You can upgrade psu to 360w, 460w, or 500w Dell proprietary psu w white 6 pin and two 4 pin to get 1-2 gpu PCIe connectors. With stock 260w psu, you can support gt 1030.  Basic psu calculator Recommended PSU Wattage: 262 W for i7-10700, 4x8 ddr4, gt1030, NVMe ssd+hdd, dvd T600 has 10w higher TDP than gt1030.  If you do not use dvd or hdd, 260w psu is fine too.
Hi,I have had a Dell Inspiron 3881 for 10 months now. I recently found out it has a proprietary motherboard, power supply and case. The PSU is a L260EBM which is 260W and bronze rated. It doesn't have any connectors for a graphics card so are there any GPUs that could run on this? I was thinking about a T600 as it's TDP is 40W and is low profile (I think)? If not that then could a GT 1030 run? Thanks.
Inspiron 3881, GPU upgrade?