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Please help!3870 two cards in crossfire running worse than single card

July 26, 2009 5:40:45 AM

Hello, the other day i got two 3870 hd graphics cards 1 is 512mb ddr4 and th other is 1024mb ddr3 both diamond series my motherboard is a asrock 780gxe/128m which is crossfire ready but in crossfire they run at 8x + 8x and all my games dropped in quality i play conan, crysis, world at war and fallout 3 eq2 as well but with the 2 cards running i could only run conan on low crysis on med but with noticeable glitches in both if i went any higher, pulled the 3870 hd 512mb one out and now i can run everything on high no problems so if someone could help understand why it was worse with 2 cards it would be greatly appreciated.

So do i need a new motherboard with 2 pci e x16 2.0 slots will that resolve the issue???

Please help,
thanks stcboaz