iMac doesn't boot with four identical RAM plates
I have an iMac 5K 2019 where I’ve replaced the stock RAM with two plates 8GB (2666MHz) each (HyperX HX426S15IB2K2/16).
Today I bought two more identical modules and tried to install them. So now I have 4 identical modules. But my iMac didn’t start. I can only feel that warm air is coming from the iMac, but nothing more: the screen is black.
I’ve tried next configurations:
- It boots with any single module installed in any slot;
- It boots with any two modules installed in slots 1+3 or 2+4;
- But it doesn’t boot with any two modules installed in 1+2 or 3+4 slots;
- It also doesn’t boot with any thee modules installed in any thee slots
So I think, that modules are ok, and the slots are also ok. So what could be the problem?
Is dit een goede vraag?