Light Pattern | Problem Description | Suggested Resolution |
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| The computer is in | Press a key on the keyboard, move the |
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| standby mode. | mouse, or press the power button to |
Blinking |
| resume normal operation. |
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Green |
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System Messages
NOTE: If the message you received is not listed in the table, see the documentation for either the operating system or the program that was running when the message appeared.
A L E R T ! P R E V I O U S A T T E M P T S A T B O O T I N G T H I S S YS T E M H A V E F A I L E D A T
C H E C K P O I N T [N N N N ] . F O R H E L P I N R E S O L V I N G T H I S P R O B L E M , P L E A S E N O T E T H I S C H E C K P O I N T A N D C O N T A C T D E L L TE C H N I C A L S U P P O R T — The computer failed to complete the boot routine three consecutive times for the same error. Contact Dell technical support(see "Contacting Dell" on page 159).
CMOS C H E C K S U M E R R O R — Possible motherboard failure or RTC battery low. Replace the battery (see
CPU F A N F A I L U R E — CPU fan failure. Replace the CPU fan (see "Removing the Processor" on page 99).
F L O P P Y D I S K E T T E S E E K F A I L U R E — A cable may be loose, or the computer configuration information may not match the hardware configuration. Check cable connections. If the problem persists contact Dell technical support (see "Contacting Dell" on page 159).
D I S K E T T E R E A D F A I L U R E — The floppy disk may be defective or a cable may be loose. Replace the floppy disk/check for a loose cable connection.
H A R D - D I S K R E A D F A I L U R E — Possible HDD failure during HDD boot test. Contact Dell technical support (see "Contacting Dell" on page 159).
K E Y B O A R D F A I L U R E — Keyboard failure or keyboard cable loose (see "Keyboard Problems" on page 145).
N O B O O T D E V I C E A V A I L A B L E — The system cannot detect a bootable device or partition.
•If the floppy drive is your boot device, ensure the cables are connected and a bootable floppy disk is in the drive.
•If the hard drive is your boot device, ensure the cables are connected, and that the drive is installed properly and partitioned as a boot device.
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Troubleshooting
