Crossfire Issues

Shelster · 1 Dec 2015 at 17:38

Have put this in Motherboards as feel it may be an issue with mine

Have just bought a new Gigabyte Z97X-SLI Intel Z97 (Socket 1150) DDR3 ATX Motherboard from here and ham having a nightmare gettign my eyefinity set up working.

The handbook says it supports Xfire, which it appears to be doing as both gfx cards are being seen by the AMD driver suite.

The problem is that when I connect up 3 displays (DP, DP and DVI as per my previous set up) I am not able to make an Eyefinity group. Am told there is not enough displays connected.

I also just got into a continual bootloop where it would get to Gigabyte splash screen then restart. Only way yo t get out of it was disconnect all three monitors and then just reconnect the DVI on my uppermost GFX card.

Is there something fundamental I am missing here?

Am going to look at updating the BIOS, but the release notes I have briefly looked at do not show there to be anything effected on the multi GPU front.

Is there a BIOS setting I have missed? What the heck is going on?

Shelster · 2 Dec 2015 at 10:41

Solved it...did not have all cables in primary GFX card...I am a numpty

Borealis · 2 Dec 2015 at 10:58

Shelster said:
Solved it...did not have all cables in primary GFX card...I am a numpty

We've all done it at some point. Like when I couldn't get anything to display only to discover that I had the monitor plugged into the onboard graphics - which I'd disabled.

Shelster · 2 Dec 2015 at 21:17

Well...all is not as sorted as I thought it was.

Can get Eyefinity working over three screens....but what I cannot do is shut down after doing that and then reboot with three screen attached.

If I do, then I get past BIOS splash screen, see a flashing cursor type thing and then the computer powers down and restarts itself.

Am unable to break into BIOS either at that time.

If I unplug 2 monitors, then it will come on fine.

Does this sound like a borked board or is there something else I can try?

Cheers

Borealis · 2 Dec 2015 at 21:24

The Z97X-SLI definitely supports Xfire. It could be a borked board, but if otherwise it's fine, it sounds like a graphics issue. Does it start up with 2 DP monitors connected?

What's your full spec?

Shelster · 2 Dec 2015 at 21:36

Have just updated BIOS to F9 version so will try booting with 2 DP monitors connected and see what happens then.

Rest of system is

4790K CPU at Stock
32 GB DDR3 at 1600 MHz
7970 and 280x GFX cards in Xfire
Asus Xonar PCIe sound card
a few SSDs and a 2 TB HDD

All three monitors are Dell U2410s which are connected as Mini DP, Mini DP and DVI.

Nothing else connected apart from mouse and keyboard

Shelster · 2 Dec 2015 at 21:40

2 DP monitors connected and all good.

Am going to try now with connecting 3rd on DVI and see what happens.

If that fails will then go to a single DP in socket 1 and DVI and the single DVI in socket 2 and DVI and see where that takes me

Shelster · 2 Dec 2015 at 21:43

Well.....as I thought might happen...plugged in the DVI display and it worked fine. Bally typical.

Have a feeling that after i have shut down tonight and come and try and boot up again tomorrow it will be the same again......

I hate computers