Step8: Double click the file to run it, and then you can see that the graphic card of your mac has been switched. At this time, there should be a file called my.jar in folder of bin. Step6: Enter jar-cvmf manifest.txt my.jar and press Enter. Step2: Open the terminal, enter cd Desktop and press Enter. Modify the code in the last few lines of the text according to the tips. Open the files in src using Xcode or text editor. Step1: Click here to download this program and then unzip it. Sudo pmset -a GPUSwitch 2 //(Auto Switch Mode) Sudo pmset -a GPUSwitch 1 //(Force to use independent graphics card) Sudo pmset -a GPUSwitch 0 //(Force to use integrated graphics card) But you need to enter a long command and password manually every time, meanwhile, it is hard to modify. We’re able to solve this problem by entering command to terminal window so as to change the use of the graphics card. Right out of the box on your mac without the need to flash anything. PC ATI 5770/5870 cards flashed to work with Mac Pro. A card flashed with a Mac BIOS will be able to work at PCIe 2.0 speeds, supporting twice the data rate. But actually he didn’t use the graphics card. When installed in a Mac Pro a stock PC GPU will only be able to utilize the outdated PCIe 1.0 format.
A MacBook user reported that he have met such an issue that the independent graphics card was forced to open while he using his MacBook, and then the electricity of his MacBook is consumed so fast.
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