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Using Support Tools
when the message appeared. Alternatively
you could see the Service Manual on the
Dell Support website at support.dell.com
or see “Contacting Dell” on page 44 for
assistance.
Alert! Previous attempts at booting this system
have failed at checkpoint [nnnn]. For help
in resolving this problem, please note this
checkpoint and contact Dell Technical
Support — The computer failed to complete
the boot routine three consecutive times for the
same error. See “Contacting Dell” on page 44
for assistance.
CMOS checksum error — Possible motherboard
failure or RTC battery low. Replace the
battery. See “Contacting Dell” on page 44 for
assistance.
CPU fan failure — CPU fan has failed. See
“Contacting Dell” on page 44 for assistance.
Hard-disk drive failure — Possible hard disk
drive failure during HDD POST. See “Contacting
Dell” on page 44 for assistance.
Hard-disk drive read failure — Possible hard
disk drive failure during HDD boot test. See
“Contacting Dell” on page 44 for assistance.
No timer tick interrupt — A chip on the system
board might be malfunctioning or there may be a
system board failure. See “Contacting Dell” on
page 44 for assistance.
USB over current error — Disconnect the USB
device. Your USB device needs more power for
it to function properly. Use an external power
source to connect the USB device, or if your
device has two USB cables, connect both of
them.
Hardware Troubleshooter
If a device is either not detected during
the operating system setup or is detected
but incorrectly configured, you can use the
Hardware Troubleshooter to resolve the
incompatibility.
To start the Hardware Troubleshooter:
Click 1. Start → Help and Support.