Cheers, Pete.

Some of my favourite tips are:
Get Process Lasso from
www.bitsum.com. Set
standard core affinity for all POEM cores (ideally you have one CPU per WU) and for CPU-project cores if you have any left. Next set POEM to
standard priority high and
standard I/O priority high.
Try to get as many PCIe lanes as possible, x16 is best and has a significant impact. If possible PCIe 3.0x16 for any capable card.
Put NV cards on old CPUs, in relation they perform better (except for the 6xx cards that really live up with highly-clocking CPUs and PCIe 3.0). CPU load is high for NV, but you can safely clock GPU and Video-RAM to extreme levels.
For AMDs use highly clocked CPUs (best i7 using HT) and try using your fastest CPU-RAM on good OC timings (look for OC references on the web to avoid crunching errors). You can usually get to extreme clocks since CPU load and temps will be extremely low. However, clocking V-RAM has little effect. On 5870s, you can downclock RAM to cut temps.
For AMDs 12.11 beta is a must. I found several rigs show great run times on Win 8 (especially the 7970). But if you want to work with your rigs, Win 8 is a risk and at best in public-beta stage...beware of Windows update. :P
