How to rebot acer notebook

[tex50]

Hello,when i turn on my acer aspire i am seeing on the screen check cable connection..!
pxe-mof: Exiting intel PXE ROM
No bootable device-- insert boot disk and press any key

 

[Guest]

Open the BIOS screens (usually press F2 as the machine starts) and see if the hard drive is listed as present and that it is selected as the first boot device.

The thing about the cable is probably nonsense -- but it is possible the hard drive will be displayed in the BIOS though faulty.