No Voltage problem, what u have to do is find an Athlon T-Bird or Slower Duron processor, stick it into your Motherboard, an UPDATE the bios to the newest version, than pop your 1GHz Duron back in and it'll work fine......
The problem is that your BIOS is to old to recognize the Morgan Core Duron OR i shoudl say the Derivative of the Palomino core...AND your current bios isnt recognizing the CPU properly.....I had the same prob. with a neighbours computer, so i borrowed a friend 800MHz Athlon T-Bird popped it in, installed Windows with it, than updated the bios than swapped the Duron 1GHz back in and it worked 100% perfectly fine... =)
-MeTaL RoCkEr
<A HREF="http://www.anandtech.com/mysystemrig.html?id=13597" target="_new"> <b> My Rig </b> </A>