I have also been trying to get to 333FSB but seems like the CPU has a FSB limitation.
The E2160 does not appear to have one, why the 2180?
Edit: moved to 8x333 and so far no more voltage
Also the voltages are vCore, (G)MCH, PCI-E, FSB, and RAM
2) Much better results with 8x......now at 360FSB..trying 370!!!!!