Originally Posted by
Laithan 
Furmark is a power virus. It is the easiest way to make your GPU throttle due to any combination of heat /lack of power, and
not a good test to verify a modified BIOS overclock.
I would recommend using GPU-z logging to monitor for throttling in the games that you play. You can also monitor 3DMark Firestrike. If you don't get throttling with real games and firestrike, then I wouldn't worry much about throttling in Furmark. Furmark/Kombuster (Kombuster recommended) is an extreme test that will NOT represent real world GPU workloads at all, but DOES produce the
worst case scenario with regard to throttling for most of its tests. Don't worry if you only throttle in this test
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There is one Kombuster test in particular that is especially good at causing throttling.
For testing: If you want to make your card throttle, just to see how quickly it does (even on water), do this: Make sure your power % slider is maxxed out to allow max power. Open MSI Afterburner and run KOMBUSTER from within MSI AB (launched with the "BIG K" in the MSI Afterburner GUI). Let it run for at least a minute. Watch for throttling, sometimes it take a minute or two if you are lucky. Most custom BIOS' will throttle almost instantly.. 300 seconds (5 minutes) is the "Torture test". Don't run it any longer than that. It is going to really stress your GPU. It is possible to prevent throttling in this test but it requires a LOT of power. The "Big K" test seems to run Kombuster with some especially demanding parameters which is why I recommend launching it this way. Plus you can use the MSI AB monitor to record the throttling (clear the results of the monitor after you start the test).
