57
Using Support Tools
CMOS checksum error — Possible system
board failure or RTC battery low. Replace the
battery (see the Service Manual at
support.dell.com/manuals) or contact Dell (see
“Contacting Dell” on page 77).
CPU fan failure — CPU fan has failed. Replace
the CPU fan (see the Service Manual at
support.dell.com/manuals).
Hard-disk drive failure — Possible hard-disk
drive failure during POST. Contact Dell (see
“Contacting Dell” on page 77).
Hard-disk drive read failure — Possible
hard-disk drive failure during HDD boot test.
Contact Dell (see “Contacting Dell” on page 77).
Keyboard failure — Keyboard failure or
loose cable.
To replace the keyboard, see the Service
Manual at support.dell.com/manuals.
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 Dell Technology Guide at
support.dell.com/manuals).
No timer tick interrupt — A chip on the system
board might be malfunctioning or system board
failure. Contact Dell (see “Contacting Dell” on
page 77).
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