Windows 10: Windows reserves 1 full stick of ram for no good reason

I hope anyone can help, I have seen posts relating to this before but mines slightly different.If I slot in 1x 8gb stick of ram everything is fine, however I need 16gb to run some of my more powerful apps and games. As soon as I slot in my second identical stick of 8gb ram windows reserves the full second stick...I have tried 2 different sets of Ram both 8gb different brand gaming ram and still persists so it's definitely not a stick issue. I have also tried Different slot configuration still no luck. I have tried updating bios no luck.Did a brand new windows install no luck... Did all the bio

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Windows reserves 1 full stick of ram for no good reason

I hope anyone can help, I have seen posts relating to this before but mines slightly different.

If I slot in 1x 8gb stick of ram everything is fine, however I need 16gb to run some of my more powerful apps and games.

As soon as I slot in my second identical stick of 8gb ram windows reserves the full second stick...

I have tried 2 different sets of Ram both 8gb different brand gaming ram and still persists so it's definitely not a stick issue. I have also tried Different slot configuration still no luck.

I have tried updating bios no luck.

Did a brand new windows install no luck...

Did all the bios settings configuration as per this forum suggestions... still no luck...

Tried on a different MOBO still no luck still does the same thing, I can't seem to find what's causing this.

If I slot the sticks into Hubs PC with all his equipment it's all good but the moment I slot it in with my windows install SSD it bugs out and does this.

Please assist.

I have no idea what else to do.

to add all was fine until May/June of 2022 with a windows update

 

Windows reserves 1 full stick of ram for no good reason

Hi Marica,

My name is Igor, I have 12 Microsoft MVP awards. It's a pleasure for me to help others and I'll do all my best to help you. I'm sorry you have a problems.

What is the exact model of your PC?

What happens if you eject the first stick after adding another one?

Are these RAM models listed in compatibility lisy of PC/motherboards?

Did you try to reduce RAM frequency in BIOS?

 

Windows reserves 1 full stick of ram for no good reason

Hi Igor after about 6 hours of diagnostics we managed to find the issue, it seems the to be a iffy Ram controller on the MOBO.

We did hardcore testing switching out parts etc.

We did try all the above you mentioned yes then went into hardcore hardware testing.

I will post a update once I get another board up and running to see if it resolves the issue.

I just have to get another Am4 board that's compatible with my ryzen series processor to test on, if it works then bobs your uncle. The culprit has been found if not then I'm afraid to even ask what the issue could be.