Trying to build a rig here

[RabbiTANK]

Hi pro miners in the house, I'm trying to build a rig for my little brother here and we got three gtx1660 super and one RX580 8gb, the first question is, can a 750 watt power supply carries the 4 graphics card for mining Ethereum? The second question is can I mine with RX580 in the mix with this Nvidia card on same motherboard?

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[Skinny48]

I believe 750 watts should be enough, since you plan on mining Ethereum those gtx1660 super would draw 119 watts max each, that's 357 watts and the rx580 8gb can draw up to 100 watts but with few power tweaks you can less it to 84 watts, all these equals to 441 watts, still enough power

[Claudio99]

AMD cards and Nvidia cards can be mixed together, I'm using RX5700 and RTX 2070 on nicehash miner and it works very well, other mining OS also supports mixing of graphic cards, you don't have to worry about this

[Claudio99]

The RX580 8gb can draw up to 150 watts if care is not taken, you need to reduce some clock settings to make it less power hungry and achieve 90 to 100 watts, you can browse around the web to find the perfect settings for the card

[Stanlo]

750 watts power supply is manageable for the graphic cards but I prefer 1000 watts for this setup, I like leaving behind 50% power behind for motherboard and also it will prolong the live of the power supply