Dual RX 470 Ethereum Miner - GPU installation - 3 of 4

I purchase some new gpu's to replace and upgrade the failed 280X Ethereum miner. Fitting the new GPUs into their new home. 3 of 4
Hardware I'm using in this video

Sapphire RX 470 4GB US http://amzn.to/2cREv0e UK http://amzn.to/2c6855b

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