Using Support Tools
Keyboard failure — Keyboard failure or loose cable.
To replace the keyboard (see the Service Manual at support.dell.com).
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).
No timer tick interrupt — A chip on the system board might be malfunctioning or there might be a system board failure (see “Contacting Dell” on page 71).
52