Dell Inspiron 0M1PTFA00 Setup Manual page 36

Using Support Tools
CMOS checksum error — Possible system
board failure or coin‑cell battery low.
Battery needs replacement. See the Service
Manual at support.dell.com/manuals or contact
Dell for assistance (see "Contacting Dell" on
page 55).
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 drive
failure during HDD POST. Contact Dell for
assistance (see "Contacting Dell" on page 55).
Hard-disk drive read failure — Possible hard
drive failure during HDD boot test. Contact
Dell for assistance (see "Contacting Dell" on
page 55).
Keyboard failure — Replace keyboard or check
the cable for loose connection.
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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 there might be
a system board failure. See the Service Manual
at support.dell.com/manuals or contact Dell for
assistance (see "Contacting Dell" on page 55).