Adding an ATI 9250 overrides an ATI Radeon 3450
Posted on 2011-05-05
My boss recently started using a new Dell OptiPlex 380. I ordered the machine with the ATI Radeon HD 3450 (it might be spcifically for the Dell OptiPlex.) The card supports two monitors via a splitter.
This afternoon my boss indicated that he would like a third monitor. I pulled an ATI 9250/256MB PCI card out of a spare PC and put it in the new OptiPlex. When I started up the PC, the only display available was the ATI9250 and there was no option to expand my desktop to the other displays.
According to the device manager, both of the displays were working properly. I shut down, removed the ATI 9250, powered on the PC, and the ATI 3450 displays started to work again.
Is there any way to make these cards work together?