Nick - XP 64 Question

Hi Nick,
If I deciede to move to XP64 is a DOS format, fresh install the way to go or is an upgrade safe??
Many thanks.
i7 920 OC 3.8
260 video card
3 Gb tri-channel memory(for now)
Jack S

If I deciede to move to XP64 is a DOS format, fresh install the way to go or is an upgrade safe??
Many thanks.
i7 920 OC 3.8
260 video card
3 Gb tri-channel memory(for now)
Jack S
