msi geforce 760 on pci-e 2.0 slot?



regardless of compliance with PCI-E standards the PCI-E slot for graphic card (x4, x8, x16) should give 75w of power (max). if fewer lanes will give you much lower power then you can't use x4 and x8 slot for graphic card at all.
 

KA2

Reputable
Dec 4, 2014
16
0
4,520
fewer lanes --> fewer graphics power (because of less bandwidth transfering data) and less power consumption than on a PCI 3.0 slot

simple as that
 


if fewer lanes provide less power then how will graphic card would work with slot with x4 and x8 configuration? less bandwidth throughput? yes. but less power? no. regardless of PCI-E standard used on the motherboard the power consumption of the card will not change.