Booting and F keys problems

Hi all,
Xp pro Sp3;
Intel Pentium4 1.8.
After I upgraded to the latest available BIOS version, added a new HD and 2
512G SDRAM to an old PC(2001), I noticed the following: The system would
take 2 minutes to boot; the F8 key features are now with F10 and the F10
features with F12. Except for this the system is running smoothly, but I'm
afraid something might go wrong in the future. Any suggestions?
Thanks,
Andrea