I had that model at the office for awhile and if the hardware is still good, I would place the restore CD in the CD drive and boot from that. If the restore CD doesn't boot, set the BIOS to all its default values and try again.
No boot from the restore CD means that you have a hard failure and need to repair the laptop.
I was recently given an old "Toshiba Satellite Pro 430CDT" laptop. I was wanting to repartion and refromat the HD. In the "DOS" mode I deleted the "Primary DOS Partion" so I could create a new one, and format it. I got a msg. stating to re-start the computer after I deleted the partion. When I restarted the computer, I can't get a "command prompt". No luck with a "start up disk". I thought the CMOS would give me a prompt. Any ideas?