Solved

XP not recognizing all of installed memory

Posted on 2011-03-03
10
395 Views
Last Modified: 2012-05-11
I have a Dell OptiPlex 380 with Windows XP SP3 installed.  I have a 2GB RAM module installed that is recognized as such in BIOS.  However, once Windows is booted only 512MB is usable.  I have tried replacing the module, placing 2x2GB modules in the available slots, and replacing the mobo but nothing has worked.  Windows does recognize that a 2GB stick is installed, but only 512MB is usable.  Anyone have any ideas about what may be causing this?
0
Comment
Question by:Dustin23
  • 3
  • 2
  • 2
  • +3
10 Comments
 
LVL 9

Expert Comment

by:AriMc
Comment Utility
- Where do you get this information that only 512 MB is usable?

- If you right-click on "My Computer" and check the amount of RAM, is that 512 MB?

- Could you post the contents of your (probably hidden) c:\boot.ini file?

0
 
LVL 47

Expert Comment

by:dbrunton
Comment Utility
>>  I have tried replacing the module, placing 2x2GB modules in the available slots, and replacing the mobo but nothing has worked.

What does BIOS say?


>>  However, once Windows is booted only 512MB is usable.

Where do you get this information from?  When you click on the System applet in Control Panel how much memory shows there?

Or Start --> Run and type msinfo32 and see how much Total Physical memory is there.

0
 
LVL 4

Expert Comment

by:JohnDecker
Comment Utility
Try taking one 2Gb stick out and see what it reads. Perhaps it is a mismatch between the sticks
0
 
LVL 70

Expert Comment

by:garycase
Comment Utility
Look in the BIOS and see if the OS Install mode is set.     If so, this limits the amount of memory that is enumerated to the OS.    If that's the case, just disable this and you should see all of your memory.

If that's not the case, post the details asked for in the previous comments.
0
 

Author Comment

by:Dustin23
Comment Utility
General tab under System Properties tells me I have 512MB of RAM.  System Information (msinfo32) says total physical memory is 2GB.  I can also see this information using Belarc Advisor; it acknowledges a 2GB stick in mem. slot 1, but only 512MB usable.  BIOS simply tells me the total physical memory installed, 2GB.  Here is the requested information from the boot.ini file:

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(2)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect
0
How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

 
LVL 9

Expert Comment

by:AriMc
Comment Utility
Is your XP by any chance "starter edition"? That one will allow only 512 MB.

0
 
LVL 47

Accepted Solution

by:
dbrunton earned 500 total points
Comment Utility
Note garycase's comment about OS Install mode.

See http://www.techsupportforum.com/forums/f10/os-alert-os-install-mode-enabled-how-can-i-change-this-mode-415445.html

A variety of solutions offered there.
0
 
LVL 32

Expert Comment

by:PowerEdgeTech
Comment Utility
It's worth checking the OS Install Mode, but that usuallly restricts it to 256MB on a Dell.

Do you have any special hardware installed - video cards, etc.?
0
 

Author Comment

by:Dustin23
Comment Utility
@ PowerEdgeTech

Nothing special installed.  Just the standard 380s we've been purchasing for a while.  I will check the BIOS...
0
 

Author Closing Comment

by:Dustin23
Comment Utility
arby636's solution on the techsupportforum thread worked like a charm.  In msconfig, the MAXRAM field was indeed set to 512MB.  I have no idea how this happened, but it's fixed now.  Thanks for all the help!
0

Featured Post

What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

It is only natural that we all want our PCs to be in good working order, improved system performance, so that is exactly how programs are advertised to entice. They say things like:            •      PC crashes? Get registry cleaner to repair it!    …
Today, still in the boom of Apple, PC's and products, nearly 50% of the computer users use Windows as graphical operating systems. If you are among those users who love windows, but are grappling to keep the system's hard drive optimized, then you s…
The viewer will learn how to successfully create a multiboot device using the SARDU utility on Windows 7. Start the SARDU utility: Change the image directory to wherever you store your ISOs, this will prevent you from having 2 copies of an ISO wit…
The viewer will learn how to successfully download and install the SARDU utility on Windows 7, without downloading adware.

772 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

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now