• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

2070 Super showing as PCI-E 4x in GPU-Z

mattius1989

mattius1989

mattius1989

Associate
Joined
8 Sep 2010
Posts
510
Location
Kent
I made the mistake of reading an article last week about how utilising PCI-E slots beyond the 16x for your GPU can cut down the available bandwidth. I had a network card and soundcard in my 1x slots.

I ran a 3D mark benchmark tonight that checks PCI-E bandwidth and it gave me a result of 3.06GB/s. To validate what PCI-E speed I was getting I checked GPU-Z and it stayed at x4 even under heavy load.

GPU is in the recommended top slot (16x) and I reseated it and checked unplugged/plugged in the PSU cables. I removed all other PCI-E devices and cleared my CMOS (shorted pin method). Still stuck on x4.

Has anyone had this before? It would be great if someone else with a 2070s and running at x16 could check their result in the aforementioned 3D Mark bench.

I've googled it death and can't find a resolution after trying loads of suggestions.

Spec is as per signature.
 
The only way it'd be running at x4 is if it's installed in the lower x16 length slot.

from the specs:
  • 2 x PCIe 3.0 x16 slots(support x16/x4 mode)
  • 4 x PCIe 3.0 x1 slots
  • 1 x M.2 slot with E key for Integrated Intel® Wireless-AC(CNVi) module only
The card needs to be in the top silver slot.

Have you tried the built-in load test in GPU-Z?
 
Heisenberg said:
Probably a GPU z bug. Compare your score on heaven benchmark with others scores in the big heaven thread.
Click to expand...

pandem0nium said:
The only way it'd be running at x4 is if it's installed in the lower x16 length slot.

from the specs:
  • 2 x PCIe 3.0 x16 slots(support x16/x4 mode)
  • 4 x PCIe 3.0 x1 slots
  • 1 x M.2 slot with E key for Integrated Intel® Wireless-AC(CNVi) module only
The card needs to be in the top silver slot.

Have you tried the built-in load test in GPU-Z?
Click to expand...

I'll run some benches and compare to typical results.

I've used the built in GPU-Z PCI-E test. The card is in the correct 16x slot.

The more I research this, the more I read about bent cpu pins. Now I think about it, I think a nudged a couple of the onboard socket pins when I put this build together. That was ages ago and I never saw any issues - maybe I've finally found one.

Tempted to take it apart and try to fix the pins if indeed bent. Looks like I could be losing up to 10% GPU performance if youtube videos are anything to go by.
 
Have you set it to x16 in the BIOS, I had same problem on different mobo .......had to set it in BIOS for it to work properly. Might be worth a look just in case.
 
mattius1989 said:
I'll run some benches and compare to typical results.

I've used the built in GPU-Z PCI-E test. The card is in the correct 16x slot.

The more I research this, the more I read about bent cpu pins. Now I think about it, I think a nudged a couple of the onboard socket pins when I put this build together. That was ages ago and I never saw any issues - maybe I've finally found one.

Tempted to take it apart and try to fix the pins if indeed bent. Looks like I could be losing up to 10% GPU performance if youtube videos are anything to go by.
Click to expand...

Hi, I had this problem also (except it was x8 speed instead of x4) and I'm sorry to say that it was indeed bent pins so I replaced the board and the problem was fixed.

I am cack handed and there was no chance of me fixing my **** up, so I bought another board.

To this day I don't know what I did wrong but the CPU installation was awkward, especially when putting the lever down. I had no problems this time.
 
dishwasherwong said:
Hi, I had this problem also (except it was x8 speed instead of x4) and I'm sorry to say that it was indeed bent pins so I replaced the board and the problem was fixed.

I am cack handed and there was no chance of me fixing my **** up, so I bought another board.

To this day I don't know what I did wrong but the CPU installation was awkward, especially when putting the lever down. I had no problems this time.
Click to expand...

:(

I'll run some benchmarks and see how much it's really impacting my performance. I am GPU limited in 99% of titles at 1440 ultrawide so it's likely I'm being impacted.
 
Before you go pulling your cpu out. Uninstall then reinstall the display driver. I had this problem a few years ago and a driver reinstall fixed it for me.
 
josey99 said:
Before you go pulling your cpu out. Uninstall then reinstall the display driver. I had this problem a few years ago and a driver reinstall fixed it for me.
Click to expand...
Just on this point, I tried different slots last night and each time it would load the desktop in low resolution/no display driver mode. At this stage, it would show pci-e 1.1 x1. Once the driver kicked in and the image restored to the true resolution, it went back to PCI-e 3, x4.
 
mattius1989 said:
I ran a Fire Stike Ultra benchmark and my score seems to correlate with those of reviews from when the 2070S came out +/- 100 points.
Click to expand...
Found how to compare my results with 3DMark. Average score is 6138 and my result is 6160.

Would you expect pci-e bandwidth to be a factor in these benchmarks?
 
You must log in or register to reply here.
Back
Top Bottom