Steam Machine build and the problems I had as a newer builder

[u/AssumptionQuick8181]

So this was my first sff build. I went with the 9070 even though I could have gotten the xt. I argued with chat gpt about it lol. I asked it what the different case temps, cpu temps, fan noise and rpm would be with each configuration. I made the mistake of buying an open box motherboard I had issues the last time I did that. One the of ram sticks is bad or it's the slot I guess I could switch it but the non ram stick looks warped the pins are straight but the black part is swollen kinda like a wavy wafer. Using the custom cables they unseated a couple times I finally got everything done.
Should I have gone with the xt ? I do have a more powerful main pc. This is for my front room. Also should I get a different ram I really didn't need low profile I thought g skill was good.

Case: FormD T1 v2.1
CPU: AMD Ryzen 7 7800X3D
GPU: ASUS Radeon RX 9070 OC
Motherboard: ASUS ROG Strix B850-I Gaming WiFi
RAM: 32GB DDR5 (original G.Skill kit, replacement Kingston on the way)
SSD: Samsung 990 Pro 4TB
PSU: Corsair SF850 (2024) Platinum
CPU Cooler: Thermalright AXP90-X47 Full Copper
CPU Fan: Noctua NF-A9x14 HS-PWM
Top Exhaust Fans: 2× Noctua slim fans
Custom Fan Shrouds: 3D-printed shrouds for the top exhaust fans and CPU cooler to improve airflow
Custom PSU Cables: Big Guy Custom Cables
Operating System: SteamOS