Crossfire fail r7250

viperneto · May 7, 2014

Windows 7 ultimate 64x
Cpu 4670 Haswell 3.40Ghz
PSU 530W 87% efficiency
4x2 GB Ram
2xHD one 500GB second 1TB
two GPU R7 250
motherboard MSI B85M-G43
.........................................
corssfire ain't working i don't why i have tried re installing CCC but no hope
my windows is detecting my second gpu as i go to device manger it's showing my other r7 250 but as it is not configured and there's no option for crossfire in CCC any ideas

Eduello · May 7, 2014

Have you connected the CF bridge?

viperneto · May 7, 2014

there's no CF bridge on both cards

Eduello · May 7, 2014

You absolutely need a CF bridge to run CF (the R9 290(x) doesn't, but that's a whole another story).

They are pretty cheap: http://www.amazon.com/HIS-CrossFire-Bridge-Interconnect-Cable/dp/B000PD81LW (if you want a different color or something, search 'CrossFire Bridge' on amazon).

viperneto · May 7, 2014

CROSSFIRE

PCIe 3.0 8GT/s bit rate effectively delivers 985 MB/s per lane, double the PCIe 2.0 bandwidth. The new R7 250 does not use a dedicated bridge connector as all traffic is handled by the PCIe bus.
Increase your gaming performance up to 2x with AMD CrossFire technology, 2.75x for TriFire configurations, or 3.75x with QuadFire configs.
here's on ati website...

Eduello · May 7, 2014

Link?

viperneto · May 7, 2014

but don't both need a connector on the card it self to connect the CF bridge? cos there's no way to put CF bridge as they don't have a place for it.

viperneto · May 7, 2014

here's both explain about r7 250.
http://www.amd.com/en-us/products/graphics/desktop/r7
http://www.club-3d.com/index.php/products/reader.en/product/radeon-r7-250-eyefinity-4.1604.html?page=3

COLGeek · May 7, 2014

The R7 250 uses CFX via the PCIe slots. No bridge required.

viperneto · May 7, 2014

then COLGeek why i can't use crossfire?

COLGeek · May 7, 2014

Did you re-install/update the video drivers (Catalyst) after installing the second R7 250? Or did you install them both at the same time?

viperneto · May 7, 2014

i had one of them since i bought my computer and today i went to buy the other one when i got home i have uninstalled CCC and updated it to 14.4 then i inserted the other one in the second pcie everything went oky until my windows just loaded the strange thing that's my second gpu is showing in device manager and it's not showing in CCC as like it doesn't recognize it.

COLGeek · May 7, 2014

What does Catalyst show regarding your hardware information?

viperneto · May 7, 2014

it's showing only one gpu http://postimg.org/image/okbuucfez/

viperneto · May 7, 2014

here's a better image
http://postimg.org/image/nlr6b8ae1/

COLGeek · May 7, 2014

You have to click on the Linked Adapter link under that table to see the second GPU

viperneto · May 7, 2014

COLGeek :

http://postimg.org/image/nlr6b8ae1/

COLGeek · May 7, 2014

Your second picture is not coming up on the link. The first one does.

viperneto · May 7, 2014

COLGeek :

http://tinypic.com/r/28wikad/8 heres i have uploaded it on another website

COLGeek · May 7, 2014

That is odd, it didn't populate all of the data. If you swap the 2 GPUs around in the slots, does anything change?

viperneto · May 7, 2014

another image for device manager as it's showing the second one but as not recognize
http://tinypic.com/view.php?pic=2125vn6&s=8#.U2p-hvmSzMs

viperneto · May 7, 2014

COLGeek :

i have done that nothing happen.

COLGeek · May 7, 2014

So, when you swap them around nothing works -OR- the behavior is the same?

viperneto · May 8, 2014

i have fixed my problem by re installing my windows i never imagined the problem was my windows setup, after re installing my windows and installing CCC on my first graphic card then shutting down my pc and inserting the second one the crossfireX suddenly appeared in CCC everything work great thanks for support guys anyway really thank you.

COLGeek · May 8, 2014

Great news!!!

Crossfire fail r7250

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