It seems that the chip on the motherboard storing the BIOS (Basic Input/Output System) has "lost" its memory, and the contents of the chip are invalid, i.e., "no valid BIOS has been found".
It would be cheaper to replace the motherboard than to remove that chip from the motherboard, buy a device that will accept the chip, and let you "reprogram" the BIOS back into the chip.
"No boot BIOS" or "No boot ROM" are the default messages when there's no hard disk to boot from, or when the hard disk does not contain a valid operative system, or is not marked as bootable. Also, if the hard disk is not among the units to boot from.
Check the system configuration, then the hard disk.
1. Insert the restore disk into your computer's DVD/CD
drive. Prior login to your user account is not required.
2.Reboot your computer. Watch the boot screens and wait for
the onscreen prompt to press any key. If you do not get a prompt, reboot your
computer once more and skip to step four.
3.Press any key to boot from CD when prompted to do so. You
will now be taken to the first screen in the restore process. Follow the
onscreen prompts to finish restoring your machine.
4.Change your BIOS settings, if necessary, to boot from your
CD drive first. Common options for entering the BIOS include pressing
"ESC," "DEL" or "F12" on your computer's first
boot screen. If you don't know how to get to the BIOS, check your computer's
documentation for instructions. Once inside the BIOS, set the primary boot to
CD-ROM and save your changes. Exit the BIOS and wait as your computer reboots
and begins the restore process.
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