Only half of my ram is usable

[brandongaming33]

I am running windows 10 64 bit, and have tested both the sticks individually, they both displayed as 4gb, but when i run with both it only shows up as 4gb with 4gb being hardware reserved, for some reason the other day it ran with 7gb usable but I shutdown the machine and went into my bios to oc my cpu some more, and it showed up as 4gb again. It displays as 8gb in my bios                                   

[neloy]

Do you have both of them running in parallel on your motherboard? And they are both the same speed?

[Theguywhobea]

Didn't you post this already?

[Xaring]

Boot into your BIOS and check that all the memory is detected.
If not, there might be a number of issues:
Incompatible dimms,

Badly seated (not installed propperly) dimms,
broken dimms,

broken slots,

wrong configuration (such as wrong timings/speed)...

To boot into bios: https://www.laptopmag.com/articles/access-bios-windows-10

[Xaring]

Just now, Theguywhobea said:

Didn't you post this already?

Its his first post, unless its a new account?

[Theguywhobea]

23 minutes ago, Xaring said:

Its his first post, unless its a new account?

Oh woops, there was another guy with a similar setup complaining of the same issue earlier this morning

[Kilrah]

Wrong slot used? When you install 2 they can't be just anywhere, need to be in matching slots. See motherboard manual.

[AntiTrust]

54 minutes ago, brandongaming33 said:

I shutdown the machine and went into my bios to oc my cpu some more, and it showed up as 4gb again.

If you undo your OC does it fix the problem?

[WkdPaul]

Turn on memory remapping in the BIOS.

 

What are your specs, to help you find the actual name of the BIOS setting.

[brandongaming33]

38 minutes ago, wkdpaul said:

Turn on memory remapping in the BIOS.

 

What are your specs, to help you find the actual name of the BIOS setting.

running a gigabyte 990fxaud3 mobo

[brandongaming33]

1 hour ago, neloy said:

Do you have both of them running in parallel on your motherboard? And they are both the same speed?

they are installed properly and are the same speed and type

[brandongaming33]

51 minutes ago, AntiTrust said:

If you undo your OC does it fix the problem?

I already tried undoing my oc on the ram and it did nothing, would my cpu oc do something?

[brandongaming33]

56 minutes ago, Kilrah said:

Wrong slot used? When you install 2 they can't be just anywhere, need to be in matching slots. See motherboard manual.

they are installed properly

[brandongaming33]

1 hour ago, Xaring said:

Boot into your BIOS and check that all the memory is detected.
If not, there might be a number of issues:
Incompatible dimms,

Badly seated (not installed propperly) dimms,
broken dimms,

broken slots,

wrong configuration (such as wrong timings/speed)...

To boot into bios: https://www.laptopmag.com/articles/access-bios-windows-10

In my bios it says 8128mb installed, so its all detected in there

[brandongaming33]

both are g-skill sniper ddr3 1600mhz, came in the same box and everything

[brandongaming33]

also i have tried re-installing the memory to make sure it was seated properly, and it didn't fix

[Komenjoka]

problem with OS, i think...

[brandongaming33]

kk so idk how but by messing around in my bios I now have 6.8gb usable

[Xaring]

https://appuals.com/windows-10-wont-use-full-ram/

 

Maybe this helps?