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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 57
for assistance).
CMOS checksum error — Possible system
board failure or RTC battery low. Battery needs
replacement. See the Service Manual at
support.dell.com/manuals or see “Contacting
Dell” on page 57 for assistance.
CPU fan failure — CPU fan has failed. CPU fan
needs replacement. See the Service Manual at
support.dell.com/manuals.
Hard-disk drive failure — Possible hard‑disk
drive failure during HDD POST. See “Contacting
Dell” on page 57 for assistance.
Hard-disk drive read failure — Possible hard‑
disk drive failure during HDD boot test. See
“Contacting Dell” on page 57 for assistance.
Keyboard failure — Replace keyboard or check
the cable for loose connection.
No boot device available — No bootable
partition on hard drive, 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 the
Service Manual
at
support.dell.com/manuals.
No timer tick interrupt — A chip on the
system board might be malfunctioning or
system board failure. See the
Service Manual
at support.dell.com/manuals or see “Contacting
Dell” on page 57 for assistance.