/ Sign-up
Your question

Motherboard PCIe x16 Slot stuck on x8?

  • Asus
  • Motherboards
Last response: in Motherboards
May 4, 2010 3:08:49 PM

I have an Asus P7P55D Motherboard and an Asus Gt220 gfx card, when i look in cpu-z, gpu-z and a couple of other programs it says my graphics card is running at 8x with a maximum of 16x, i dont have any other slots in use .... dont know whats going on!!!! nothing in the bios to change the link width ..! HELP!

More about : motherboard pcie x16 slot stuck

a c 313 V Motherboard
a b Ĉ ASUS
May 4, 2010 7:30:14 PM


Can u post a picture of GPU-Z?
May 4, 2010 9:05:00 PM

hi, actually, i appear to have gotten to the bottom of the problem.... it appears that it changes as i put different stresses on the graphics.... when i open up graphics card stress test, i swiftly changes from x8 reading in gpu-z to x16!.... weird... must be a mobo feature?
Related resources
a c 313 V Motherboard
a b Ĉ ASUS
May 4, 2010 9:09:25 PM

nVidia have something similar to the Cooal'n'quiet of AMD, that when u aren't using the GPU in load, the software reduce the performance of the GPU.

But in ur case is better that check in the BIOS the speed of the PCI-E slot, if is configured as x16 should not be worried.
May 4, 2010 9:12:32 PM

i couldnt see anything relating to the PCIe link in the bios, i could see the frequency and plug n play settings. ... my motherboard is such that even when theres 2 graphics cards, the primary slot stays at x16 anyway (in crossfire it would be x16 and x4) so i dont suppose i chould worry?
a c 313 V Motherboard
a b Ĉ ASUS
May 4, 2010 9:16:21 PM

If the specs of your mobo says that support x16 and x4, and Crossfire in x4 right, u should not be worried.