-What speed is your CPU running at? Stock or overclocked, and if it's overclocked, by how much?
-Do you have your fahcore_a1.exe processes locked to specific cores, or are they just running unchecked?
If your processes aren't locked, you might be able to increase your performance by locking two fahcore_a1.exe processes to each core.
By locked, I mean having a particular process set to run only on a single particular core. Since you didn't understand what I said, I assume that means that they aren't locked. If you were to lock them, you might get better performance. Try going into Task Manager, and setting pairs of the fahcore_a1.exe processes to each of your cores. To do this, follow these steps:
-Click the name header to sort processes by name (so they don't move around).
-Right-click on the first one, select Set Affinity, and uncheck everything except for the CPU 0 box.
-Go to the next process and do the same thing.
-Select the next two and repeat, except this time leave CPU 1 unchecked instead.
-Do the same thing with the next two pairs, except using CPU 2 and CPU3 respectively.
Once you have done that, let it run for a bit and see if Fahmon reports better numbers. Be aware that as soon as you finish a work unit, the processes will close and a new set will start out without the affinity settings, so you have to make sure to check back before either of your currently-running clients finishes a unit.
I checked the affinity and there are already locked. since taking that pic the ppd as risen a little to 1184 on smp1 & 1400 on smp2, for a total ppd of 2325 - 2400.