Originally Posted by maarten12100
Originally Posted by rickcooperjr
290x / 290 are notoriuos about sound crackling in crossfire and horrible stutter / screen tearing with Vsync and frame pacing so you need to do your research before you blow off a known issue
like that and tell someone theyre mobo or something is bad or messed up.
give a search of 290 or 290x crossfire sound crackling and there will page after page of it has to do with no longer using the crossfire bridge cable and something about bleed over caused while running vsync or frame pacing.
I need to do my research? I had 2 R9 290's and didn't have the problem therefore I didn't really think about those problems being common. Still sound crackling is extremely weird since you run the sound from a different source and the 290(x) doesn't do anything with it yet.
Are there any common grounds on the CF finger maybe they are missing that but again I can't remember this being discussed in forums we however had black screening. Maybe it is some new issue that came with more recent drivers.
What are you refering to CF finger there is no tab / finger for crossfire bridge cable to be attached to so the CF finger common ground does not exist on r9 290 or 290X they crossfire thru the motherboards PCIe apparently you did not have a 290 or 290x in crossfire or even have one period or you would plainly see this and know this.The issue has been ever since the cards were released that this issue has been going on on all drivers upto present so older drivers or recent / newwest drivers makes no difference issue is still there about sound crackling / stuttering with Vsync or frame pacing on.
That Crossfire bridge we all know and learned to love is slowly being phased out, starting with R9-290/290X. In the near future Crossfire bridges will be thing of the past as AMD is going to run Crossfire over the PCI Express bus. Especially with standards like PCI-E Gen 3.0 there's plenty of bandwidth there, but even at Gen 2.0, it really is not an issue. For the R290 cards setup in Crossfire, PCIE Gen 3.0 is recommended. What if you do not have PCIE 3.0 compatibility ? Well, the bus will revert to Gen 2.0 which will probably not make more then a marginal difference as it is really hard to flood even two x8 Gen 2.0 ports.
Give this a read and maybe you would understand crossfire tab / finger and bridge cables are gone on 290 / 290X as that was one of the main changes they did involving crossfire on 290 / 290X. http://www.guru3d.com/articles_pages/radeon_r9_290_crossfire_review_benchmarks,2.html
I would like to know what cards you were testing in crossfire apparently it wasnt 290 or 290x because you claim it still had the crossfire tab / finger for crossfire bridge cable AKA your comment ( Are there any common grounds on the CF finger maybe they are missing that ).Edited by rickcooperjr - 1/31/14 at 4:51pm