new to mining. dual psu tips please

[yslyung]

hello everyone.
as per title a newbie here.

bought myself some gfx cards, mobo, cpu, ram, psu and so on. mining ltc atm.

would appreciate if someone could point me to the direction on how to hook up dual psu's to power my gfx card without burning the psu or mobo.

tried to google around but could not find a good answer to it.

I'm sure there are lots of pros here have done it successfully without mesaing anything up.

I have 7 x r9 290, 2 x corsair axi 1200w + cooler master 850w psu & 2 mobo. I think the psu's have enough to power the cards but not too sure how to connect them.

answers, tips, advises & a pictorial guide will be greatly appreciated .

thx in advance