Solved

XP not recognizing all of installed memory

Posted on 2011-03-03
10
398 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
ID: 35032217
- 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 48

Expert Comment

by:dbrunton
ID: 35032232
>>  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
ID: 35032332
Try taking one 2Gb stick out and see what it reads. Perhaps it is a mismatch between the sticks
0
The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

 
LVL 70

Expert Comment

by:garycase
ID: 35032357
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
ID: 35032504
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
 
LVL 9

Expert Comment

by:AriMc
ID: 35032548
Is your XP by any chance "starter edition"? That one will allow only 512 MB.

0
 
LVL 48

Accepted Solution

by:
dbrunton earned 500 total points
ID: 35032591
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
ID: 35032723
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
ID: 35037177
@ 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
ID: 35037793
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

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

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

Suggested Solutions

This article may be useful for troubleshooting your PC. Power Supply - no lights or fans running If you have no lights or fans running then either you power is bad, turned off (check switch) or the power supply needs to be replaced. That's a r…
When you start your Windows 10 PC and got an "Operating system not found" error or just saw  "Auto repair for startup" or a blinking cursor with black screen. A loop for Auto repair will start but fix nothing.  You will be panic as there are no back…
The viewer will learn how to successfully download and install the SARDU utility on Windows 7, without downloading adware.
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…

809 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