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SOLVED-Fatal1ty Z87 Killer wont use all PCIE lanes
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Xaltar View Drop Down
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Joined: 16 May 2015
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Points: 27023 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 01 Dec 2016 at 1:44pm
OK, I hate to state the obvious here but have you checked the slots for dust and debris? 

PCIe slots are one of those things on the motherboard that can be quite tricky to diagnose issues with. So long as the first quarter of the slot is making proper contact the device will work, even if the rest of the slot isn't making proper contact. This results in an x1 connection to the device. Try removing the GPUs (both) and cleaning out the slots with a toothbrush and some compressed air (a can will do).
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Originally posted by omega552003 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. Wink Tongue

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.
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Originally posted by Xaltar Xaltar wrote:

OK, I hate to state the obvious here but have you checked the slots for dust and debris? 

PCIe slots are one of those things on the motherboard that can be quite tricky to diagnose issues with. So long as the first quarter of the slot is making proper contact the device will work, even if the rest of the slot isn't making proper contact. This results in an x1 connection to the device. Try removing the GPUs (both) and cleaning out the slots with a toothbrush and some compressed air (a can will do).

Yeah they are clean, I cleaned them out just to be sure, same deal , 8x and the other is 1x
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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. 

So that narrows it down to the CPU or the Motherboard. great...
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Update, So the guy that I bought the CPU from neglected to tell me that he delided it and Censored 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





Edited by parsec - 03 Dec 2016 at 12:13pm
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Originally posted by omega552003 omega552003 wrote:

Update, So the guy that I bought the CPU from neglected to tell me that he delided it and Censored 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! Thumbs Up Your integrity is so far beyond that of the guy that sold this to you, I hate mentioning him in the same sentence. Angry

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!! Pinch

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.
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Originally posted by parsec parsec wrote:

[I hope you can do something about it.

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


Hear Hear. I second that.

Hopefully you paid by Card so they can reverse the charge.
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Xaltar View Drop Down
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That would definitely do it, unbelievable... Angry  

I was going to suggest checking the CPU and socket then saw the solved edit. Some people... It would have been fine if you were told it was damaged and got it for cheap but this is just downright underhanded. 


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