I bought my HX90, barebone version, a year ago. It worked good with 2x16Gb Kllisre RAMs from Aliexpress. From the very beginning upper SODIMM slot made dents on the contacts of inserted sodimm, but this didn't affect SRAM functionality. Visually slot is clean. 5 days ago SODIMM in upper slot stopped working. I checked this by inserting damaged sodimm in lower slot and vice versa with good sodimm. So, I decided to buy a new pair of SODIMMs, Kingston 2x16Gb KF432S20IBK2/32. Upon insertion to upper slot, sodimm contacts got some dents, as it was with pervious SDRAMs, but 32G was successfully recognized by BIOS. New SRAMs worked for one day (!), and then again upper SODIMM became faulty. I checked this thoroughly by inserting burnt sodimm into another computer. So, my HX90 motherboard burned out two SODIMMs in upper slot. I want my HX90 to be repaired or replaced, only 1 year passed, warranty is 2 years. Wrote to hi@minisforum.com , but received no answer in 2 days...