| Its your motherboard holding you back, and as Muff1n stated, you hit a choke point.
VIA chips overclock about as well as a brick. You will be exceeding its max bandwith in several areas, causing errors it is able to recover from - hence the lower score. You are lucky in not getting BSOD's.
Sorry to say - if you are wanting to overclock - you will need a new MB
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Silverstone ST405, AMD64 3500+ Winchester, Gigabyte GA-K8NXP-SLi,
4x512MB Generic, Palit 8600GT Super, 120GB WD SATA, 2x 320GB Seagate, Asus LightScribe DVDRW |