No "Onboard" option in BIOS to use onboard graphics card, after installing a dedicated video card
I have an ECS motherboard with onboard ATI Radeon HD 4250 graphics with DVI and VGA ports. I was using the DVI earlier. I installed a NVDIA GeForce 210 PCIe x16 card and started using a dual monitor setup with its DVI and VGA. Now I would like to have a 3 monitor setup. I returned to BIOS to make onboard graphics a default option, but I do not see any way of telling the BIOS to use the onboard graphics. Only two options in "Init Display First" are PCI and PCIe. I confirmed that under "Integrated Peripherals" menu in BIOS, Onboard graphics is set to "UMA" (and not 'disabled' - these are only two options there). So, basically I am unable to use both the onboard graphics and PCIe card together to make a 3 monitor extended desktop. What am I doing wrong? Is this a MB limitation (to use either or)? What are my options?