Half of my RAM is hardware reserved  

Well, according to the manufacturer web page (B450 AORUS PRO WIFI (rev. 1.x) Specification | Motherboard - GIGABYTE Global

4 x DDR4 DIMM sockets supporting up to 128 GB of system memory
Dual channel memory architecture
Support for DDR4 3600(O.C.) / 3466(O.C.) / 3200(O.C.)/2933/2667/2400/2133 MHz memory modules
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in non-ECC mode)
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Profile (XMP) memory modules

You would appear good. I would check that you have the two DIMM modules in the correct slots for just populating two DIMMs.

Per the manual:


I would check you are using the correct DIMM slots for two modules.

It could be the graphic card who is behind.....the freezing.
It need some extra time instead of the default values.

Try those keys with TdrDelay and TdrDiDelay, both with values 20. It may help.

Attachment 384731

I would guess that memory is being reserved for the on-board graphics, even though you are using a graphics card. You can find info on enabling, and setting allocated memory, in section 2.7 of the manual, downloadable from here.

Open msconfig.exe
Be sure that maximum memory is checked OFF.

Attachment 384767


Launch Hardware and Devices
Type “msdt.exe -id DeviceDiagnostic” in RUN and click on the “OK”.

Possible Memory leak but we cannot say something like this without evidence.

if the only time you see this issue is when using the stocks program then the issue could be that program has a memory leak and is not managing and releasing memory that efficiently.
if you have had any crash logs or logs in general generate then you would want to send those to the developers so that they can analyze them. Also making sure the software is up to date.

Windows should average around 2.5gb total on a system that is working correctly and it only goes up from there as more tasks start running. < nvm tired and half asleep atm. 16gb reserved is a lot, in comparison i just looked at mine with only this web browser open and its at 16mb.

I also make the assumption that programs like these make use of the GPU for crunching data because streams like these require fast computations. This is probably why its so large in your case.

"With the help of their tech support I found out that 16.1Gb of my 32Gb Ram was hardware reserved."...you write.
Attachment 384770

Would be nice if you could post a pic of your Task Manager about this.

I took this screenshot before opening the ThinkorSwim program

- - - Updated - - -



- - - Updated - - -

NTN, I did the hardware diagnostic you suggested by typing msdt.exe -id DeviceDiagnostic in Run, but no issues were found.

- - - Updated - - -

I've downloaded the Gigabyte manual and will take a look at it. Thanks

If you open Resource Monitor (click in Task Manager under Memory..) does it show the same amount of RAM for hardware there too?
Probably yes...


Your UEFI/BIOS is overriding it. Inside the bios, the setting for the internal graphics card is set to use much more than necessary. Just adjust it to a lower memory buffer usage.