asked on 1/14/2018

Windows 2008 Standard R2 x64 Not using all memory.

I have a Windows Server 2008 R2 x64 that has 48GB of RAM installed but in the computer properties is displays the following.

"memory installed (RAM): 48.0 GB (32GB usable)"

Why would it not use all 48GB of the installed RAM.

Windows OS

Last Comment

DBBurnsIN

1/14/2018

John

1/14/2018

Check the documentation for your server. 32GB may be the maximum allowable memory. If this is the case, that would explain the message.

Andrew Leniart

1/14/2018

Just further to John's suggestion, if the server is a no name brand, look inside the case and note the name and model number of the mainboard. It will be written on it somewhere.

Then go to the manufacturer's website and check the mainboard model specifications. That will tell you the maximum amount of usable RAM the board supports.

ASKER CERTIFIED SOLUTION

arnold

1/14/2018

THIS SOLUTION IS ONLY AVAILABLE TO MEMBERS.

View this solution by signing up for a free trial.

Members can start a 7-Day free trial and enjoy unlimited access to the platform.

See Pricing Options

Start Free Trial

SOLUTION

arnold

1/14/2018

THIS SOLUTION IS ONLY AVAILABLE TO MEMBERS.

View this solution by signing up for a free trial.

Members can start a 7-Day free trial and enjoy unlimited access to the platform.

See Pricing Options

Start Free Trial

Andrew Leniart

1/14/2018

You're spot on arnold. Well done. Here's the link you're looking for...

https://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx#physical_memory_limits_windows_server_2008_r2

Hello There

1/14/2018

You need to have WS2008 Datacenter or Enterprise or upgrade to WS2012 Standard or WS2016 Standard. Consider upgrading because era of Windows 10 is here and you will need to upgrade your server in close future anyway to be able to manage all Win10 workstatons via GPO etc.

DBBurnsIN

1/14/2018

ASKER

Thanks Arnold. This is a big help toward figuring out the performance issues on this server.