So... you switched out the processor and the ram, but then it didn't work so you re-installed everything BACK to how it was, and this is the result? Am I reading that right?
Hard to think there's something wrong with the processor but you're still getting this far. In my experience, when a processor is bad or incorrectly installed, it won't start up at all, or crashes in some less controlled way than this.
You might run memtest86 and see what it thinks of your ram, though.
Memtest86.com - Memory Diagnostic Download the CD image, and boot from that. Could be it got damaged or something.