[SOLVED] How to fix 2 Ram slots are not working

[Eclipse2]

Specs:
CPU: Ryzen 3 3100
Motherboard: MSI b450m Mortar Max
Ram: Aitc 8gb 3000mhz
SSD/HDD: WD 256gb blue nvme
GPU: Palit gtx 1050ti
PSU: Silverstone 700w

Ram 1 and 2 are working
3 and 4 are not

Tried everything can you guys help me solve this issue?

 

[sizzling]

Have you checked for any bent cpu pins?

 

[thx1138v2]

Your memory connectors are numbered like that so it's hard to tell what you are talking about. They are A1, A2, B1, and B2. Look on page 28 of the manual to determine how to install the DRAM modules: https://download.msi.com/archive/mnu_exe/mb/E7B89v1.1.pdf