Screen posting with 16GB of ram but not 32.

Hi, I built a pc a few months ago and I was totally fine with it. Around 2 weeks later I decide to buy a new 2x16 GB pair of RAM for my pc, removing the 2x8 one because I wanted to give it to a friend of mine. Today the RAM arrived, I put them in my system (specs below) but it doesn't want to post. If I put my old RAM back works, but the new one doesn't. I have already gave a pair of RAM back because of a similar issue, so I don't think it's faulty. Please, anything will help a lot. Thanks in advance.

System: Intel i7-13700k (no overclock) Corsair iCUE H150i RGB ELITE Asus z690-a gaming wifi D4 Gigabyte RTX 3070 Gaming OC Corsair RM850x

Ram (old) 2x8 Corsair Vengeance 3600mhz CL18

Ram (new) 2x16 Corsair Vengeance 3600mhz CL18