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I can't work this, or it doesn't work

04-04-2013, 02:55 AM (This post was last modified: 04-04-2013 03:00 AM by xblizzDevious.)
Post: #1
I can't work this, or it doesn't work
This application is said to be what every user needs when running crossfire. So, I'm running crossfire; 3-way 7970. And it doesn't work very well. Micro-stutter is not exactly micro and it's doing my head in.

After some googling, I found RadeonPro on some forum. I quickly downloaded and installed it but all I seem to be able to do is display framerates (which is a struggle) and display GPU info. I can certainly see some differences in gameplay such as lower performance. But I can't see any improvements in microstutter. I've tried different options but I don't understand half of them (at least).

Could anyone explain how to use RadeonPro and how I can make all my games work as well as they can? The sort of games vary a lot. Things like Black Ops 2, Battlefield 3, Anno2070, TERA, Far Cry 3, Farming Simulator. All sorts. From a quick test of Modern Warfare 2, it seems that it works perfectly with 3-way crossfire but from the games I've tried, that is the only one that just works (without RadeonPro, not tried since installing)!



PS. Thought you may ask for system config so here it is:
MSI Big Bang Xpower II
Intel Core i7 3930k
32GB Corsair Dominator (4x8GB)
2 x 7970 XFX Double Dissipation
1 x 7970 XFX Black Edition (reference design)
A bunch of HDDs and an SSD. Oh, and an XFX 1050W PSU.

EDIT: I'm also using the latest beta drivers from the website so 13.3 beta. I DLed the catalyst profiles too, which is 12.11. I'm using the beta drivers as I tried without and that did not work well... I've gotten nowhere so far.
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04-04-2013, 12:27 PM
Post: #2
RE: I can't work this, or it doesn't work
For microstuttering will need to deal with advanced vsync options, I suggest you to start here:
http://www.radeonpro.info/features/dynam...e-control/
http://www.radeonpro.info/features/dynam...c-control/

What do you mean by lower performance? RadeonPro isn't supposed to have such noticeable performance hit.

RadeonPro Users Guide - RadeonPro Features
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04-04-2013, 12:45 PM
Post: #3
RE: I can't work this, or it doesn't work
When I say lower performance, I mean that my framerates seem to have dropped when I use RadeonPro. I use DXTory for capping my framerates and have it capped at 75 (I'm not too bothered by screen tearing, I use eyefinity. Haha).

Anyways, when I installed this, I closed DXtory and if anything, it's made things worse. My other issue is that I can't seem to save the global settings...

I'll just have a look at those two links and see what I can do.
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04-04-2013, 01:07 PM
Post: #4
RE: I can't work this, or it doesn't work
Well, as I said you shouldn't notice any performance hit, unless it is something related to tri-CF which I wasn't able to test, so if you're seeing that hit in performance you better not use RP.

I noticed this when started using Eyefinity, vsync doesn't seem to work, with or without RP.

Global settings, in contrast to Profile settings that are saved automatically, must be saved manually by clicking at Save changes you'll see at bottom of RP's window.

RadeonPro Users Guide - RadeonPro Features
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04-04-2013, 01:32 PM (This post was last modified: 04-04-2013 04:11 PM by xblizzDevious.)
Post: #5
RE: I can't work this, or it doesn't work
Yeah that button only appears sometimes. So I can change something and the button won't appear. But then I might change something else and it does appear. It doesn't make sense.

I use 3x1080P screens in portrait and it works wonderfully for every game that allows it. It's basically one huge '3k' screen. Thing is, one 7970 starts to struggle on some games. I heard that microstutter was REALLY bad with 2-way crossfire so I went for 3-way as that is supposed to pretty much negate it. Currently, I've got all 3 cards plugged in, and I've never known stuttering like it. It's unplayable on every game!

After some more playing around and testing, I cannot get playable gameplay from using RadeonPro OR with other framerate cap utilities and/or Vsync. I just had the sudden idea that it could have been something to do with overclocks, so I have just disabled all of those, however, from a quick test, there was no difference. Just going to try through the settings again with OCs off and on a bunch of different games again.

I don't suppose you know what sort of settings I might need or if you have a profile that will possibly work?

Also, I regularly get 'Desktop Window Manager has crashed' errors when I'm using eyefinity. Adding in the crossfire seems to make it slightly more regular. It's not usually a problem, but some games don't like it. Any idea about that?


EDIT: Well I have just OCed the CPU and taken out one of the GPUs just to try out 2-way crossfire... Now I'm baffled as the one game I've tried worked perfectly when it didn't with 3-way. I don't know if that was that the CPU couldn't keep up with the GPUs or if that's a faulty GPU. But it's certainly working now!

EDIT 2: Ok, that's 3 or 4 games I've tried now and each one works perfectly - this is without RadeonPro. Just DXtory limiting FPS to 75. I've just shoved the other 7970 into my friends computer and I'm about to test it to make sure it's OK. Is it most likely that one of these is at fault? Or would it be my motherboard, or what?

EDIT 3: Now I'm really baffled... I've just tested the one I put in my friend's computer, and it is OK, but doesn't overclock anywhere near as well. That in itself is not really a problem, though it will reduce my overall performance (though come on, 100fps at 3240x1920 with AA is NICE). Anyways, the reason I'm baffled is that it works perfectly with the other one. So that means that the micro-stutter only comes in when I've got 3 GPUs. I'm now going to try each slot configuration I can have as what I was using was not optimal for bandwidth (though still 8x so enough) as it was aimed at cooling. I hope I have not got an iffy motherboard!

EDIT 4 (hopefully last): It seems that the way the PCI-Express slots are set up on this board is that you have to put GPUs in the 1, 3, 5 or 7th and you can't put them in the others. I had 1st, 4th, 7th for optimal cooling but it just caused more than severe microstutter. I changed the PCI-E to Gen3 in the BIOS which I thought it already was, but that didn't fix it. I also disabled HPET which I've read can fix some microstutter. But neither of those did anything at all. I've now got the cards in slots 1, 5 and 7 which means that when all 3 are running, two will run a little hotter, but the first one will run nice and cool.

Thanks for your help, John (same name by the way, haha).

PS: Don't suppose you know if it's possible to allow this board to work the way I want, do you?
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04-05-2013, 01:25 AM
Post: #6
RE: I can't work this, or it doesn't work
Yeah, from what I've heard it can be tricky to get tri and quad CF working, not to mention hitting the sweet spot in regards to performance and smoothness.

RadeonPro Users Guide - RadeonPro Features
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