76 Troubleshooting Tools• If the power light is blinking amber, the computer is receiving electricalpower, a device might be malfunctioning or incorrectly installed.– Remove and then reinstall the memory modules (see "Memory" onpage 107).– Remove and then reinstall any cards (see "Cards" on page 111).– Remove and then reinstall the graphics card, if applicable (see "Cards"on page 111).• If the power light is steady amber, there may be a power problem or aninternal device malfunction.– Ensure that all power cables are securely connected to the systemboard (see "System Board Components" on page 102).– Ensure that the main power cable and front panel cable are securelyconnected to the system board (see "System Board Components" onpage 102).Beep CodesYour computer might emit a series of beeps during start-up if the monitorcannot display errors or problems. This series of beeps, called a beep code,identifies a problem. One possible beep code consists of repetitive three shortbeeps. This beep code tells you that the computer encountered a possiblemotherboard failure.If your computer beeps during start-up:1 Write down the beep code.2 Run the Dell Diagnostics to identify a more serious cause (see "DellDiagnostics" on page 80).
