Hard Drive error at startup

Failure problem: Computer boot times wrong, the message is "Disk boot failure, INSERT SYSTEM disk and press ENTER", the hard drive data cable is not, the hard drive to someone else's host but everything is normal.

Troubleshooting: From the error message, the prompt cannot find the bootstrap information. Press the DEL key to enter the BIOS in the boot, enter the "Advanced BIOS Features" menu in the BIOS, and see if the "One Boot" option is displayed as a CD-ROM (CDROM) boot, if yes, to the hard drive? (Hard Disk) can be started. If the problem persists, you can see if the hard drive data cable is loose. Finally check the motherboard and hard disk jumper, the specific way of the route can refer to the hard drive Manual (printed on the hard disk).