74 on each core is blow the throttle point for Intel CPU's so temp should not have affected it. Make sure your RAM is seated properly.
Reinstall the H60 (as far as I remember you have to orientate the backplate correctly else your temps will be all over the place). Go carefully and make sure its on tight.
Once seated correctly turn PC on and let it sit there for 10 min to warm up, once thats done note the temperature (I use Open hardware monitor its really good comes with a desktop gadget). 20-40c idle absolutely fine.
Next up you are going to want CPU-z and GPU-z
Open CPU-z and check A. your CPU is running full speed, B. your ram is showing up correctly and correct speed (may read it as 100 or so Mhz less than what it is dont worry about this).
Before running any games/benchmarks
Check you have decent Nvidia drivers (Latest ones seem to have issues try 334.67 Beta drivers). CLEAN INSTALL. For now set up your resolution if you have to and then under "Adjust image settings with preview" tick the box "Let the 3D application decide" you can set up your own settings later by ticking the "use the advanced 3D settings".
Ok so you now get to boot up a game or benchmark, I suggest using the Heaven 4.0 benchmark!
With GPU-Z open during the entire run i'll cover why in a mo.
Run Heaven 4.0 with the following settings:
Keep an eye on the temps, how choppy it is etc then come back to us and tell us your score/fps.
Why did you keep GPU-z open the whole time? Look at the sensors tab and click in the boxes to show avg/max etc, your looking for 96-99% GPU usage the entire time.
If GPU usage is not in the 90% range and looks like it fluctuated a lot then there might be some sign of an issue. (Could also just use the step below but I always use GPU-z first out of habit)
Next up you want either MSI afterburner/EVGA precision if you don't have it already.
Not only will this allow you to overclock your GPU easily but it gives you a handy on-screen display so you can see the usage/temps/core clocks etc while running games/benchmarks (EVGA 's OSD only works on 32bit games, a 64bit plug will be coming in the future). We will not be overclocking yet so don't touch any core/memory settings, power target though you can wack on maximum it won't harm the GPU, and the voltage you can put to full (It will use full volts by default this is just to make double sure it does).
You will want to go into the settings of whatever one you chose and goto the "Monitoring" tab select:
GPU clock > tickbox "Show in OSD
Memory clock > tickbox "Show in OSD
GPU temp > tickbox "Show in OSD
GPU usage > tickbox "Show in OSD
And while your in the settings goto the OSD tab and set whatever shortcut you want to Show/Hide it while in games/benchmarks.
Bring up the performance monitor (double click it in EVGA probably same for MSI)
full screen it. Keep it running, right click on the monitor>clear results, run the benchmark again. Immediately after exiting the benchmark (NOTING DOWN YOUR SCORE/FPS BEFORE YOU EXIT) right click on the monitor>pause.
You can now screenshot that and post it up here for us to check over
Good luck!
