PCI-E Running at 4x instead of x16

SirConfused · 20 Jun 2013 at 19:47

So i'm not sure if this is in the right forum or not but after upgrading to a Gigabyte Z87X-OC GPU-Z is reporting that my 670 is capable of the pci-e 3.0 x16 that is stated on the spec sheet but is only running at x4.

Am I going to be losing out on any performance because of this? Is there something i've missed somewhere and accidentally throttled the pci-e slot without realising?

I've done as much reading as I can on this but I can't seem to find an answer on how much bandwith GPU's need to utilise in a single card setup.

Thanks for any light you folks can shed.

SirConfused · 21 Jun 2013 at 00:05

I'm judging by using GPU-Z while the gpu is loaded.

The card is in the 2nd slot as it won't fit in the first due to the placement of the pci-e 1x slot and after reading up it looks like I would only get 8x but that's still better than the 4x I'm currently seeing.

I only just fitted the CPU but I fear there may have been some over-tightening so i'll have a look in to that, unfortunately that can't be done until Monday though

SirConfused · 21 Jun 2013 at 11:29

Thanks a lot for the feedback guys, I actually ended up re-seating the cpu and pulling the cmos battery out last night anyway just in case. I could have sworn I read that the board was 16/8/4/4x so after yesterday I was expecting 8x from the 2nd slot.

I mostly put in in the 2nd out of convenience as that's how long my tubes were and I wasn't planning on draining my loop at the time and I do have a sound card in the pci 1x.

Looks like I will be draining the loop and shifting stuff around at some point when I get the time.

Thanks again for all the help folks.

SirConfused · 21 Jun 2013 at 12:25

Nelly said:
Put the soundcard in the 4th (last) orange slot, it should fix the problem, and then you can fit the graphics card in the 1st orange slot running at x16.

Thanks, i'll give that a try as a temporary solution.