ASUS MAXIMUS VI HERO not running ASUS GeForce GTX 770 DirectCU II in PCI-e 3.0 at x16

Grimsanta86 · Apr 17, 2014

I have just currently build a new PC using the MAXIMUS VI HERO mother board. I have had it running for about 2 days now. I have noticed that in the bios as well as GPU-Z it says that the card is running at x8 and in GPU-Z it says that it is in fact running at PCI-e 2.0 x8 mode while running the render test.

I was just trying to find out if there was any settings that I should check or how to go about getting this solved.

System Specs:

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor
Motherboard: Asus Maximus VI Hero ATX LGA1150 Motherboard
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory
Storage: Samsung 840 EVO 120GB 2.5" Solid State Disk
Storage 2: 1TB HDD
Video Card: Asus GeForce GTX 770 DirectCU II 2GB Video Card
Case: Corsair 300R ATX Mid Tower Case
Power Supply: Corsair Professional HX650W 80+ Gold Certified
Optical Drive: LG BH16NS40 Blu-Ray/DVD/CD Writer
Operating System: Microsoft Windows 8.1

rolli59 · Apr 17, 2014

Card in the primary slot closest to the CPU?

Grimsanta86 · Apr 17, 2014

Yes, forgot to say that it is in the #1 x16/x8 slot.

rolli59 · Apr 17, 2014

And those x8 reports are for it under load?

Grimsanta86 · Apr 17, 2014

Yes, I ran the render test from GPU-z to make sure and while it was running all it would register is PCI-e 2.0 8x

Here it is the GPU-z screen http://gpuz.techpowerup.com/14/04/17/hyt.png

This is the sensors screen http://gpuz.techpowerup.com/14/04/17/3w7.png

rolli59 · Apr 17, 2014

Both power connectors connected? Have you tried re installing GPU-Z, have seen it display wrong before.

Grimsanta86 · Apr 17, 2014

I can uninstall it and try it again.

rolli59 · Apr 17, 2014

I would and try to run a game as well!

Grimsanta86 · Apr 17, 2014

I just tried running Tomb Raide (2013), Crysis 2, Unigine Heavn Benchmark, Unigine Valley Benchmark, as well as a few random other games trying to keep the GPU at 100% load and it still only went up to PCI-E 2.0 x16 @ x8 2.0 even after a fresh install of GPU-Z.

rolli59 · Apr 17, 2014

So either there is something wrong with the card or the board (one or the other not connecting correctly in the slot), if you can try the card in another system and see if it takes the problem with it we would know. Odd chance there is a BIOS update for the board that would fix the issue, but before anything try reseating the card.

Grimsanta86 · Apr 17, 2014

I pulled it out and reseated it and it fired up as PCI-E 3.0 x16 right after. Funny thing being that I had pulled it out to check everything twice before that and all seemed well. Guess I must have gotten unlucky a few times. Thanks for all the advice.

Once again thanks for all your help.

rolli59 · Apr 17, 2014

Glad it was that simple, something preventing it from making full contact in the slot. Great looking rig by the way, enjoy!

Marcelo Martins · Apr 26, 2014

rolli59 :

I have a similar problem, my vga is running at x8 1.1! What can I do to run on x16 3.0?

I've done all the steps to take and place, but nothing worked ..

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ASUS MAXIMUS VI HERO not running ASUS GeForce GTX 770 DirectCU II in PCI-e 3.0 at x16

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