So I wanted to buy a new GPU, so i did some research for compatable GPU's with my motherboard and i found a GTX 710, its Pci-e x8 and i have a pci-e x16 slot but i read it will still work, i thought i had everything figured out and was ready to buy it, but i wanted to see if it was compatable with my psu, like does it have enough cords or whatever to power it and i tried finding it myself but i couldnt, ill link my specs. Please someone help me asap and tell me if this gpu is compatable with My PowerSupply.
My Power Supply: https://www.complinkusa.com/power-supply/desktop-power-supply/dell-desktop-power-supply/l305p-03-dell-305w-power-supply-for-optiplex-330-740-745-755-760-780-960-gx620-gx280-mt-refurbished.html
My Motherboard: (Dont know the link, but its a OptiPlex 760)
My Current GPU: https://www.amazon.com/ATI-Radeon-Express-DMS-59-Profile/dp/B004QPR04O/ref=sr_1_1?ie=UTF8&qid=1508376805&sr=8-1&keywords=ati+radeon+hd+3450
The GT 710: http://www.dell.com/en-us/shop/accessories/apd/a9004425?ref=p13n_std_pdp_mv&c=us&cs=19&l=en&s=dhs
My Power Supply: https://www.complinkusa.com/power-supply/desktop-power-supply/dell-desktop-power-supply/l305p-03-dell-305w-power-supply-for-optiplex-330-740-745-755-760-780-960-gx620-gx280-mt-refurbished.html
My Motherboard: (Dont know the link, but its a OptiPlex 760)
My Current GPU: https://www.amazon.com/ATI-Radeon-Express-DMS-59-Profile/dp/B004QPR04O/ref=sr_1_1?ie=UTF8&qid=1508376805&sr=8-1&keywords=ati+radeon+hd+3450
The GT 710: http://www.dell.com/en-us/shop/accessories/apd/a9004425?ref=p13n_std_pdp_mv&c=us&cs=19&l=en&s=dhs