Dell Inspiron 15z (1570, Mid 2009) - Manual (Page 46)

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Using Support Tools
No boot device available — No bootable
partition on hard disk drive, the hard disk 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 on the Dell Support
website at support.dell.com).
No timer tick interrupt — A chip on the system
board might be malfunctioning or motherboard
failure. Contact Dell for assistance (see
“Contacting Dell” on page 63).
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.
CAUTION - Hard Drive SELF MONITORING
SYSTEM has reported that a parameter has
exceeded its normal operating range. It is
recommended that you back up your data
regularly. A parameter out of range may or may
not indicate a potential hard drive problem —
S.M.A.R.T error, possible hard disk drive failure.
Contact Dell for assistance (see “Contacting
Dell” on page 63).