Plz help and i posted a new thread on purpose

word for word this is what the mobo manual says:
HT-Speed (800 MHz)
This item shows the bus frequency of Local Descriptor Table. Its default is set at 800MHz. Previously my number was 400MHz and so i put it up to 800. will i notice a difference? or will i overheat? i have a Zalman Heatsink... and Artic Silver 5 thermal compound


any other recomendations? i want it a little faster.... here are al of my specs....
ECS Elitegroup 755-A2....keep in mind i was on a budget when i bought all of this
AMD Athlon64 3000+
Kingston PC3200 433MHz 512MB
Xtasy Radeon 9600 256MB
Hercules 5.1 sound card
Netgear Networkin card
Cheap cd burner.... im in the process of gettin a dvd burner
Samsung 80gb piece of s*** HD reallllly slow! need to save up
Windows XP Pro
All wrapped up in a Antec Sonota

 

Just buy another 512 RAM and next time go with a Seagate hard drive