Re: 1.86ghz vs. 2.26ghz Worth the upgrade?
On mine, it wasn't soldered in. However, there was a twist to the way it's installed. At first, I was like "how the hell do you remove the CPU from the socket?" I didn't find the lever that's usually present to remove the CPU. Instead, there's a small hex bolt that you need to turn on the side. Then the CPU comes right out. To do that, of course you need an allen wrench key. Since I didn't have one, I just used a small flathead screwdriver, lol. Works just fine with that.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?