Topic: 2 cards listed in device manager, only first shows up in GUIMiner (Read 1665 times)
No. One should be fine, but you'll need to pick that port to extend the desktop, or else Windows will think there's nothing there.
oh, are there any cards that need more than 1 dummy cable?
Make sure you have a monitor attached to it or a dummy plug. Then extend you desktop to it. Quit guiminer and restart it.
Does anyone have any ideas why my second card wont show up in GUIMiner?
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