?
Solved

Server only showing 3.5gb of RAM when it has eight installed

Posted on 2011-02-24
9
Medium Priority
?
659 Views
Last Modified: 2012-06-27
We have a server that has 8GB of RAM installed, but when looking in task managers performance tab it is only showing 3.5GB. I have checked the server properties and it shows that there is 7GB installed. Why does task manager not see theb full 7GB of RAM?

The servers OS is Windows 2008 server 32 bit SP2. The server is also running MS SQL Server 2008.

Any help in resolving this issue would be greatly appreciated
0
Comment
Question by:MartynLawson
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
9 Comments
 
LVL 52

Expert Comment

by:Carl Tawn
ID: 34968952
It's due to the limitation of 32-bit systems. A 32-bit system can only access 4Gb of RAM, because that is the upper limit of the number of address spaces that can be referenced.
0
 
LVL 39

Expert Comment

by:Krzysztof Pytko
ID: 34969037
Use 64 bit OS or Enterprise Edition to be able to use more than 4 GB of RAM

Regards,
Krzysztof
0
 
LVL 10

Expert Comment

by:aboo_s
ID: 34969077
Well there are work arounds for such an issue like this one:

http://en.kioskea.net/forum/affich-23993-more-then-3gb-ram-on-a-32bit-os

But still in task manager you will see 4GB top although you will using more actually!

For really handling more than 4GB 64bit systems are a must!
0
Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

 
LVL 21

Expert Comment

by:Alpesh Patel
ID: 34970009
Please make sure both have same frequency. If Mother board not support one of them then I does not recognize other one.
0
 
LVL 59

Accepted Solution

by:
Darius Ghassem earned 2000 total points
ID: 34970099
Well you can have more the 4Gb in a 32-bit system if you run Enterprise Edition

http://www.sgvulcan.com/memory-limits-of-various-windows-versions/

You can put the PAE switch in but you will still see only 4GB of memory.

http://support.microsoft.com/kb/929580
0
 
LVL 1

Author Comment

by:MartynLawson
ID: 34997956
I've upgraded the server to Enterprise Edition and it was only showing 3.5GB, so I've run the BCDEdit /set PAE forceenable command and now it is showing just short of 7GB which is about correct, but when the server is running SQL it is still running slow and the resources do not appear to rise above 4GB.

Does anyone know why the server would not be using the additional resources even though they server recognises them?
0
 
LVL 10

Expert Comment

by:aboo_s
ID: 35000324
Check out  the swap file and make sure it is set to 11 GB !
0
 
LVL 1

Author Comment

by:MartynLawson
ID: 35004962
Thw sway file is currently configured to be spaced over two drives. The total file size is just short of 13GB
0
 
LVL 1

Author Closing Comment

by:MartynLawson
ID: 35008069
PAE switched worked and now all installed RAM is showing in task manager
0

Featured Post

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

New style of hardware planning for Microsoft Exchange server.
If you're a modern-day technology professional, you may be wondering if certifications are really necessary. They are. Here's why.
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question