Disk Boot Failure Insert System Disc

[PB94941]

My computer keeps saying "Disk boot failure insert system disc" when starting up, this is after a black screen with a flashing cursor for about 2mins.. Yet if i press F8 and tell it to boot from the right disc, it works perfectly..

Anybody got any ideas?


The hard drive is Samsung F1 1TB

Cheers

 

[PB94941]

I think the cables are aright, will restart and check in a second. How long does the battery last? I will take it out and check it, do you know what voltage they are?

thanks