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Old September 6, 2012, 01:45 PM
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SKYMTL SKYMTL is offline
HardwareCanuck Review Editor
Join Date: Feb 2007
Location: Montreal
Posts: 13,622

Heat. Run two instances of GPU-Z, one on each core. If the cores are hitting above 80 degrees, it is very likely that the GPUs are reaching their Power Limit and clocking to their default (lower) speeds.

Also, ensure that the system "sees" two GPUs. It could very well be that it is only registering one card. To do this, go into Device Manager and ensure two GTX 690 instances are there.

Finally, go into the NVIDIA Control Panel and click on "Configure SLI, PhysX & Surround". Ensure SLI is set to "Maximize 3D Performance" and PhysX is set to CPU.
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