Mobo and GPU's question...

[LiengLiengZA]

Morning peoples,

My son's PC motherboard is ASRock Fatal1ty Z77 Performance and he has 2x 7850's in Crossfire.
Question...one PCI lane is 3.0 x16 and the other lane is 2.0 x4..


If he is running crossfire is he running x4 speed for both cards?


Reason I'm asking is because Far Cry 5 is lagging and stuttering.
Everything is at its lowest setting possible and have watched youtube for any other help but to no avail.
Hasn't done it with other games like NFS Payback,ACO when in crossfire.


Do you think I must take one card out and see if it runs better or get him a better card?


Other specs are:

i5 3470

10GB DDR3 Ram

750w HCG PSU

 

[ArmatageShanks]

Morning peoples,

My son's PC motherboard is ASRock Fatal1ty Z77 Performance and he has 2x 7850's in Crossfire.
Question...one PCI lane is 3.0 x16 and the other lane is 2.0 x4..


If he is running crossfire is he running x4 speed for both cards?


Reason I'm asking is because Far Cry 5 is lagging and stuttering.
Everything is at its lowest setting possible and have watched youtube for any other help but to no avail.
Hasn't done it with other games like NFS Payback,ACO when in crossfire.


Do you think I must take one card out and see if it runs better or get him a better card?


Other specs are:

i5 3470

10GB DDR3 Ram

750w HCG PSU

Yes the lanes will be at their specified speed, this wont be the end of the world, nothing wrong with the cards, especially if origns play's well and you noted that the game is stuttering on the lowest setting, with your hardware that points to a issue with the game itself, a quick search reveals you are not alone and solutions are available.

In short, Google is your best friend for these things.

 

[DanDango]

Morning peoples,

My son's PC motherboard is ASRock Fatal1ty Z77 Performance and he has 2x 7850's in Crossfire.
Question...one PCI lane is 3.0 x16 and the other lane is 2.0 x4..


If he is running crossfire is he running x4 speed for both cards?


Reason I'm asking is because Far Cry 5 is lagging and stuttering.
Everything is at its lowest setting possible and have watched youtube for any other help but to no avail.
Hasn't done it with other games like NFS Payback,ACO when in crossfire.


Do you think I must take one card out and see if it runs better or get him a better card?


Other specs are:

i5 3470

10GB DDR3 Ram

750w HCG PSU

Test your gpu (MSI RX580 8GB Gaming X) in his rig or test game on your pc. If it's not the gpu, check cpu temperature.

Minimum Requirements
Core i5-2400 3.1GHz/FX-6300/
GeForce GTX 670/Radeon R9 270 v2 2 GB GD VRAM hardware
8 GB ram

http://www.game-debate.com/games/index.php?g_id=31290&game=Far Cry 5

 

[Rickster]

Crossfire profile for FC5 maybe isnt optimised yet.

Are the drivers up to date?

 

[Ghost729]

This should explain things

https://www.youtube.com/watch?v=2-2rwsZ2kSg

 

[LiengLiengZA]

I will try with my RX580 in his PC and vice versa and the latest driver I'm gonna install tonight.
Just gonna disable crossfire first and check what happens and then install driver and enable crossfire again.


I'm gobsmacked by this.

 

[LiengLiengZA]

Update for everyone that replied...I disabled crossfire and it's working flawlessly.

I have the latest driver...will install later and give feedback...Like Rickster said...the driver I have isn't optimized yet so I will install new driver and give feedback.

So in short if you run crossfire and have lag just disable your crossfire.