zupernico Posted October 18, 2013 Share Posted October 18, 2013 Hi, I want to do crossfire with one that I have, I need powercolor in any of the two versions. Shipping to Spain. Thanks Link to comment Share on other sites More sharing options...
TerraRaptor Posted October 18, 2013 Share Posted October 18, 2013 You can CF 4870 of any brands. Link to comment Share on other sites More sharing options...
zupernico Posted October 18, 2013 Author Share Posted October 18, 2013 You can CF 4870 of any brands. Hi TerraRaptor, I have this: http://hwbot.org/submission/2428963_zupernico_3dmark_vantage___performance_radeon_hd_4870_14928_marks I have tried other brands and models, but it´s up separately, but not much in CF http://hwbot.org/submission/2435988_zupernico_3dmark_vantage___performance_2x_radeon_hd_4870_23993_marks Bluescreen 116 One of my 4870 was broken then I want to try the same model and brand. Thanks Link to comment Share on other sites More sharing options...
TerraRaptor Posted October 18, 2013 Share Posted October 18, 2013 Strange issue. Are you using clean install for CF setups? I had no issues when CF 4850, 4870, 4870x2+4870x2 4870x2+4870 all different brands. Are you sure that you have no issues with PSU and bridges? Why you use PCI-E x8 for CF setup in your second screen? Link to comment Share on other sites More sharing options...
zupernico Posted October 18, 2013 Author Share Posted October 18, 2013 Strange issue. Are you using clean install for CF setups? I had no issues when CF 4850, 4870, 4870x2+4870x2 4870x2+4870 all different brands. Are you sure that you have no issues with PSU and bridges? Why you use PCI-E x8 for CF setup in your second screen? My psu is 1600w Lepa. Bridges i use one and two and no change. Sometimes, depends of the GPU, inexplicably, my first pci-e gives low results (RIVE), then sometimes I try second and third pci-e, they gives me better punctuation. Link to comment Share on other sites More sharing options...
TerraRaptor Posted October 18, 2013 Share Posted October 18, 2013 That is most probably overheating issue in CF (pay attention to vrm temps, not to core temps). Most 4870s were reference cards and were different only with bios. Try flashing the cards you have with the same bios and give it a try once again. Link to comment Share on other sites More sharing options...
zupernico Posted October 18, 2013 Author Share Posted October 18, 2013 That is most probably overheating issue in CF (pay attention to vrm temps, not to core temps). Most 4870s were reference cards and were different only with bios. Try flashing the cards you have with the same bios and give it a try once again. Well, now I have only one, the other died. The two had the same bios with unlocked core to 990. Thanks for all TerraRaptor, I will seek another 4870 and I will try again, but look that, are very different http://www.ixbt.com/video3/images/rv770-4/powercolor-4870-scan-front.jpg http://img218.imageshack.us/img218/8306/powercolorradeonhd4870s.jpg But i will try again. Thanks Link to comment Share on other sites More sharing options...
GENiEBEN Posted October 18, 2013 Share Posted October 18, 2013 Most 4870/90 had VRM's in the high 170*C. Try a long bridge? Link to comment Share on other sites More sharing options...
zupernico Posted October 19, 2013 Author Share Posted October 19, 2013 Most 4870/90 had VRM's in the high 170*C. Try a long bridge? Yes, I put a long bridge, I will try better cooling Link to comment Share on other sites More sharing options...
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