AsRock 970 Fatal1ty Crossfire

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   3dmark is functionning hardly and it takes before the system runs the four test.

However I am assuming the crossfire functions correctly since Total War Warhammer sees a clear improvement thanks to the CrossFire. Not as far as I hoped, however Total Wars are very CPU heavy.

Does any of you know which FPS game as a proper CF support that I may test?

I'm stating FPS since they generally are non CPU-heavy, so, logically, should benefit the most out of CrossFire (I suppose...)

Thank you a lot for your help by the way.

As I mentionned, the CMOS clearing is probably the thing that made it functioning. 

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dinin70 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2016 Status: Offline Points: 48	Post Options Post Reply Quote dinin70 Report Post Thanks(0) Quote Reply Topic: AsRock 970 Fatal1ty Crossfire Posted: 04 Dec 2016 at 3:44am
	3dmark is functionning hardly and it takes before the system runs the four test. However I am assuming the crossfire functions correctly since Total War Warhammer sees a clear improvement thanks to the CrossFire. Not as far as I hoped, however Total Wars are very CPU heavy. Does any of you know which FPS game as a proper CF support that I may test? I'm stating FPS since they generally are non CPU-heavy, so, logically, should benefit the most out of CrossFire (I suppose...) Thank you a lot for your help by the way. As I mentionned, the CMOS clearing is probably the thing that made it functioning.

dinin70 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2016 Status: Offline Points: 48	Post Options Post Reply Quote dinin70 Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 11:00pm
	By the way, update. After having shut down the Computer. Warhammer Total War sees a very nice improvement: +25% FPS with crossfire. This hadn't happen before so following a complete reinstallation with CMOS clearing helped. For Overwatch I see two trends loads of people saying it's not optimized, other saying it functions... Can't see the Truth out there... I'm downloading 3dmark

dinin70 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2016 Status: Offline Points: 48	Post Options Post Reply Quote dinin70 Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 10:56pm
	Very good point Xaltar. I'll try this now

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22943	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 10:13pm
	I think you misunderstood Parsec's explanation. You mentioned not being able to run both cards @x16, he then clarified that this is not possible due to the amount of PCIe lanes available from the chipset. That does not mean your setup is performing incorrectly. In fact looking at your other thread everything appears to be functioning as it should with regards to hardware. There is no consumer grade system currently on the market that can run 2 GPUs at x16 for the same reasons Parsec noted. Currently only Intel's socket 2011 CPUs provide enough PCIe lanes for x16 + x16 configurations. Ultimately it means nothing as both crossfire and SLI work optimally at x8 + x8 and x16 + x16 does not actually provide any better performance. From your other post on the AMD forums (please link to such things in the future) it appears your GPUs are indeed running at PCIe x8 2.0 speeds which is exactly as they should be. Please download, install and run 3d Mark Firestrike and run it with crossfire enabled then disabled and check your scaling in a benchmark that is actually optimized for crossfire. If you do not see positive scaling here then you have a problem, if the scaling is positive however then your titles simply do not support crossfire properly.


dinin70 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2016 Status: Offline Points: 48	Post Options Post Reply Quote dinin70 Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 9:57pm
	Hello, So here is what I exactly did: - uninstall all drivers through the control pannel - reboot - reboot in safe mode - DDU clean and shutdwon - shutdown - clear CMOS, take off card 2 - set the RAM to XMP 1.3 - reboot - update bios to v1.2 - Reboot - install last drivers, last ones. - Reboot - check everything is installed properly (control pannel / Radeon Settings) - shutdown - plug second card - on startup screen flashes black as it recognizes the second grapic card. And still: - negative scaling in Overwatch for about 30 FPS less - minimal gain (a couple of FPS) on Warhammer Total War. Maybe I'm only playing poorly optimized for Crossfire...

dinin70 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2016 Status: Offline Points: 48	Post Options Post Reply Quote dinin70 Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 8:32pm
	Hi wardog. yup, that's my post at AMD. Reason why I stated at AMD no one talked about chipset limitation. there are some things that can be found in there, but nothing that seems to a noob like me relevant. we tested the cpu load, and that's actually it... have 1.2 bios installed. I saw there is a 1.3 but I lack a usb key... Edited by dinin70 - 03 Dec 2016 at 8:36pm

wardog Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 15 Jul 2015 Status: Offline Points: 6447	Post Options Post Reply Quote wardog Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 8:13pm
	@ Xaltar et all https://community.amd.com/thread/208578

dinin70 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2016 Status: Offline Points: 48	Post Options Post Reply Quote dinin70 Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 7:38pm
	Hi Xaltar, 1. Both are the same Sapphire Fury nitro trixx oc 1050mhz 2. I didn't clear cmos 3. I tested on Overwatch, Unreal 3, Unreal tournament (but it's in pre alpha, so I don't expect anything out of it) and warhammer total war. All of them provided negative scaling. 4. I'm using a corsair rm1000x 5. I did a clean install with ddu: Uninstall AMD radeon display driver only. Reboot safe mode, use ddu (clean and restart), put antivirus off, installed latest drivers. All if this with both cards plugged. thanks!

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22943	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 5:10pm
	You should not be getting negative scaling even at x4 + x4. You would see lower performance (marginally) than another system running at x8 + x8 but certainly not negative scaling. Parsec's description explains how the lane allocation works, x1, x4, x8, x16 etc but when it comes to crossfire x4 + x4 is the minimum requirement. In your case you are running at x8 + x8 which should be MORE than adequate to provide a significant performance boost with the 2 GPUs running in crossfire. Something is wrong with the way you have it set up. With that in mind lets run through a few things, I will keep it fairly simple as you stated your knowledge is a little shy of pro 1. Are both GPUs the same model? (please provide make and model for both) 2. Did you clear CMOS when you installed the second GPU? (it is always good practice to do so when installing major hardware like a GPU, RAM or CPU) 3. Is this scaling being tested in a single title or is it across multiple games? (many games are poorly optimized for multi GPU use and often demonstrate negative scaling as a result) 4. What power supply are you using? (if it is not adequate for the GPU's power requirements they could be throttling and thus lowering performance) 5. Did you perform a complete fresh install of the graphics drivers? If not for number 5 then: Download DDU (display driver uninstaller) then boot into safe mode and run it. Remove all AMD graphics drivers from your system then reboot back into regular mode and install the latest drivers fresh. There is no reason why your system should not be able to properly run a crossfire setup, this is a resolvable issue so don't give up just yet Edited by Xaltar - 03 Dec 2016 at 5:11pm


dinin70 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 05 Jan 2016 Status: Offline Points: 48	Post Options Post Reply Quote dinin70 Report Post Thanks(0) Quote Reply Posted: 03 Dec 2016 at 4:44pm
	Wow, thank you a lot parsec. Such a detailed answer. I didn't understand everything but you're talking about high-knowledge-required stuff... I find rather misleading then to state the card is crossfire compatible. Your level of knowledge is far above the one of 99.9% of the people. If a company states crossfire compatible without any special mention, the card (or the chipset on the card) shouldn't be of any bottleneck. Anyway, I get the point. Rather upset however since it would be a suicide getting a 990fx board while Zen is some months ahead... I'll leave the second fury in a closet up until Zen comes out then. thank you a lot! At AMD no one really talked about the chipset possible limitation