• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

Solutions for 200 series Issues

B

Bluesun311

2[H]4U
Joined
Sep 21, 2013
Messages
2,523
After a number of hours troubleshooting a weird issue with FrankenFireCross with a 280x and 7950 I stumbled upon a solution that may or may not help anyone else ever. I wanted to offer it as a simple something to try if you are having issues with your new 200 series card and invite anyone with a suggestion on this topic to reply here.

My issue: CrossfireX wouldn't enable with the 280x in top PCI-E slot and 7950 in bottom. Period.
Solution: Reinstalled monitor drivers. In my case I have a brand new 32" Vizio M321i-A2 and there is no driver for it so I uninstalled the Generic PnP Monitor Driver from Device Manager and then refreshed. Hope this helps someone.
 
Last edited:
And now, after a full shutdown--Xfire is greyed out again with 280x on top... was just working before the shutdown. Points to BIOS settings maybe?
 
Bluesun311 said:
And now, after a full shutdown--Xfire is greyed out again with 280x on top... was just working before the shutdown. Points to BIOS settings maybe?
Click to expand...


4770k @ 3.9ghz with 1.5v may be the problem.
 
Bluesun311 said:
If I have to downclock my 4770k below stock to make a video card work there's something wrong with the world.

My CPU is 24hour stable at prime95 28.1 that's why it's not overclocked. So it's stable. I appreciate the suggestion but this seems like some sort of chipset issue.

Edit: I'm a moron but I've got 3 hours sleep in 2 days over this so at this point I'm just glad it's done with. The ACTUAL problem was the crossfire cable. Both cables were brand new unopened. I was using the one that came with the 280x. I didn't think to try the other one earlier because the first one I tried worked with the 280x on bottom... Not good troubleshooting... Should have never swapped slots without trying different cable.

Fucking tricky. Feel stupid about this but w/e. Now I'm so tired I don't even care much.
Click to expand...

... major fail. At least the shit works fine now. I could try and blame the manufacturer of the newer Xfire cable but I wont because ... damn I shoulda tried other cable right off the bat. Let that be a lesson to the rest of you.

I just don't understand why the bad/incompatible cable worked that ONE time with the 280x on top and EVERY time with it on the bottom. So bizarre.
 
perhaps it has something to do with the PEX initialization sequence by the bios.
 
SonDa5 said:
4770k @ 3.9ghz with 1.5v may be the problem.
Click to expand...
Yeah... After a while I focused on the numbers and realized it should say 1.15

Well so I had the setup working perfect in Windows 7 so I figured I'd wreak some havoc and try for Franken-FireCross on windows 8.1 with a 280x and a 7950.

First few tests were surprisingly meh. Crossfire was working, but not quite as well as it did in win7. Then I tried to get 120Hz over HDMI working. This caused some problems and I ended up in an endless loop of Device manager calling my cards both 7900s and causing intermittent crossfire incompatibility with certain benchmarks that had been working when I first got win 8.1 up and running. I'll give it another shot in a month or so see if the drivers have been worked out.
 
Seems like might just be an issue of needing to use Sapphire TRIXX and the option for synchronize cards in crossfire needs to be disabled...

And ULPS too.
 
Last edited:
You must log in or register to reply here.
Back
Top