Only half of my ram is usable 16/32gb

axizz31 · September 13, 2019

PC SPECS

CPU: Ryzen 2600x no OC

MB: ASrock b450 pro4

Ram: Hyperx Fury 2400mz CL15 8gb x 4 (32gb total)

GPU: RX 5700 XT

PSU: Enough

Album of Screenshots: https://imgur.com/a/qeoLNVd

Task manager https://imgur.com/a/DRl0ZOK

Ram benchmark result at the bottom: https://www.userbenchmark.com/UserRun/20109653

Problem:

Hello, when I bought the PC I had 8gb of ram, later I add 8 of exactly the same ram and they ran perfectly fine in 16gb dual channel. Yesterday I bought 16 more gb of ram (2x8) with exatcly the same specs. At first pc would only boot with 1-3 ram sticks but would not boot with 4, I tested all the ram sticks in different sockets and they all work fine, even in dual channel. I updated bios to version 1.80 and it worked, I was able to boot with 4 sticks of ram at the same time but now I have the issue that only half of my ram is usable but all of 32gb is detected. I was thinking to update my bios to 3.1 but I saw this thread here and the guy said that the newer versions of bios are all messed up and to not update further from my 1.80. Any ideas about what should I do?

I tried

-Each ram stick in ram slot A1, all worked

-clearing CMOS

-Each ram slot with 2 ram sticks, all worked with 16gb avaliable and dual channel.

-rest bios settings

-updating bios to 1.80

-memtest86, what it detected was fine

-praying, didn't help

-beging for help, in progress...

Windows7ge · September 13, 2019

If you go into Task Manager -> Performance, and look under the Memory Tab what does it say for Hardware reserved?

axizz31 · September 13, 2019

2 minutes ago, Windows7ge said:

If you go into Task Manager and look under the Memory Tab what does it say for Memory Reserved?

https://imgur.com/a/DRl0ZOK it says 16.1gb hardware reserved

Windows7ge · September 13, 2019

Just now, axizz31 said:

https://imgur.com/a/DRl0ZOK it says 16.1gb hardware reserved

I was afraid of that. That should be in the MB range. Someone came here not long ago with the exact same problem and we could not find a solution. Can you try booting another drive and see if you still only have 16GB usable?