Ok was shopping around for a replacement to a celeron 450, noticed some of the lga775 compatible cpu's had contacts, not pins. However, the celeron 450 has pins...how does that work? Doesn't seem logical to me, I have a lga775...never had the cpu just yet but wondering if its possible to upgrade to maybe a core 2 duo 8500 in a Dell 530s. Says on the website anything compatible with lga775 on a g33m02 motherboard. But then again one site says upgradable to 4 gb of ram and another says 8. Confusing times. Need help?