Building Zcash Rig - questions on power consumption

[VoskCoin]

If I have 5x Sapphire Radeon VAPOR-X R9 280X and 1x Nvidia 1080 TI what are some of my best options for a PSU?

https://www.newegg.com/Product/Product.aspx?Item=N82E16817151102 I have this currently but I imagine this will not be sufficient for all 6 cards only 5?

[philipma1957]

If I have 5x Sapphire Radeon VAPOR-X R9 280X and 1x Nvidia 1080 TI what are some of my best options for a PSU?

https://www.newegg.com/Product/Product.aspx?Item=N82E16817151102 I have this currently but I imagine this will not be sufficient for all 6 cards only 5?

dude the r9 280x pull tons of power


you need this psu

evga 1300 g2

https://www.newegg.com/Product/Product.aspx?Item=N82E16817438011&ignorebbr=1&cm_re=evga_1300_g2-_-17-438-011-_-Product


and that is for the five 280x cards

I wonder what  mobo do you have,


I would consider a separate build for the 1080 ti

[Elder III]

At stock a R9 280X pulls ~250 watts each and a GTX 1080 Ti is also pulling ~250 watts. That's 1500 watts of juice right there from your GPUs alone. You can undervolt, reduce the power limit % etc, but you still will need a beefy PSU to handle those 6 GPUS.  You also need to make sure you have enough PCIE connectors since the GTX 1080 Ti uses 2 and at least some (maybe all) R9 280Xs use 2 connectors as well.

[VoskCoin]

If I have 5x Sapphire Radeon VAPOR-X R9 280X and 1x Nvidia 1080 TI what are some of my best options for a PSU?

https://www.newegg.com/Product/Product.aspx?Item=N82E16817151102 I have this currently but I imagine this will not be sufficient for all 6 cards only 5?

dude the r9 280x pull tons of power


you need this psu

evga 1300 g2


and that is for the five 280x cards

I wonder what  mobo do you have,


I would consider a separate build for the 1080 ti

processor Intel Core I3-4160 Processor 3.60 GHz, 2-Core LGA1150 Socket, Hyper-Threading


MB ASRock H81 Pro BTC Mining LGA1150 HDMI SATA 6Gb/s USB 3.0 ATX Board

What are your thoughts?

What psu for the six cards then?

[VoskCoin]

At stock a R9 280X pulls ~250 watts each and a GTX 1080 Ti is also pulling ~250 watts. That's 1500 watts of juice right there from your GPUs alone. You can undervolt, reduce the power limit % etc, but you still will need a beefy PSU to handle those 6 GPUS.  You also need to make sure you have enough PCIE connectors since the GTX 1080 Ti uses 2 and at least some (maybe all) R9 280Xs use 2 connectors as well.

So then I should simply run 2 PSU? like 2 of the link I posted in OP?

[Elder III]

At stock a R9 280X pulls ~250 watts each and a GTX 1080 Ti is also pulling ~250 watts. That's 1500 watts of juice right there from your GPUs alone. You can undervolt, reduce the power limit % etc, but you still will need a beefy PSU to handle those 6 GPUS.  You also need to make sure you have enough PCIE connectors since the GTX 1080 Ti uses 2 and at least some (maybe all) R9 280Xs use 2 connectors as well.

So then I should simply run 2 PSU? like 2 of the link I posted in OP?

I recommend a setup like this --- http://www.parallelminer.com/product/all-aluminium-6-1-gpu-open-air-mining-case-w-6-usb-risers-1-1200w-psu-kit-eth-zec/ --- with a smaller ATX style PSU to run the motherboard, CPU etc and 1-2 GPUs, with the other GPUs off the server PSU. Get one of these also to make it allot easier --- https://www.amazon.com/Add2PSU-Multiple-Power-Supply-Adapter/dp/B009P98Q8U --- makes both PSUs act as one when you turn your rig on.

[VoskCoin]

At stock a R9 280X pulls ~250 watts each and a GTX 1080 Ti is also pulling ~250 watts. That's 1500 watts of juice right there from your GPUs alone. You can undervolt, reduce the power limit % etc, but you still will need a beefy PSU to handle those 6 GPUS.  You also need to make sure you have enough PCIE connectors since the GTX 1080 Ti uses 2 and at least some (maybe all) R9 280Xs use 2 connectors as well.

So then I should simply run 2 PSU? like 2 of the link I posted in OP?

I recommend a setup like this --- http://www.parallelminer.com/product/all-aluminium-6-1-gpu-open-air-mining-case-w-6-usb-risers-1-1200w-psu-kit-eth-zec/ --- with a smaller ATX style PSU to run the motherboard, CPU etc and 1-2 GPUs, with the other GPUs off the server PSU. Get one of these also to make it allot easier --- https://www.amazon.com/Add2PSU-Multiple-Power-Supply-Adapter/dp/B009P98Q8U --- makes both PSUs act as one when you turn your rig on.

Is there any real difference when adding the add2psu as opposed to just having the PSU x2 activate simultaneously?