Is my crossfire working properly?! Tags: Radeon Crossfire PCI Express Graphics Last response: October 6, 2009 3:32 PM in Graphics & Displays Share aberchonbie October 6, 2009 7:13:37 AM I'm just wondering if my crossfire is working correctly because i ran gpuz v. 0.3.5 and it showed my second card running at pci-e 2.0 x4 not x16!! running a email@example.com, 8gbddr2 800, antec tpq1000 psu, and most importantly a dfi lp dk x38-t2rb I've attached a screenshot.. First gpuz is selected on the first 4850 and the second is on the other 4850.. Crossfire is detected but not at full pci-e 2.0 x16 speeds! The BUS Interface on the second card reveals: PCI-E 2.0 x16 @ x4 2.0 Can you tell me if there is something wrong? Maybe there is something i need to turn on in BIOS? Not sure b/c in CCC Crossfire is turned on.. Can you guys help me? More about : crossfire working properly michaelmk86 October 6, 2009 7:42:42 AM Your mobo support 2 PCI Express x16 slots (PCIE 1 and PCIE 3) - 2-way CrossFire at x16/x16 bandwidth, so you need to turn on something in the BIOS or something is wrong. ubernoobie October 6, 2009 12:10:32 PM should be right because x38 crossfire at 8x/8x (i think) so pci-e 2.0 x4 is pci-e x8 Related resources XFX 7970 crossfire not working properly - Forum Is crossfire working properly ? - Forum Both Crossfire 5850's AND 6850's NOT working right??? properly powered - Forum ATI Crossfire not working properly - Forum How do I setup crossfire properly ? - Forum Can't find your answer ? Ask ! Get the answer aberchonbie October 6, 2009 3:27:33 PM uhh no.. pretty sure x38 is at x16 speeds.. jsh1284 October 6, 2009 3:32:31 PM Yeah, most mobos will clock down the bus speed in crossfire mode. Most will actually clock them down to 8x - 8x .. or sometimes 16x - 8x. But usually it's the first of the two. Your system is fine. Can't find your answer ? Ask ! Publish Related resources: ForumCF not working properly Forumtrouble understanding if 4850CF is working properly ..signs point to no Forum4890CF not working properly ? ForumDual mobility 5870's not working properly !! please help :( ForumWhy doesn't Crossfire /SLI work in a proper way? ForumNew mobo, crossfire not working . ForumIs my 5970 working properly ? ForumHd 3870 crossfire not working ForumHow to properly apply thermal paste ForumCrossfireX doesn't work properly ForumGtx 670 sli 3840x1920 Forum4890 crossfire recommended setup Forum[Solved] GPU fan stopped working...heat or power? Forum[Solved] 4870 in Crossfire or 5850? Forum5850's in Crossfire... More resources Read discussions in other Graphics & Displays categories Ati GPUs Graphics Cards Gtx HD Monitors SLI Crossfire Tuner Cards Radeon Video Diamond Multimedia Matrox Nvidia Palit PowerColor Asus Games !