I reset PMU, and now, no startup...

Greetings, all. I turned off my computer, pulled the power cord, hit the PMU button, shut the door, attached the cord, and waited ten seconds and then hit the power button. And now the computer will not startup.
One thing to point out is the I was experiencing kernal panics as the only functionality of the system, and so I replaced the internal drive. The internal drive does not have an OS installed...but I do not believe this makes a difference, as hitting the power button yields no results at all.
Any suggestions?
Thanks!
Vince

Is there any indication that it's trying to start?
Based on your description, you followed the procedure in this document. *Resetting Cuda/PMU on Power Mac G5, Power Mac G4, Power Macintosh G3*
http://docs.info.apple.com/article.html?artnum=86760
Hopefully, you didn't press the PMU button more than once, because this can cause the internal memory battery to discharge quickly. You need to check the voltage on the battery. See Mac PRAM, NVRAM, CUDA/PMU & Battery Tutorial
KPs are usually caused by hardware problems, frequently RAM. Disconnect all external devices except your mouse, kbd & monitor when troubleshooting.
 Cheers, Tom

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