Hey guys Today I got my upgrade CPU for my Mac Pro 2010 from an eBay seller. It wasn't greatly wrapped to be honest, just some bubble wrap around it and some tape and from my experience with bubble wrap, I know it's full of static. I've took it out to let it settle and I'm on the edge about doing the upgrade now. One of my plans is to clean the bottom contacts as I don't know how it's been handled, possibly with greasy fingers etc. Saying he's a big seller of used CPU's, you don't always see the negatives if people have returned and got a refund etc What do you guys think, is it worth the risk???