OC'ing n00b, some help please :)

[thesmelliestsock.]

Hey guys, I just finished my rig today. I want to overclock my CPU to 4.2GHz, but I really don't know when to start. My CPU, RAM and motherboard are as follows:

P4 3.4E watercooled
ASUS P4C800-E Deluxe
1GB GeIL Dual Channel PC4000

For 4.2GHz, I need to set my FSB at 247 in order to reach that speed, but how can I overclock my memory so that I can achieve a 1:1 ratio? Also, how do I know which voltage settings to apply? My CPU idles at 34*c and loads at around 45*c, so I think I'm ok temperature wise.

Help would be appreciate, thanks

 

[bubblethumper]

Only comment i have is that you must force the memory speed in the bios to 400 instead of "auto" or it will automatically use a memory divider (which you DON'T want).