GT1030 support of dual monitor via DVI and HDMI should work.  user report: "I run a GT1030 Low Profile 2GB GDDR5 in a Dell Optiplex 980 SFF.   I was able to set up dual monitors in Windows 10 64-bit with no problems. The card has 1 DVI port and 1 HDMI port. My monitors both have DVI single-link cables. Monitor 1: Acer G236HL 1980x1080 connected via DVI single link to the DVI port on the card Monitor 2: Dell 1905FP 1280x1024 connected via DVI single link to an HDMI/DVI Converter and then to the card. This is the HDMI/DVI converter cable I bought for $7.19 [URL]" if you have another pc w DVI output, test your DVI-VGA adapter and cable using that pc to verify all interface component works.  then if you still do not have DVI signal from your gt1030 using same interface, consider it partially defective and return it for a replacement.
Hi and thanks in advance for your assistance I've been attempting to upgrade the graphics on my Optiplex 9020 since receiving it about a month ago and thought I was on the right track but have hit a bit of a wall this evening and am hoping this is a known issue and one upon which  someone here might steer me right. I intended to order the Nvidia GT 1030 low profile card but initially made a mistake and ordered the 730 instead. Before noticing my mistake, I installed it and was able to send HDMI out to my Samsung TV and VGA out to Benq monitor without any troubles. The 730 did not have it's own cooling however so the 9020's CPU fan continued to kick in sounding like a small vacuum cleaner. Realizing my mistake, I arranged a return and ordered the 1030 correctly. When the 1030 arrived today, I was very excited and made the mistake of sending the 730 back right away (had I held onto it, I could be using it right now) Unlike the 730, the 1030 did not have a VGA out but had DVI instead. The Benq monitor has both VGA and HDMI inputs so I was not concerned. Unfortunately, I'm unable to get any kind of video signal whatsoever out of the DVI output on the 1030. Whether I go from DVI to and VGA adapter or an HDMI adapter, and connect the Benq or the Samsung, the 1030 refuses to recognize any displays aside from the one connected to the HDMI out. I can view on my TV OR on my Monitor but not both. Wondering if this is a compatibility issue or just a problem with the card or my connections. I've removed and re-seated the card, checked for firmware update for card, updated to latest drivers and restarted multiple times with no luck. I did read one post somewhere that alluded to  the Pascal Architecture of the 1030 being incompatible with certain motherboards and another that said certain power supplies can cause issues but I figure since the HDMI out on the card is working fine, it only stands to reason that the 2nd output 'should' work just as well. Sadly, I haven't been able to solve this on my own. Happy to provide any missing information but hoping someone can either help me resolve this or, if it's a compatibility issue, direct me to the best card I can pick up that works with this system AND can run dual displays.   Thanks again
Struggling with Nvidia GT 1030 - Del Optiplex 9020 SFF