XP only sees 3MB of my 4MB of RAM

Posted: 01-22-2009, 10:52 AM
I have a notebook PC running XP Media Center Edition on which I installed 4
GB of memory (2 x 2 GB modules). Various utilities show that both modules
are properly installed totaling 4 GB of memory.

However, "My Computer\System Properties" shows only 2.99GB of RAM available.

How can I make XP see and use more of my 4 GB of memory?

Can I configure my PC to free up more memory?

Thank you.

Jeff




XP only sees 3MB of my 4MB of RAM


Responses to "XP only sees 3MB of my 4MB of RAM"

John John (MVP)
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 12:33 PM
There is really nothing much that you can do to overcome this memory
addressing limitation on 32-bit Windows workstation/client operating
systems. The only way around the problem is to move to a 64-bit client
operating system.

John

Jeff@unknown.com wrote:
> I have a notebook PC running XP Media Center Edition on which I installed 4
> GB of memory (2 x 2 GB modules). Various utilities show that both modules
> are properly installed totaling 4 GB of memory.
>
> However, "My Computer\System Properties" shows only 2.99GB of RAM available.
>
> How can I make XP see and use more of my 4 GB of memory?
>
> Can I configure my PC to free up more memory?
>
> Thank you.
>
> Jeff
>
>
>
>
HeyBub
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 01:24 PM
Jeff@unknown.com wrote:
> I have a notebook PC running XP Media Center Edition on which I
> installed 4 GB of memory (2 x 2 GB modules). Various utilities show
> that both modules are properly installed totaling 4 GB of memory.
>
> However, "My Computer\System Properties" shows only 2.99GB of RAM
> available.
> How can I make XP see and use more of my 4 GB of memory?
You can't. You've hit the wall.
>
> Can I configure my PC to free up more memory?
>
You can't. You've hit the wall.


jim
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 01:39 PM
How much RAM is on your video card? The 4GB limit includes your video
RAM so if the total is over 4 you must see less. Other devices have
memory also which will also subtract from the 4GB limit such as audio
and network devices but they usually impact your total memory to a much
smaller amount. So the reality is you most likely have 4GB of memory
but it is made up form your other devices plus the RAM you installed.

Jeff@unknown.com wrote:
> I have a notebook PC running XP Media Center Edition on which I installed 4
> GB of memory (2 x 2 GB modules). Various utilities show that both modules
> are properly installed totaling 4 GB of memory.
>
> However, "My Computer\System Properties" shows only 2.99GB of RAM available.
>
> How can I make XP see and use more of my 4 GB of memory?
>
> Can I configure my PC to free up more memory?
>
> Thank you.
>
> Jeff
>
>
>
>
Tim Slattery
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 02:01 PM
<Jeff@unknown.com> wrote:
>I have a notebook PC running XP Media Center Edition on which I installed 4
>GB of memory (2 x 2 GB modules). Various utilities show that both modules
>are properly installed totaling 4 GB of memory.
>
>However, "My Computer\System Properties" shows only 2.99GB of RAM available.
See http://members.cox.net/slatteryt/RAM.html for an explanation.

--
Tim Slattery
MS MVP(Shell/User)
Slattery_T@bls.gov
http://members.cox.net/slatteryt
Bob I
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 02:02 PM
Configure the video to use up less ram, and disable in BIOS any hardware
that you don't use. It is the memory addresses being used up by other
hardware that precludes windows from using them to provide access to the
RAM.

Jeff@unknown.com wrote:
> I have a notebook PC running XP Media Center Edition on which I installed 4
> GB of memory (2 x 2 GB modules). Various utilities show that both modules
> are properly installed totaling 4 GB of memory.
>
> However, "My Computer\System Properties" shows only 2.99GB of RAM available.
>
> How can I make XP see and use more of my 4 GB of memory?
>
> Can I configure my PC to free up more memory?
>
> Thank you.
>
> Jeff
>
>
>
>
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 02:28 PM
Thank you all for the explanations.

Memory is cheap today, so it does not really matter.

But the interesting question comes up: is more ram available for "program
use" if the same PC had 3 GB installed vs 4 GB, or it makes no difference?

Jeff

jim wrote:
> How much RAM is on your video card? The 4GB limit includes your video
> RAM so if the total is over 4 you must see less. Other devices have
> memory also which will also subtract from the 4GB limit such as audio
> and network devices but they usually impact your total memory to a
> much smaller amount. So the reality is you most likely have 4GB of
> memory but it is made up form your other devices plus the RAM you
> installed.
> Jeff@unknown.com wrote:
>> I have a notebook PC running XP Media Center Edition on which I
>> installed 4 GB of memory (2 x 2 GB modules). Various utilities show
>> that both modules are properly installed totaling 4 GB of memory.
>>
>> However, "My Computer\System Properties" shows only 2.99GB of RAM
>> available. How can I make XP see and use more of my 4 GB of memory?
>>
>> Can I configure my PC to free up more memory?
>>
>> Thank you.
>>
>> Jeff

Bob I
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 02:43 PM


It depends

Memory type Limit in 32-bit Windows Limit
User-mode virtual address space for each 32-bit process 2 GB

Up to 3 GB with IMAGE_FILE_LARGE_ADDRESS_AWARE and 4GT

Taken from
http://msdn.microsoft.com/en-us/libr...#memory_limits

Jeff@unknown.com wrote:
> Thank you all for the explanations.
>
> Memory is cheap today, so it does not really matter.
>
> But the interesting question comes up: is more ram available for "program
> use" if the same PC had 3 GB installed vs 4 GB, or it makes no difference?
>
> Jeff
>
> jim wrote:
>
>>How much RAM is on your video card? The 4GB limit includes your video
>>RAM so if the total is over 4 you must see less. Other devices have
>>memory also which will also subtract from the 4GB limit such as audio
>>and network devices but they usually impact your total memory to a
>>much smaller amount. So the reality is you most likely have 4GB of
>>memory but it is made up form your other devices plus the RAM you
>>installed.
>>Jeff@unknown.com wrote:
>>
>>>I have a notebook PC running XP Media Center Edition on which I
>>>installed 4 GB of memory (2 x 2 GB modules). Various utilities show
>>>that both modules are properly installed totaling 4 GB of memory.
>>>
>>>However, "My Computer\System Properties" shows only 2.99GB of RAM
>>>available. How can I make XP see and use more of my 4 GB of memory?
>>>
>>>Can I configure my PC to free up more memory?
>>>
>>>Thank you.
>>>
>>>Jeff
>
>
>
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 03:05 PM
What would be the recommended virtual memory size I should set now?

Jeff

Jeff@unknown.com wrote:
> I have a notebook PC running XP Media Center Edition on which I
> installed 4 GB of memory (2 x 2 GB modules). Various utilities show
> that both modules are properly installed totaling 4 GB of memory.
>
> However, "My Computer\System Properties" shows only 2.99GB of RAM
> available.
> How can I make XP see and use more of my 4 GB of memory?
>
> Can I configure my PC to free up more memory?
>
> Thank you.
>
> Jeff

Bob I
Guest
Posts: n/a
 
Re: XP only sees 3MB of my 4MB of RAM
Posted: 01-22-2009, 03:08 PM
1GB would probably be plenty.

Jeff@unknown.com wrote:
> What would be the recommended virtual memory size I should set now?
>
> Jeff
>
> Jeff@unknown.com wrote:
>
>>I have a notebook PC running XP Media Center Edition on which I
>>installed 4 GB of memory (2 x 2 GB modules). Various utilities show
>>that both modules are properly installed totaling 4 GB of memory.
>>
>>However, "My Computer\System Properties" shows only 2.99GB of RAM
>>available.
>>How can I make XP see and use more of my 4 GB of memory?
>>
>>Can I configure my PC to free up more memory?
>>
>>Thank you.
>>
>>Jeff
>
>
>
 
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