Passively Cooling Nvidia's GeForce GTX 750 Ti...With An AMD Sink

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I would put a fan on the passive heatsink and use HWiNFO to set it to kick in at ~75°. That way you still get silent cooling but if it gets too hot you can still cool it.
 
The fan gives you 1-2% more gaming performance in the best case. If you have a good airflow inside, this fan brings nothing with exception of noise 😉
As described in the article - Nvidias boost is the better controller 😉
 
Also, be careful on modifying those holes. You might hit some copper vias and plating bars, that would reder the card useless. Maybe use an X-ray to verify those PCB though...
 
"The GeForce GTX 750 Ti is typically a little slower than AMD's Radeon HD 7850. But that Pitcairn-based board can't be cooled passively."http://www.newegg.com/Product/Product.aspx?Item=N82E16814131500So...apparently it could, but no longer can be (the product even disappeared from PowerColor's website).
 
The next is a AMD FirePro V3900-750 Ti 😀

Teaser:
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I have recently been doing some experimenting with LED lighting and large passive cooled heatsinks. One things I have found that is of note for people trying mods such as these is the large difference that SPRAYING the HS BLACK made to the temps. If you're using a HS that is designed for forced air cooling without good airflow, then you'll likely find the radiation limit of Ni plating hold you back. For example, with 8W of LED's, old 60W TDP Athlon HS with no fan fitted was resting at Circa 65C in still air. Adding a layer of Plasti Kote matt black dropped the temps by around 15 degrees C
 
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