Anyways, first, check that the L1 bridges on the CPU is closed. It should look like (Fig 1): L1 . | | | |
If it looks like (Fig 2): L1 . : : : :
...They're not closed, which means you'll have to do it yourself.
Now, you can do this with a #2 pencil (mechanical pencil). Just draw lines to connect them so they look like Fig 1. See <A HREF="http://www.athlonoc.com/unlocking.php" target="_new">this guide</A>.
Then, install everything. I would suggest that you buy some Arctic Silver II because it helps conduct the heat to the heatsink because it fills microscopic gaps in the heatsink and the CPU core.
Anyways, I'm not sure how much your Duron will overclock. But, look in your manual from pages of the CPU External Frequency Setting. I have an A7V133, so I don't know how it corresponds. But, your original multiplier would should be 7.5 (7.5x100FSB=750). So, just increase it until it won't POST any further. I suggest using the jumpers, because using the BIOS might not stick as well. Anyways, if it doesn't POST, just increase the voltage. I hope it's enough for now...