CMOS C H E C K S U M E R R O R Possible system board failure or RTC battery low. Replace the battery. See your Service Manual at support.dell.com or see "Contacting Dell" on page 69 for assistance.

CPU F A N F A I L U R E Processor fan failure. Replace processor fan. See your Service Manual at support.dell.com.

H A R D -D I S K D R I V E F A I L U R E Possible hard drive failure during hard drive POST. Check cables, swap hard disks, or see "Contacting Dell" on page 69 for assistance.

H A R D -D I S K D R I V E R E A D F A I L U R E

Possible hard drive failure during hard-drive start test (see "Contacting Dell" on page 69 for assistance).

K E Y B O A R D F A I L U R E Keyboard failure or keyboard cable loose.

Troubleshooting

NO B O O T D E V I C E A V A I L A B L E No bootable partition on hard drive, or the hard drive cable is loose, or no bootable device exists.

If the hard drive is your boot device, ensure that the cables are connected and that the drive is installed properly and partitioned as a boot device.

Enter system setup and ensure that the boot sequence information is correct (see your

Service Manual at support.dell.com).

NO T I M E R T I C K I N T E R R U P T A chip on the system board might be malfunctioning or system board failure (see "Contacting Dell" on page 69 for assistance).

USB O V E R C U R R E N T E R R O R Disconnect the USB device. Use external power source for the USB device.

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Dell A100, A180 specifications R D -D I S K D R I V E R E a D F a I L U R E