Connecting GPU to PSU

[piyush2903]

I have bought Gigabyte GTX 970 Windforce and I am using Seasonic MII12 Evo 750 PSU.
I am having trouble connecting graphics card to my PSU as connecting them won't allow my PC to start and as soon as I disconnect it PC starts. As I googled about it found out that I am doing something wrong with the connecting could Someone please explain we how to connect 1X 6 PIN + 1X 8 PIN to my PSU.

Please find the picture of all the connectors I am having right now with me in the attachment.
Cable 1 -
Cable 2 -
Cable 3 -
Cable 4 -
Cable 5 -

- - - Updated - - -

Also I have 8 Pin in my PSU.

 

[chimera201]

Shouldn't they be longer? Like 55cm + 10cm. You should have 6 of them.

*seasonic.com/main/wp-content/uploads/2015/04/PCIE-6-8-PIN-1-A1.png