. Close the computer cover (see Replacing the Computer Cover), reconnect the computer and devices to electrical outlets, and thenturn them on.4. Run the Dell Diagnostics. See Dell Diagnostics.If any of the tests fail, the card you just reinstalled is faulty and needs to be replaced.5. Repeat this process until you have reinstalled all cards.CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of yourcomputer's electronic components. You can do so by touching an unpainted metal surface on the computer.Check the cable connections — Make sure the card fan cable is connected firmly to the card fan connector on the system board (seeSystem Board Components).CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of yourcomputer's electronic components. You can do so by touching an unpainted metal surface on the computer.Ensure that Microsoft® Windows® recognizes the drive — Click the Start button and click My Computer. If the floppy, CD, or DVD drive,is not listed, perform a full scan with your antivirus software to check for and remove viruses. Viruses can sometimes prevent Windows fromrecognizing the drive.Test the drive —l Insert another floppy disk, CD, or DVD to eliminate the possibility that the original one is defective.l Insert a bootable floppy disk and restart the computer.Clean the drive or disk — See Cleaning Your Computer.Check the cable connections