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Bought a 4,1 today! Upgrading it to a 580, x5690, 1tb ssd, usb 3 card, ac wifi, 32gb ram. : r/macpro
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![How to upgrade Mac Pro RAM and save lots of money [Video] - 9to5Mac](https://9to5mac.com/wp-content/uploads/sites/6/2019/12/DIMM-Channel-Configurations-Mac-Pro.png "How to upgrade Mac Pro RAM and save lots of money [Video] - 9to5Mac")