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1, the H61 motherboard can plug GTX750ti, H61 chipset, the PCIE bus version provided is 2.0, GTX750ti can support PCIE3.0, 3.0 is backward compatible.
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2, with a more advanced core architecture, GTX750Ti performance is outstanding, GTX750Ti performance is between R7 260X and GTX650Ti-Boost.
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3, GTX750ti needs 6pin connector independent power supply, sufficient power supply is very important, it is recommended to use about 400W power supply; Brand power supply is generally relatively small, the original graphics card is not required to connect to the independent power supply, may not have PCIE power supply head, so after the GTX750ti, may need to replace the power supply or use auxiliary power line.