Windows 10: my 8gb ram uses only 3.9gb and 4.1 is in hardware reserved

hello i need help, this problem occurs when i installed a new cpu, I've tried many fixes like tinkering in msconfig, bios, windows memory diagnostics, maintenance task, even cleaning and switching places of rams. in my old cpu it uses all of 8gb of ram so the ram and their slots isn't the problem, and when i go back again to the new cpu there's a screen that tells you that "you have a new cpu installed press f1" like that and i can see my total memory of 8192mb but when i press f1 to go to bios the total memory is only 4096mb, but it still recognize that i have a 2x 4gb ddr3 1600mhz ram in both 2 dimm slots. and i noticed something in dram timings that their timings is different compare to the timings back when i use my old cpu the one that uses all 8gb so i assumed that the problem is the dram timings? or nah?

:)

 

RAM shows 4GB hardware reserved insted of 8GB

Still no reply. Having the same issue. 8gb installed windows hardware reserved 4gb so I only have 4gb that i can use. installed 16gb or ram. windows has now hardware reserved 8gb of ram. Regardless of slots used. 3 different types of memory in as many
configurations as possible. all returning the same result. What the **** is going on. this has randomly happened on a healthy working install of windows 10. Have since done a fresh install with the same thing still happening....

 

RAM shows 4GB hardware reserved insted of 8GB

sir,

i have installed windows 10 pro in my system, i have 8gb of ram installed into my motherboard,but when i check the properties it shows only 3.90 gb usable. when i check with the task manager, it says that 4 gb is hardware reserved. what is it mean. how
can i use my 8 gb of ram fully.pls help.

 

Corsair Vengeance 2x4GB Black. [4GB HARDWARE Reserved] Problem

• CPU : Athlon x4 860k 4.2 GHZ
• MOBO : A88X-G45 MSI GAMING
• GPU : R9 290 Tri-X OC 4GB
• Ram : Corsair Vengeance 2x4GB Black
• Ram Model : CMZ8GX3M2A1600C9

Yesterday i did a MemTest86x and i got 0 erors.

My CPU-Z software says i have Single Channel ram while i use Dual Channel it says i have 8GB

On my task manager it says i have 4gb usable and 4gb Reserved to hardware.

On my computer>Properties it says 8GB (3.96Usable)

My MSI A88X-G45 detects both rams on bios but it says i got only 4gb ram 1333MHz


I tried few fixes i got the chance to get the ram to 8gb usable but after a while my pc froze i restarted and boom again same 4GB (3.96 usable)

I tested the ram on 2 computers so its not any CPU Mobo related problems

When i insert 1 of the rams in my pc.My Pc doesnt boot up and when i insert the next one my pc bootup normaly

is there a way to reset ram settings? it looks like the ram settings are set to be reserved for hardware

and why does it have only 1333MHz while its 1600MHz Ram i changed it in bios no luck

Do you have any suggestions what should i do?

I use 2+4 slots for dual channel i cant use 1+3 cause my EVO hyper 212 is too big

I did DRAM Volt 1.56
NB : 1.25