Test System:
AMD Athlon 64 FX-60 Processor
ASUS AN832-SLI Deluxe Motherboad
Corsair XMS 3200LL Memory
Western Digital 250GB SATA Hard Drive
BFG Tech 7800 GTX OC PCIe Graphics Card
OCZ Technology PowerStream 600W PSU
I left everything at default and raised the memory to 2.85V in the BIOS and started raising the FSB...
First I tried 210MHz:

It worked so I went to 220MHz:

Stable at 220MHz so on to 230MHz:

At 230MHz the BIOS required a bit of tweaking to get above 230MHz, but we got an extra 3MHz without having to increase the voltage to the processor at all.
The top overclock at default voltages:

As you can tell our AMD Athlon 64 FX-60 overclocks to 3.029GHz at default CPU voltages and with the stock heat sink fan. Not a bad overclock for not really even trying. Time to change over to the DFI Expert nF4 motherboard and to strap on the water cooler!