Booting motherboard with more than 2 GPUs - need extra 4-pin (female) Molex cable?

digitalx3r0digitalx3r0 Member Posts: 11
I'm following this guide and I've hit a wall:
https://forum.ethereum.org/discussion/11085/how-to-build-186-6-mh-s-970-watt-power-ethereum-etc-exp-mining-rig

I can get 2 GPUs going with the H97 Anniversary mobo, and EVGA PSU, but when I connect any more and try to boot, straight away I get a startup message saying I need to connect an extra Molex cable from the PSU into the mobo.

This is the pic of the motherboard:
http://www.sferis.pl/pictures/u2/H0/340251-112322-product_original-plyta-glowna-asrock-h97-anniversary-h97-lga1150.jpg
It's a male, 4pin, so I apparently need a female Molex to EVGA PSU 6pin? This doesn't seem to exist, I can only find PSU 6pin to Male Molex

Like this:
http://www.ebay.co.uk/itm/LP4-Molex-to-6-Pin-PCI-Express-PCIe-Graphics-Card-Power-Cable-Lead-005393-/191767607361?hash=item2ca63d7841:g:qgAAAOSwhkRWfc-V

What do I do?

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