DELL 530b Manuale Utente

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Troubleshooting Tools
If the power light is blinking amber, the computer is receiving electrical 
power, a device might be malfunctioning or incorrectly installed.
Remove and then reinstall any cards (see "Cards" on page 129).
Remove and then reinstall the graphics card, if applicable (see "Cards" 
on page 129).
If the power light is steady amber, there may be a power problem or an 
internal device malfunction.
Ensure that all power cables are securely connected to the system 
board (see "System Board Components" on page 110).
Ensure that the main power cable and front panel cable are securely 
connected to the system board (see "System Board Components" on 
page 110).
Beep Codes
Your computer might emit a series of beeps during start-up if the monitor 
cannot display errors or problems. This series of beeps, called a beep code, 
identifies a problem. One possible beep code consists of repetitive three short 
beeps. This beep code tells you that the computer encountered a possible 
motherboard 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 "Dell 
book.book  Page 86  Monday, October 6, 2008  11:28 AM