I know 1 gpu is enough

[Edgar R. Zakarian]

Hi Guys,

 

I know one GPU is enough for CS GO 120 fps.

 

But do you know how I can get both of my gpu's running again?

Crossfire doesn't really work on my system anymore, on DX9 games. Only DX11 games.

 

DX9 games show blackscreen (audio only) or just flickering crash.

 

[Citadelen]

Have you tried a DDU uninstall then reinstall?

[Edgar R. Zakarian]

1 minute ago, Citadelen said:

Have you tried a DDU uninstall then reinstall?

Did that a few times already..

This started happening, when i went from old drivers to Crimson drivers.

Crimson's make fallout 4 work perfectly, but kill all crossfire under DX11.

[Citadelen]

1 minute ago, Edgar R. Zakarian said:

Did that a few times already..

This started happening, when i went from old drivers to Crimson drivers.

Crimson's make fallout 4 work perfectly, but kill all crossfire under DX11.

Try again but use the old drivers to rule out hardware.

[Edgar R. Zakarian]

7 minutes ago, Citadelen said:

Try again but use the old drivers to rule out hardware.

Just did. Old drivers still work perfectly, but cause flicker as FUCK in fallout 4 Rest work perfectly. tried csgo and LoL.

[Citadelen]

1 minute ago, Edgar R. Zakarian said:

Just did. Old drivers still work perfectly, but cause flicker as FUCK in fallout 4 Rest work perfectly. tried csgo and LoL.

Hmm, I guess you could report the issue to AMD and wait for them to fix it. :\

[Edgar R. Zakarian]

1 minute ago, Citadelen said:

Hmm, I guess you could report the issue to AMD and wait for them to fix it. :\

Hm. I guess this gpu goes extict and into the trashcan then hahahaha

[Moonzy]

check your bios if the cards are running at optimal pcie lanes `-`

AMD cards so CF thru pcie so i reckon its important for them

[JWMutant]

Im going to spitball here as its been a while since I played with crossfire.

 

The easiest solution would be to disable ulps which by default is enabled.

 

ULPS is a amd power saving PITA feature that will not enable the second card until its needed. By disabling it your forcing the system to use both cards when gaming.

 

Edit : This applies despite it being a single card.

[Edgar R. Zakarian]

1 minute ago, Moonzy said:

check your bios if the cards are running at optimal pcie lanes `-`

AMD cards so CF thru pcie so i reckon its important for them

It's the top pci lane, and this 6990 is dual-gpu, so only 1 lane used.

[Moonzy]

Just now, Edgar R. Zakarian said:

It's the top pci lane, and this 6990 is dual-gpu, so only 1 lane used.

oh, didnt know its a single card `-`

then report to AMD stating that the driver after FO4 caused this issue

[Edgar R. Zakarian]

13 minutes ago, JWMutant said:

Im going to spitball here as its been a while since I played with crossfire.

 

The easiest solution would be to disable ulps which by default is enabled.

 

ULPS is a amd power saving PITA feature that will not enable the second card until its needed. By disabling it your forcing the system to use both cards when gaming.

 

Edit : This applies despite it being a single card.

I think I already tried this actually.
It's not that the other card doesn't activate I think, it's more that it just plan flickers (doesn't show any real output).

[Edgar R. Zakarian]

13 minutes ago, Moonzy said:

oh, didnt know its a single card `-`

then report to AMD stating that the driver after FO4 caused this issue

where do you even do that? I tried the forums, can't even post there, and and officially doesn't answer there.

 

I think I MIGHT'VE sent in a complaint or something like that, with no response whatsoever..

They're really bad at letting you know, even if it's just "shit happens, we won't fix it".

[Moonzy]

1 minute ago, Edgar R. Zakarian said:

where do you even do that? I tried the forums, can't even post there, and and officially doesn't answer there.

 

I think I MIGHT'VE sent in a complaint or something like that, with no response whatsoever..

They're really bad at letting you know, even if it's just "shit happens, we won't fix it".

http://www.amd.com/en-us/who-we-are/contact

[Edgar R. Zakarian]

15 minutes ago, Moonzy said:

http://www.amd.com/en-us/who-we-are/contact

I've sent in a mail to them now, through customer service, let's wait and see
I'd like an answer.