Crossfire help please

[mattyc123]

Hi all,

I am having a bit of trouble with my crossfire setup. it did work perfectly and i need to get it back working so i can heat my house throughout the winter

first system specs,
cpu 6700k
mobo gigabyte G1 gaming
psu evga 1200 p2
gpu 2x r9 290x
os win10
hdd samsung ssd's in raid 0

ok the first problem I am having
on start up I dont get any of the bios loading information that i normally got, just blank screen until in windows.
what I have tried
disconnecting second card, all displays correctly
plugging monitor into second card, displays correctly when primary display in bios set to slot 2, change connection back to first card and setting in bios and back to no display. leaving the monitor connected to the second cards and changing the settings in the bios back to slot 1 I can still see the bios.
different connections (I use dp) no difference

the second is that crossfire dosent work. it did work until recently i used the AMD driver cleaner and I think that cocked it up.
i have clean installed the latest drivers which hasn't made any difference
i have checked the settings in radeon settings and it is set to crossfire. in assassins creed it only shows one gpu and not 2 like it used to. msi afterburner sees it as does device manager and radeon settings.
swapping the monitor to the second card i only have that card in use.

I am thinking about clearing the cemos but it might kill my raid array (it has done before)
I dont know a cleaner way of uninstalling the graphics drivers. maybe a clean install of windows, but as you know that is a pain in the behind
Has anyone else had any problems with the and driver cleaner?
Can removing drivers affect the bios?

Please if anyone has any ideas let me know

Thanks

Matt

 

[mattyc123]

Doesn't anyone have any ideas?

 

[mattyc123]

Hi, thanks for your replies. I have got crossfire working now. For anyone who is interested here is how I did it.

I removed the second card power and from the motherboard, a major challenge with a custom water cooled system. Booted and uninstalled the graphics driver and afterburner. Restarted the computer and ran the AMD uninstall tool. Restarted in safe mode and used ddu to clean the remaining bits of driver. Installed the graphics driver, restarted and tested in a game. Shut down and installed the second card. Booted up and turned on crossfire ( this option wasn't there before I did this) in radon settings. Restarted and tested in game, which was now showing two cards. Reinstalled afterburner added a small oc and synchronised the cards, turned off ulps in afterburner and I am back at the expected frame rates.

Thanks again for your help, I decided to have another go at clean installing the drivers with a card removed (I had tried this before) but ran the AMD tool and got everything back up and running before adding the second card.

I still have the first problem that I can't see the bios when my monitor is plugged into the card in slot 1 even though I have this set as the display in the bios. Any ideas on this? I am less bothered about this, it isn't as much of a problem to move the monitor from the slot 1 card to the slot 2 card.

Thanks again

Matt

 

[mattyc123]

Yes the monitor is on standby. If I connect it to the card in slot 2 it works as expected in the BIOS.

 

[mattyc123]

I will give that a go, thanks