Crossfire is slower than single???

I have 10.6 drivers for my dual 4870's i just noticed after playing badcompany 2 that my crossfire was disabled. I enabled it and started to play badcompany 2 and i have horrible performance. its like the opposite. I even have Throttlestop running. Whats going on?

 

I had the same problem, could never get 10.6 to work right. I was getting less than 10 fps in BC2.

If like me, you want the driver for the BC2 map load fix, you can modify the 10.5a hotfix and install it to fix the issue.

 

thanks for the quick reply dude, how do i unistall my current driver?

 

It looks like a lot of people that have ATi cards noticed worse performance in Bad Company 2 with the 10.6 drivers. I'd suggest uninstalling them and going back to 10.5. Go to your control panel and uninstall it from there.

 

Download the 10.5 mobility drivers from the ATI website. Run the 10.5 installer and then click uninstall. Let it reboot and then run the 10.5 setup again to install them.

If you decide you want to install the 10.5a hotfix so that BC2 maps wont take forever to load, do the following:

After installing 10.5, download the 10.5a hotfix. Run the installer for the hotfix, but cancel it after it extracts the driver files.

Once the files are extracted, go to the

\AMD\ATI_Catalyst_10.5_Hotfix_Win7_Vista\Packages\Drivers\Display\W76A_INF folder

open up the file called "CH100721.inf" in notepad

under where it says [Manufacturer] you need to put this line in there with the descriptions of the other cards:

"ATI Mobility Radeon HD 4870" = ati2mtag_RV7X,

now minimize notpad and go to Device Manager:
Right-click a GPU and go to properties.
click the Details tab
select "Hardware ids" from the drop-down
right-click and copy the 2nd line. should look similar to this: PCI\VEN_1002&DEV_945A&SUBSYS_02A11028

now maximize Notepad and paste it after the line you added, should look like this:

"ATI Mobility Radeon HD 4870" = ati2mtag_RV7X, PCI\VEN_1002&DEV_945A&SUBSYS_02A11028

save/close Notepad

Once you've done that, in the Device Manager:
right-click a GPU
click Update Driver Software,
then Browse My Computer,
then Let Me Pick,
then Have Disk.

Once you've done this, navigate to the folder that has CH100721.inf and select it. 4870 mobility should come up as an option.

This worked for me. You might have to do it to both GPU's from the Device Manager, i honestly forget if you have to. check the driver version of both GPU's just to be sure (in Device Manager, right click a GPU, click Properties and then click the Driver tab)

edit: I cannot seem to find the 10.5 mobility drivers on ATI's website, it skips from 10.4 to 10.6 for some reason. I uploaded them to rapidshare.

http://rapidshare.com/files/403938564/10-5_mobility_vista_win7_64_dd_ccc.exe.html

 

doesn't the driver rollback function work? Its what I do when a new driver install goes awry...

 

Every time I see a thread like this I get my hope up that I'll finally get BC2 working right. But, nope. My laptop refuses to let me install anything other then the 10.3 drivers from dell. I am about ready to just smash this thing I'm so ticked about these driver problems.

I have 4870's and my bios is A04. I run the uninstaller, then CCleaner, then restart. Go to install the 10.5 drivers it gets through the HDMI audio, then Lord of the Rings, then just skips to the end saying it finished installing, but with warnings. Click "view log" and see nothing. Maybe I'm missing something:



Have tried the manual install method as well, windows says no because the driver is already up to date.


EDIT:

Updated bios to A05 just for the hell of it. 10.5 still wouldn't install. This has probably been posted before, but the weird thing about installing anything other then 10.3. Neither display drivers or the CCC show up as an option when I do a custom install. Here's what the 10.5 looks like:



And here's 10.3:

 

That bites, that stupid BC2 bug drove me crazy for months, and I finally did enough digging to figure out how to get 10.5a installed.

I don't really know what to tell you to try to get the 10.5's installed. If you have an R2, it might be R2 related, I don't really know if I can help you there. I have an R1, and I'm still running A03, not that I think it has anything to do with it. Also, as far as cleaning the driver, I use Driver Sweeper and instead of doing it right after I uninstall, I reboot into safe mode first to clean the drivers.


These are trivial differences but you've surely seen how touchy the ATI drivers are. Maybe you'll get lucky.

Also, im sure you are, but make sure you're trying to install the 10.5 mobility driver instead of the desktop one.

One other thing, if you want to give the manual install method another try, after you uninstall 10.3, go to the Device Manager and uninstall the GPU's again from there, it should give you the option to delete the current driver. This might roll the driver back far enough that it will let you install manually.

Stupid ATI drivers are a complete headache sometimes. I feel your pain.

 

Hey, that worked! Went in to safe mode and used driver sweep. Still had to do the manual install in device manager, and then install the CCC from 10.3. But, in the end I'm now on 10.5. Next step is to try and install the hotfix and then I can actually enjoy BC2 on here for the first time.

 

dont forget to install the profile update afterwards

Drivers & Support | GAME.AMD.COM

It says 10.6 but it works with 10.5 and it has a crossfire profile for BC2

 

Thanks, I actually meant to ask if it was okay to use 10.6 profiles and forgot.

I'm having problems with the hotfix though. I get an error saying "the driver selected for this device does not support this version of Windows". I downloaded the Windows 7 version for sure so I don't have a clue what that means.

 

How can you get 10.5 drivers from amd's website? all they list is 10.6 drivers...

 

For some reason their site jumps from 10.4 to 10.6.

I found them here

http://downloads.guru3d.com/ATI-Catalyst-10.5-WHQL-Windows-7-|-Vista-64-bit-download-2551.html

 

out of curiosity, do you know if the drivers at the link you have provided have been modded by guru3d at all?

by the way, thank you for that link.

 

I was having that issue after following the (poor) instructions that I found on the ATI website.

I need you to double check something.

in the Device Manager, open the properties for a GPU, then click on the "details" tab. select "Hardware IDs" from the drop down box.

The 2nd line on the list should say "PCI\VEN_1002&DEV_945A&SUBSYS_02A11028"

If yours has anything different after "SUBSYS" from the one above, you need to right-click/copy it, and replace it in the line:

"ATI Mobility Radeon HD 4870" = ati2mtag_RV7X, PCI\VEN_1002&DEV_945A&SUBSYS_02A11028 in the CH100721.INF file.

Hopefully this is the problem. Windows will recognize the Device ID (the 945A) as the mobility card, but if the subsys number is different, it will give you the error about it being for the wrong version of windows.

 

I'm sorry, I just realize that I linked the desktop drivers.

let me see if I can find the mobility version, for whatever reason it skips from 10.4 to 10.6 on ATI's website.

 

I couldn't find them, but I uploaded them to rapidshare. Here you go:

http://rapidshare.com/files/403938564/10-5_mobility_vista_win7_64_dd_ccc.exe.html

 

That worked, and now BC2 is playable again. Thanks.