8gb RAM installed, 3.95gb usable

Linkrocks250 · Nov 26, 2016

Why is my computer only saying I have 3.95gb of RAM usable? I recently upgraded from 4gb of ram to 8gb and I just noticed that it says 8gb installed but only 3.95gb usable. I checked to make sure they're seated and that they're compatible. I also upgraded from a GTX 650 ti to a GTX 745 if that makes a difference.

alexoiu · Nov 26, 2016

What motherboard and what Windows version using?

Linkrocks250 · Nov 26, 2016

alexoiu :

I'm using an MSI 970 gaming motherboard and windows 7 pro x64.

Manos Liakos · Nov 26, 2016

I think it has to do with the BIOS settings. Is your GPU using its own VRAM?

If yes, you may have a bad stick try using only the new one to determine if the stick is ok. If the stick is ok, try to test one stick in slot 1 and slot 2 to determine whether you have a bad slot or not. If all slots work, then you might have to change ram settings in system BIOS. If nothing works, I am afraid that you will have to RMA the board.
Also, note that two exact same sticks (same brand, timings,capacity,etc.) are not guaranteed to work together. I've done this twice before and worked both times. But they are not tested to work together, so that might be the problem too...

Linkrocks250 · Nov 26, 2016

Manos Liakos :

How would I check that? I'm new to the whole PC stuff.

Manos Liakos · Nov 26, 2016

Enter the System BIOS by pressing the "Delete" key on you keyboard during system startup. So, power on the PC and keep pressing delete continuously until you get into the BIOS. I would suggest that if you are fairly new as you said, don't try random stuff yourself, as this could mess up your system. Once you get into the BIOS, look for an option called "Integrated Peripherals" or something like that. If you don't see many options, try finding an optin called Advanced Mode/Settings and then try for the first one. In the integrated peripherals look for an option called Graphics Configuration or something similar related to your graphics. Check to see that the onboard graphics card is disabled. Usually the onboard graphics share System Memory and this could be it. If they are disabled and you are using your dedicated GPU proceed to the other steps I stated.

Linkrocks250 · Nov 26, 2016

Manos Liakos :

Enter the System BIOS by pressing the "Delete" key on you keyboard during system startup. So, power on the PC and keep pressing delete continuously until you get into the BIOS. I would suggest that if you are fairly new as you said, don't try random stuff yourself, as this could mess up your system. Once you get into the BIOS, look for an option called "Integrated Peripherals" or something like that. If you don't see many options, try finding an optin called Advanced Mode/Settings and then try for the first one. In the integrated peripherals look for an option called Graphics Configuration or something similar related to your graphics. Check to see that the onboard graphics card is disabled. Usually the onboard graphics share System Memory and this could be it. If they are disabled and you are using your dedicated GPU proceed to the other steps I stated.

I can't find anything under system peripherals about graphics. It says on BIOS that the memory size is 8192 MB though.

Tradesman1 · Nov 26, 2016

What models of DRAM, what CPU

Linkrocks250 · Nov 26, 2016

Tradesman1 :

Corsair 2x4gb and an AMD FX 8320. It decided to work all of the sudden though, I'm not sure what happened, but I just checked and I have 8gb RAM all available

Tradesman1 · Nov 26, 2016

Sounds good

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