Well, I've finally installed SLI system for the first time in my life The hardware is provided by Jacob Freeman @ EVGA for some SLI enhancements, which we're planning to add to future versions of our EVGA Precision tool. This also means that there will be some multi-GPU related enhancements in RivaTuner. I've already added the following: - Power user oriented possibility to control clocks and fan speeds at driver level independently for each display adapter when SLI is enabled (by default changing settings on SLI master device mirrors them to all devices joined in SLI configuration as before (mirroring can be disabled via Power User settings), SLI slaves can be controlled independently of master by default). - Improved overclocking and fan control for multi-GPU systems when SLI mode is disabled. Now RivaTuner also provides driver-level overclocking and fan control for independent display adapters, not connected to Windows desktop (e.g. dedicated PhysX accelerators) I’m also planning to make some improvements in hardware monitoring module special for multi-GPU systems. Stay tuned!