Hey guys,
I've got crossfire issues with two WF3 290X cards.
I've got:
-4790K
-MSI Z97S Krait Sli motherboard
-16GB RAM
-Seasonic 1000W PSU
-Windows 8.1 x64
-AMD 15.11.1 Beta Crimson drivers
-Both cards running at stock clocks and PCIe 3.0 x8.0 (tested via gpu-z tool)
-ULPS disabled in afterburner.
Both cards work fine individually. There are a lot of frame drops in games like CSGO and Witcher 3 (<60) that otherwise wouldn't occur with a single card. Unigine Valley scores ~4000.
I suspect the second 290X runs at PCIe 3.0 x1.1 or similar in these situations.
Does anybody have an idea on how to test and fix this?
I've got crossfire issues with two WF3 290X cards.
I've got:
-4790K
-MSI Z97S Krait Sli motherboard
-16GB RAM
-Seasonic 1000W PSU
-Windows 8.1 x64
-AMD 15.11.1 Beta Crimson drivers
-Both cards running at stock clocks and PCIe 3.0 x8.0 (tested via gpu-z tool)
-ULPS disabled in afterburner.
Both cards work fine individually. There are a lot of frame drops in games like CSGO and Witcher 3 (<60) that otherwise wouldn't occur with a single card. Unigine Valley scores ~4000.
I suspect the second 290X runs at PCIe 3.0 x1.1 or similar in these situations.
Does anybody have an idea on how to test and fix this?