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Crossfire 7870

Question asked by krait_sig on Jun 4, 2016

I have just added a second 7870 to my system and am trying enable crossfire. I have tried with various versions of the driver software to no avail. currently running 16.3.2 as that was the version the auto detect utility recommended. I have also run the amd cleanup utility before installing the drivers.

My system is as follows: -

Motherboard Asrock Z77 Extreme4

Processor Intel i5 3750K (running @ 4.0GHz on Water)

RAM 16GB 4 x Crucial Ballistix BLT4G3D1608DT2TXOBCEU (XMP1.3 1600)

1st graphics card PowerColor PCS+ HD 7870 AX7870-2GBD5-2DHPP (On Water) GPU 1100MHz Memory 1225MHz

2nd  graphics card VTX3D HD 7870 X-Edition VX7870-2GBD5-2DHX (On Air) GPU 1100MHz Memory 1225MHz

Monitors Samsung MD230X3 2 monitors on DVI and 1 on DP (Eyefinity) all in 1st Graphics card

1000W PSU

Screenshots below, no crossfire at all.


Can anyone help, as I am struggling work out why this is not working.