Yes, it isIs your system running at default (non-overclocked) speeds?
The first two modules should be in slots B1 and A2. Which slots are working correctly?I have a GIGABYTE B365M D3H and 4 módules KINGSTON HX426C16FB/16. With all 4 modules installed, motherbard don't start. With only 2 modules installed, motherboard start correctly. Thanks for help!