Random BSOD's, mainly ntoskrnl.exe but also other errors.

It's usually in the downloads section, or on the page with the specs. Have you considered a completely new build? If you can affoard it, that's the way to go.

Here's the list and I don't think that CPU is listed. M4N68T - Motherboards - ASUS.

Kreshnak, That only makes it easier and cheaper. Everything you've replaced can be used in a new build as long as it is compatible. If you've replaced most everything then all those things can be used in the new build. It also allows you to choose a better motherboard and CPU because of the things you don't have to buy new. I do it all the time. The parts you can't use, save them. I have actually built a new computer out of the spare parts I have from previous builds, or used them as replacements for parts that go bad. I really don't recall everything you've replaced, but If you are looking at a new motherboard and CPU, you're in good shape. I would be more than happy to help if you want to try that. But, continue on getting your current board replaced with a good one. Because you are already looking at a new board and CPU, you are basically doing the same thing. You can just add a couple of things that you've been wanting. If you need any help with things, feel free to send me a private message, or even start a new thread in the Hardware section. There are an awful lot of people on this forum who absolutely love those threads. You may get some ideas you haven't thought of. You are in the perfect situation to do it.