The new operating system does not work with the old one, and even separately, it started up once, what should I do?

Question

Computers

Hello everyone, I need help, I bought a PATRIOT Signature PSD48G213381 DDR4 RAM - 8GB 2133, DIMM, Ret, in addition to CRUCIAL CT8G4DFS8213 DDR4 - 8GB 2133, DIMM, Ret on an ASUS H110M-R/C/SI motherboard, Patriot operatives cannot be started separately, the monitor does not work, there are no signals, everything turns on and works, but there is no picture, together 2 bars are also the same, the bios was reset and, lo and behold, it started up once, checked in Aida 64 everything showed fine, but the picture froze abruptly and everything was a stupor, later it didn’t start together anymore , I tried it on both slots, changed places, there is no difference, I initially thought when it didn’t start that they were generally incompatible, but once it started. Tell me what to do, how to start it all the same so that it works, which can interfere