i have a asus cuv4x motherboard and i have a 128mb pc100 of ram installed and iam planning to buy a pc133 ram. i dont know if my motherboard supports a pc133. i went to asus site but never found the model of my motherboard.

http://www.thetechzone.com/reviews/motherboards/asus/cuv4x/index.shtml

It does.

Crucial (http://www.crucial.com/store/listparts.asp?Mfr%2BProductline=ASUS%2B+Motherboar ds&mfr=ASUS&cat=RAM&model=CUV4X&submit=Go) says it does

thnks for the info!