8GB ram only showing 3.21GB usable on windows 7 ultimate N

I dont understand why my installed 8GB of ram is only showing 3.21GB Usable. I opened my system and checked and I have 4 x 2 GB. Each time I boot it keeps showing only 4096mb. I am trying to figure this out but not having any luck with my machine reading the 8GB that is installed... now in properties it s only reading 4GB with 3.21GB Usable.

I am running Windows Ultimate 7 N, Anyone know how to resolve this? Thanks

Hi.

You must install a 64 bit version of Windows 7, Windows Vista or Windows XP.

Thanks for your reply, but it is 64 bit operating system

Are you sure about that? Type msinfo32 in the start menu then press enter and it will tell you.

Anyhow, go into the bios and set the memory remapping setting to enabled or yes. Save.

Is it the same type of memory from same manufacturer? Have you consulted you MB documentation on installing the memory especially if it is not all the same part number.

Thanks TorrentG

This is what it says when i typed in msinfo32

Installed Physical Memory RAM 8GB
Total Physical Memory 3.96 GB
Available Physical Memory 3.18 GB
Total Virtual Memory 7.92 GB
Available Virtual Memory 7.03 GB
Page File Space 3.96 GB

When I went into the Bios and changed the memory mapping to ""enabled it now shows up in properties that there is now 8GB! (instead of previously 4GB) ...but still showing only 3.96 GB Usable.

The system type is 64-bit Operating System

I just cant figure why it keeps showing 3.96 GB Usable
It also shows 4096mb in the boot up stage

Thanks again for your help.. if there is anything else please let me know!

Thanks Master SGT - when i check the Memory it was all from the same manufacturer.. each was 2GB.
I would have to check again about the part numbers though.. and they are not easy to get to!

Hey Torrent - I took out the Ram and put back in again.. did this a couple times changing the order and it seems to now read 8GB in properties and the Bios screen!!

now it shows on msinfo32

8GB installed Memory
7.96 Physical Memory
6.99 Available Physical Memory
15.9 Total Virtual memory
7.96 Page File space

This looks and sounds better already!

Thanks again

I had a similar problem with my desktop, It would not show physical ram, I rearranged all the ram into different slots and eventually was enabled with full allocation of ram, I guess there may be a faulty chip in there that was not showing in the slot it was in, but the system continues to work now with as stated, allocated ram,
I hope you also now have hassle free computing, Good luck

Originally Posted by adamdavids

Hey Torrent - I took out the Ram and put back in again.. did this a couple times changing the order and it seems to now read 8GB in properties and the Bios screen!!

now it shows on msinfo32

8GB installed Memory
7.96 Physical Memory
6.99 Available Physical Memory
15.9 Total Virtual memory
7.96 Page File space

This looks and sounds better already!

Thanks again

You're welcome. Enjoy.