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2 x HD5770, can't find both GPU's in CCC

Last response: in Graphics & Displays
January 21, 2010 2:04:37 PM

Good afternoon

I just recently installed my second HD5770 card, and when I booted the computer and checked the system component list, only one card showed. However, after a couple of seconds, the screen started flickering and then the menu appeared again, now showing both cards as HD5770 and claimed them to be installed correctly.
When I started CCC though, the only place where both cards appeared were in the "Information Center" panel, under "Graphics Hardware". Everywhere else, only the card which is connected to my screen shows. I have tried unenabling CrossFireX and rebooting and then enabling and rebooting again, but it still remains the same.
I can't find out if both cards actually work together, since one of the cards only seem to appear in the hardware lists. I'd be glad for any helpful feedback.

More about : hd5770 find gpu ccc

January 21, 2010 2:11:11 PM

If it added a CrossfireX to your drop down they are working. If you go into Overdrive, for example, you should now have 2 5770 cards in the drop down. You can only look at one at a time. The Crossfire option does not appear if you do not have more than one card.

Run a benchmark, THAT will show you.
January 21, 2010 2:14:26 PM

Thanks for the answer, but the thing is that only one card appears in the dropdown (in Overdrive as well). I can't find a single option for my second card.
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January 21, 2010 2:15:49 PM

Look under device manager, do you see 2 cards? If so they are installed. The new CCC might be a little different.

If you have a Crossfire option though, it is running both cards. Otherwise it won't even show you the Crossfire menu.
January 21, 2010 2:17:37 PM

Run something like 3DMark06 or Vantage with the Crossfire option off and with it on. you could try reseating the cards and crossfire bridges.
January 21, 2010 2:17:44 PM

All right, both cards should be installed then. Downloading a benchmark now to check it.
January 21, 2010 2:53:00 PM

Tried out 3DMark Vantage and got just above 15k on GPU-score, which is lower than I would get with 2 cards. Also, when I asked the program to check my components, only one GPU was detected and it set the "Linked Display Adapters" as false.
The first GPU test was incredibly laggy as well, white squared and lines filled the screen most of the time.