SOLVED-Fatal1ty Z87 Killer wont use all PCIE lanes

That would definitely do it, unbelievable...   

Edited by Xaltar - 03 Dec 2016 at 2:20pm

omega552003 wrote: Update, So the guy that I bought the CPU from neglected to tell me that he delided it and up the CPU's PCB in the process, I had no clue it was delided until I pulled it off to swap cpus. I verified it by getting an i3-4330TE and instantly the cards crossfired. Look at the closest edge and you can see scrape marks on the PCB

OMG that is terrible! What a loser, to sell that to you in that condition! Not only did he not tell you it was delidded, but damaged too. I hope you can do something about it.

Thanks for letting us know what happened!  Your integrity is so far beyond that of the guy that sold this to you, I hate mentioning him in the same sentence.

If you right click on your picture, and select View Image, you can then click on the image to magnify it. That really brings the damage out... what a butcher job!!

This is why I'm not a fan of delidding. It can be done without damaging the CPU, but takes care and everyone cannot do it correctly. Plus that is only the start of dealing with needs of a delidded processor.

So its not the drivers, GPUs, Windows 10, or bios version(1.60 and 170 have the same results). I swapped them over to a different system (Dell T3500) and instantly they crossfired. 

omega552003 wrote: I'm giving up on this board. I Did a reinstall of windows, then installed the drivers and no crossfire setting available and the PCIE lanes where 8x for slot 2 and 1x for slot 5.

Meh, you're giving up too easily.

I just spent a hour Googling this x1 with your second card.

It's normal with new GPUs when not in an intensive game/load for the second card to drop back to x1 conserving power. Or, the game isn't optimized for crossfired Fury X's.

Grab a utility that live stats the PCIe x? usage your cards are allotted, begin gaming and watch it go to x8 and x8.


NOTE: This is assuming the ONLY two cards plugged into the PCIe slots of your MB are the crossfired Fury Xs. That is the only way you'll split your processors 16 lanes down to two x8.



Post back what you observe please.

I'm giving up on this board. I Did a reinstall of windows, then installed the drivers and no crossfire setting available and the PCIE lanes where 8x for slot 2 and 1x for slot 5.