Q: Trying to boot in EFI

Hello, im trying to load the EFI by cmd+alt+o+f and it simply never loads and shows me my desktop.

  Model Name:    MacBook Pro

  Model Identifier:    MacBookPro5,3

  Processor Name:    Intel Core 2 Duo

  Processor Speed:    2.66 GHz

  Number Of Processors:    1

  Total Number Of Cores:    2

  L2 Cache:    3 MB

  Memory:    8 GB

  Bus Speed:    1.07 GHz

  Boot ROM Version:    MBP53.00AC.B03

  SMC Version (system):    1.48f2

And im running Mac os X 10.6.8. please help and thanks in advance.