GPU-Z says my gpu is running at 4x instead of 16x(which it should be). WHY? I just learned this after a long time of having it like this. My mobo is Gigabyte GA-Z87X-UD5H. This is my first PC I built, the gpu is on the pci closest to the cpu. I dont know why its at 4x, it should be at 16x right?
Its a power saveing feature run furmark than re open gpu-z and gpu-z will show what you currently are running.
I thought that as well but gpu-z has a test that make it run at full speed and i run it and still says 4x. I will checkout furmark.....My gpu its evga gtx 770 4gb classified acx
My GTX 980 SC does the same thing, its normal.
@Nate1994 Ok thanks I just wanted to make sure because it was my first build and I want to make sure I am getting the best performance/experience with the hardware I have.
run something that uses GPU and look at the GPU-Z, if you still see it running @x4 then most likely you have inserted it into wrong slot that is only pci-e x4
Do you have any other pcie slots populated? Bandwidth is shared when other slots are populated.
Have you ever upgraded the BIOS on the motherboard or maybe run the "Intel® Chipset Device Software (INF Update Utility)" and obviously GPU drivers. Oh and set the power saving features under Windows to performance as another option. Correct slot has already been mentioned.
I know I had this happen a few years ago with a motherboard but I can't exactly remember what fixed it at the time but probably something like the above.
I have a wireless network adapter that is disabled in windows that is in the slot above the pci x16 lane. Is that causing the problem? Should I remove it?
I have not updated the bios on mobo and i have not run the intel chipset device software. gpu driver always up to date. How do I check the power saving features?
my wireless lan adapter was sharing the bandwidth. Where should I put it on my mobo so it does not effect my gpu?
According tot he manual the 3 PCI v3.0 x16 slots (the long ones) all share lanes so don't plug the wireless card in any of those. The primary 16X slot is the long slot nearest the CPU socket so that's where you should have the graphics card.
The 3 PCIe v2.0 x4 slots (the shorter ones) are not connected to the above slots in theory so shouldn't be limiting the lanes to the graphics card. So try each of those, though he top most slot near the CPU was the logical one to use.
There settings related to the PCIe slots in the BIOS which might affect the config but usually they are best left to auto.
@bimbleuk Thank you very much for the information. My gpu is in the the long lane closest to the cpu. The wireless network adapter was in the short lane above the lasne the gpu is in which is the closest lane to the cpu. According to gpu-z it was sharing bandwidth with my gpu because when i removed the hardware from the mobo the gpu went to 16x 3.0.