GPU running in PCI-e 2.0 not 3.0

The Good Guy

Commendable
Dec 20, 2016
16
0
1,520
My GPU (Winforce 970) seems to be always running in pcie 2.0 mode. When I go to my mobo settings there are only options for pcie 1.0 and 2.0.
From the specs of the motherboard I gather it supports pcie 3.0.
Any idea on how to fix this?

PC:
Asus z97m-plus
Gibabyte Gtx 970 Windforce
Core i3 4160
 
It could be a bios update? But honestly if everything works there is no point in pursuing this.

There is zero performance loss using PCIE 2.0 with a GTX 970.
In fact you could run SLI GTX 970 wth PCIE 2.0 x8 for both cards, which is half the bandwidth you're currently allocating, and still not bottleneck the GPUs.
 

The Good Guy

Commendable
Dec 20, 2016
16
0
1,520

Thanks Blackbird! There seems to be some power saving feature that keeps the card at PCIe 2.0/1.1 while it's in idle. Under load it goes to 3.0.