Dell Studio 1555 Setup Manual page 59

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 76).
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
drive failure during POST. Contact Dell (see
"Contacting Dell" on page 76).
Hard-disk drive read failure — Possible hard
drive failure during HDD boot test. Contact Dell
(see "Contacting Dell" on page 76).
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 available on your hard
drive or at support.dell.com/manuals).
Using Support Tools
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