I have this HP 285 G3 and recently added a 1070 8GB with using the sata power of the board with a sata to 8 pin conversion:)
I read this post about external power use and strangely it says the GPU will first draw from external then PCI-e. But how come my 1070 does not crash and runs fine from the adapted sata?
I was thingking it might just draw from wherever it is available, in my case from the board 75W + the SATA 54W.
https://www.nicehash.com/blog/post/why-should-you-not-power-usb-risers-with-sata-power-connectors
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