I looked around at small form factor RTX GPU's that were relatively close to the size of the GTX 1650super that I used for the initial build. I went with the Gigabyte 2060ITX card. It's only 1/2" longer and 1/4" wider.
It dropped in with no modification or relocation to any of the case or connecting parts. Just barely though.
The 8-pin power connector and front right corner of the 2060 were in the way of the case screw. You can see the hole I cut out of the GPU cover. For the power connector, I de-pinned and shrink tubed each wire and plugged them in individually. That gave them a little flex so that I could part them and guide the case screw between the middle four wires.
Everything sits in tight, but it wasn't too much trouble.
I had a 60x10mm fan providing exhaust, but it doesn't pull much air. I had to lose two 60mm fans to make room for the 2060, so I wanted to upgrade the exhaust fan to make up for it.
To make room for the Evercool 70x10mm fan, I first cut away the metal grating. I had to dremel away as much of the vented case plastic as I could. When the upper case is placed onto the lower case the 8-pin CPU power connector hits the top of the 70mm fan.
I had to modify the 70mm fan so that it would sit low enough to be out of the way of the CPU power. Even sitting this low, the tips of the 70mm fan blades would clip against the CPU power connector.
If you were curious what the groove cut out of the top left of the fan frame was for, it's because of the capasitor sitting a half inch above the CPU power recepticle in the picture.
So I shaved down the CPU power connector as much as I could, and the fan can finally spin freely. I will get it all put back together and run some benchmarks soon.
If you look past the fan blades on the right side you can see the CPU power lines.
I added a grommet to the opening where the power cord is passed through. I also added some thread lock to the Wifi antenna lock nuts. They had come loose after all the traveling around I've done in the last few months.
Here is final product after I got it all put back together. I'm currently downloading updates and Cinebench. The only program I have readily available is the FFXV benchmark. Running that at highest settings topped GPU temps out at 80℃.
CPU temps are staying almost 10℃ cooler with the larger exhaust. After a 10 minute Cinebench run max CPU temp was 70℃.
I chose to keep the FX350G power supply after I used a wattage calculator to tally up how much wattage I would need with the RTX GPU. No issues at all even when the GPU was pulling max wattage during the Furmark run.
What I'm most pleased with is the GPU temps. With the original build (search OG XBOX build) at first the 1650 Super was thermal throttling at 92℃ during the FFXV benchmark. I added the 60mm intake fans to fix the thermal throttling, but it still ran warm. Now, with the larger exhaust fan, GPU temp max during a Furmark run was 80℃ (it went up 2 degrees after I took this picture).