upgradeing cpu

I wouldn't say that you have to upgrade your bios everytime you change a cpu. im sure its a good idea though. has anyone tried a 4400+ x2 in a MSI K8N Neo2 Platinum Mobo? im pretty much going to buy one just wanted to make sure it would work.

thanks

MSI K8N NEO2 PLATINUM MOBO
AMD ATHLON 64 3200+
3GB OF RAM 3200
MSI 6800GT AGP VIDEO CARD
PEXTOR 16XDVD±R/RW PLUS DVD-ROM/CD-R/RW
4 WD 250GB HDD SATA
WIN XP PRO