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AMD Dual Graphics Won't enable?

Tags:
  • AMD
  • Graphics
Last response: in Graphics & Displays
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April 11, 2013 10:33:05 AM

Hi,

I'm trying to setup AMD Dual graphics on my friends media centre PC I have built. It is using a Llano A8 3870 and a Radeon HD 6670. The motherboard is a MSI A75A-G55, the bios has had Dual graphics enabled and both cards are visible in device managed. I done a fresh install of windows 7 Pro 64 bit and now a fresh install of windows 8 64 bit, both times both the APU and GPU work in windows, but there is no option to crossfire them in the catalyst program. I have followed two videos on YouTube step by step, I've tried using the motherboard out puts and the discrete card out puts, still nothing appears in catalyst. I've installed and uninstalled catalyst and the individual cards, mutiple times, I just can't figure out why it won't work, any ideas would be greatly appreciated??

Tom

More about : amd dual graphics enable

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April 11, 2013 10:49:12 AM

OK did you go into your bios and change the setting to OnBoard graphics first. Crossfire will not be available if you do not do this.
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April 12, 2013 7:50:04 AM

Yes I've definitely enabled it in the bios to onboard graphics first, the bios is weird for onboard graphics the only options are to enable dual graphics and the description is 'Onboard graphics enabled please use motherboard connections to attach display'. The APU is definitely working, I'm using the APU to write tis reply, and the discrete 6550D and 6670 are present in device manager and I run a second display for either out put?
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