I have an older T3500 that I've upgraded over time and currently have the following:
Intel Xeon W3670 @ 3.2GHz 12GB RAM Windows 10 Pro x64 Drives: Samsung SSD 850 Pro (main boot drive) 1x Samsung 2TB HD204UI drive 2x Toshiba 4TB MD04ACA400 drives 1x DVD+/- RW Nvidia Quadro 4000 video card SoundBlaster Audigy Fx soundcard
Also I am running 2 monitors
I'm having what seems to be the common overheating problem with the Quaddro 4000 where the fan runs at max speed ALL the time and randomly shuts down video signal several times a day. Given how old it is it doesn't really seem worthwhile for me to try and fix the video card by removing the GPU and putting new thermal compound on it. I don't do any 3D modeling, mostly some light-medium gaming and design work (Adobe CC). Also watch some HD video on occasion.
I've found a newer video card on sale at a decent price and want to know if this would be a good upgrade to replace the Quaddro 4000 with.
I'm mainly concerned about the PSU running it ok and it being a worthwhile upgrade. I'd rather stick with the nVidia line as well. I'm trying to keep the budget on the cheap side (under $150) since the system is so old. No need to drop a $500+ GPU in a sub $200 system that's near the end of its life, but I wouldn't mind getting a a few more years out of it on the cheap.
Have not used that exact card but have installed several 1050ti in these T3500 with no issues. The PSU has proper 6-pin PCIe connector and should be able to handle the card just fine.
You may need to remove the small square section of the HDD swing tray (two screws) to make room for the card. Which means losing a drive mount. It can be relocated to the 2.5" slot in the upper optical bay.