R
Rael
Hi People...How is the max memory who can manage Windows XP X86?
Regards,
Rael
Regards,
Rael
Install the app
How to install the app on iOS
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
D
Dustin Harper
4 GB of addressable memory, which after I/O, BIOS, Video, etc, it comes to
about 3.2 GB of usable system RAM.
about 3.2 GB of usable system RAM.
T
Tim Slattery
Rael said:Hi People...How is the max memory who can manage Windows XP X86?
You can load 4GB of RAM on a 32-bit WinXP system, but the system won't
use all 4GB. See http://members.cox.net/slatteryt/RAM.html for
details.
R
Rael
Thanks, very usefull answer
Regards,
Rael
Regards,
Rael
D
Detlev Dreyer
Rael said:Hi People...How is the max memory who can manage Windows XP X86?
Approx. 3.12 GB of RAM. See also
http://support.microsoft.com/kb/888137/en-us
C
Colin Barnhorst
XP can manage 4GB but the BIOS may make less available. It varies depending
on the BIOS from about 2.8 to 3.5GB. It is the BIO that determines this,
not Windows.
on the BIOS from about 2.8 to 3.5GB. It is the BIO that determines this,
not Windows.
D
Detlev Dreyer
Colin Barnhorst said:XP can manage 4GB but the BIOS may make less available. It varies
depending on the BIOS from about 2.8 to 3.5GB. It is the BIO that
determines this, not Windows.
Well, yes and no. This article applies to WinXP as well:
http://support.microsoft.com/kb/929605/en-us
Since the 64-bit Windows *may* take advantage of the RAM installed, this
is not a BIOS issue in general.
C
Colin Barnhorst
Windows x64 will still not show all ram if the max supported is installed.
If you have the max of 128GB you will only see 127GB. It is just that you
won't see the effect on consumer mobos that only support a max of 8GB
anyway.
In any case, Vista x86 SP1 does show the full amount of ram installed. MS
simply changed what was being reported. With XP you will still continue to
see only the memory available to user programs even with SP3.
It is more what is being reported than anything else.
If you have the max of 128GB you will only see 127GB. It is just that you
won't see the effect on consumer mobos that only support a max of 8GB
anyway.
In any case, Vista x86 SP1 does show the full amount of ram installed. MS
simply changed what was being reported. With XP you will still continue to
see only the memory available to user programs even with SP3.
It is more what is being reported than anything else.
D
Detlev Dreyer
Colin Barnhorst said:Windows x64 will still not show all ram if the max supported is installed.
If you have the max of 128GB you will only see 127GB.
According to the subject line, the OP was referring to a 32-bit Windows
and my reply was absolutely correct. Your comment (quote)
| It is the BIO that determines this, not Windows.
is simply false because 64-bit Windows may use more than that limit and
therefore, it *depends* on Windows - period.
C
Colin Barnhorst
The BIOS hides ram it is using for hardware buffering from user programs.
With XP what is reported on the System Properties page is the ram available
for user programs, not the installed ram. This is strictly a matter of what
MS decided to report on the System Propties page and has nothing to do with
what Windows actually knows about. MS could easily change what is being
reported in XP as they have in Vista x86. Even if they did it would not
make any difference to the user. It requires changes in the BIOS to change
how much is available to user programs.
The address range for hardware buffering is the high end of the operating
system's addressing range. With a 32 bit OS that means roughly the top gig
of 4GB. But this does not become apparent until all 4GB are installed.
With a 64 bit OS that top gig is not reached until 128GB is installed and
until then no "shortage" is noticed.
With XP what is reported on the System Properties page is the ram available
for user programs, not the installed ram. This is strictly a matter of what
MS decided to report on the System Propties page and has nothing to do with
what Windows actually knows about. MS could easily change what is being
reported in XP as they have in Vista x86. Even if they did it would not
make any difference to the user. It requires changes in the BIOS to change
how much is available to user programs.
The address range for hardware buffering is the high end of the operating
system's addressing range. With a 32 bit OS that means roughly the top gig
of 4GB. But this does not become apparent until all 4GB are installed.
With a 64 bit OS that top gig is not reached until 128GB is installed and
until then no "shortage" is noticed.
D
Detlev Dreyer
Colin Barnhorst said:The BIOS hides ram it is using for hardware buffering from user programs.
Not relevant since this is always the case, no matter how much RAM
physically installed.
With XP what is reported on the System Properties page is the ram
available for user programs, not the installed ram.
More or less correct. If there is a RAMdisk installed, Win9x reported
the remaining RAM only in contrast to WinXP.
This is strictly a matter of what MS decided to report on the System
Propties page and has nothing to do with what Windows actually knows
about.
Reports usually base on facts Windows knows about.
MS could easily change what is being reported in XP as they have in
Vista x86.
Nonsense. Excerpt from the posted KB929605:
| For Windows Vista to use all 4 GB of memory on a computer that has 4 GB
| ^^^
| of memory installed, the computer must meet the following requirements:
Your false statement is not getting better when posting even more nonsense.
EOD and EOT from my side.
C
Colin Barnhorst
KB929605 is about Vista. Since Vista x86 SP1 now reports 4GB when 4GB is
installed it appears you drew the wrong conclusions.
installed it appears you drew the wrong conclusions.
U
Unknown
BIOS has nothing whatsoever to do with maximum storage. It is hardware
architecture. Example:
Those devices using DMA (direct memory access) preclude windows from using
those memory locations.
architecture. Example:
Those devices using DMA (direct memory access) preclude windows from using
those memory locations.
J
jorgen
Unknown said:Those devices using DMA (direct memory access) preclude windows from using
those memory locations.
I think DMA and memory mapped IO are two different things. DMA involves
your RAM, MMIO doesn't
T
Tim Slattery
Colin Barnhorst said:XP can manage 4GB but the BIOS may make less available. It varies depending
on the BIOS from about 2.8 to 3.5GB. It is the BIO that determines this,
not Windows.
It's the hardware really. The BIOS will allocate as much address space
as is necessary to address video RAM, itself (the BIOS) whatever other
PCIx resources need address space.
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.