I have an ASUS P2B - revision 1.02 that doesn't support voltages lower than 1.8. Right now I'm running my c2 566@850 using the MSI Master Slocket at 1.8 volts. As far as I have heard, then only slocket available that can make the correct voltage adjustments is the IWILL Slocket 3. Anyone know where I could locate the III (not the II)?