I have a blue orb installed on my MSI K7T Pro2-A and it was very easy to install. Just remove the gold MSI heatsink first, and clean off the thermal grease from the northbridge with an alcohol swab. Then I just used some adhesive I bought from Radio Shack and applied it onto the blue orb, then placed it on the northbridge and alined it properlly and let it sit for a few minutes. When I tryed to pull it off it was adheased well and would not budge, I can literally lift the motherboard by the blue orb thats how well its on there. As you can see this is very easy to do. As for performance you see like a -4C difference and this allows for better FSB overclocking. As you can see I am running a 115Mhz FSB stable, so its pretty much worth it.