A rather new old question

Hi everyone

Since I bought the motheboard I'm using right now, almost a year and a half ago, and I've scratching my head real hard about three subtle and incomprehensible options. But first let me tell you about my machine's specs:

1. Processor: Pentium 4, 3.2 GHz, with hyperthreading.
2. Motherboard: Gigabyte GA-i8775PE, based on intel's i865PE chipset.
3. RAM: 3GB Kingstone's 3200 DDRAM, non-ECC, 2 stick each one Gigabyte, and another two sticks each 512 MB
4. Monitor: Viewsonic 20" LCD VX2025_wm monitor
5. Video Card: Nvidia 7800 GS by BFG.
6. Sound Card: Creative F-xi platinum sound card
7. speaker system: Logitech z5500 5.1 digital speakers.
8. Hard drives: Two SATA hard drives, 250 GB each, by Western Digital.

I'm using the latest version of the bios available from Gigabyte's website, version F6. The three options puzzling me are:

1. PSB parking.
2. Dynamic Paging mode.
3. Fast Chip select.

I would really appreciate any comment, or even the time spent reading about problem.

Best Regards
Ashraf Kadry