Hi everyone, one of my two memory risers in my Mac Pro began to smoke when I powered up - smoke is coming from the 3 square metal plates that are near each other on the riser. I have a few quick questions, pictures, then more info.. 1) Will the one-year Apple warranty cover this since I had Crucial memory in the riser? 2) Will the Crucial warranty cover this although it was the riser and not the Ram itself? 3) Can I use my Mac Pro with only one Riser inserted while I figure this out (or with the bad riser empty for the time being)? Some details of the issue are: The Mac Pro was a refurb I purchased from Apple last spring. It came with 4 512mb RAM. A month or so later I purchased 2 1gb, which I placed in Riser A with the 4x512mb now all in Riser B (the issue was in the riser with the 2 1gb) Things seemed to work fine until recently (though I didn't monitor temprature as closely as I should've). The biggest recent change was my installing BootCamp a couple of weeks ago for the purpose of playing a game that wouldn't run on my version of Parallels. Your help comments and suggestions will go a long way. And thank you to those of you who do contribute here! This is my first Apple product, and this forum was a key contributor in my confidence to make the swith and to do so with the hefty investment of a Mac Pro (guaranteeing the switch was long term for me!) I love my Mac Pro, and hope this issue is just a small bump in a long road of happy ownership, so please help if you can!