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learner
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 Posted: Sun Dec 30, 2007 3:38 am Post subject: Getting XP Pro to see 4GB of memory |
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Just upgraded my Windows XP SP2 box to 4GB of memory. My BIOS sees 4096MB.
I've added the /PAE option to boot.ini but it still says "3.62GB of RAM"
when I look at system properties. what am I missing?
Below is the whole boot.ini:
[boot loader]
timeout=5
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
Professional" /PAE /fastdetect /NoExecute=OptIn
C:\CMDCONS\BOOTSECT.DAT="Microsoft Windows Recovery Console" /cmdcons |
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| Posted: Sun Dec 30, 2007 3:38 am Post subject: Advertisement |
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Shenan Stanley
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| Posted: Sun Dec 30, 2007 3:50 am Post subject: Re: Getting XP Pro to see 4GB of memory |
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learner wrote:
| Quote: | Just upgraded my Windows XP SP2 box to 4GB of memory. My BIOS sees
4096MB. I've added the /PAE option to boot.ini but it still says
"3.62GB of RAM" when I look at system properties. what am I missing?
Below is the whole boot.ini:
[boot loader]
timeout=5
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP
Professional" /PAE /fastdetect /NoExecute=OptIn
C:\CMDCONS\BOOTSECT.DAT="Microsoft Windows Recovery Console"
/cmdcons
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Install Windows XP x64 instead (if you have a 64bit capable system.)
Otherwise - you are getting all you will get out of WIndows XP 32bit.
--
Shenan Stanley
MS-MVP
--
How To Ask Questions The Smart Way
http://www.catb.org/~esr/faqs/smart-questions.html |
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VanguardLH
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| Posted: Sun Dec 30, 2007 10:43 am Post subject: Re: Getting XP Pro to see 4GB of memory |
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"learner" wrote in message news:SoEdj.20523$yV5.7797@newsfe15.phx...
| Quote: | Just upgraded my Windows XP SP2 box to 4GB of memory. My BIOS sees
4096MB.
I've added the /PAE option to boot.ini but it still says "3.62GB of
RAM"
when I look at system properties. what am I missing?
|
<snip>
http://support.microsoft.com/kb/888137/en-us |
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Bob Peters
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| Posted: Sun Dec 30, 2007 1:19 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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VanguardLH wrote:
Limiting memory. Looks like a rather ugly bug introduced in SP2. I do
hope that SP3 includes a fix for that when and if it ever comes out.
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Stan Brown
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| Posted: Sun Dec 30, 2007 4:17 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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Sun, 30 Dec 2007 07:19:38 -0600 from Bob Peters
<bob@bobpeters61pretenses.us>:
You might want to read the cited text before commenting.
It's pretty obvious that this code is behaving as Microsoft intended.
--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com/
"If there's one thing I know, it's men. I ought to: it's
been my life work." -- Marie Dressler, in /Dinner at Eight/ |
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Unknown
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| Posted: Sun Dec 30, 2007 4:38 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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Not a bug. Hardware architecture limits memory addressing to about 3.2 gig.
"Bob Peters" <bob@bobpeters61pretenses.us> wrote in message
news:1199020172_9533@sp6iad.superfeed.net...
| Quote: | VanguardLH wrote:
http://support.microsoft.com/kb/888137/en-us
Limiting memory. Looks like a rather ugly bug introduced in SP2. I do
hope that SP3 includes a fix for that when and if it ever comes out.
Posted Via Usenet.com Premium Usenet Newsgroup Services
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Xandros
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| Posted: Sun Dec 30, 2007 4:54 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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"Bob Peters" <bob@bobpeters61pretenses.us> wrote in message
news:1199020172_9533@sp6iad.superfeed.net...
This is by design. It is not a bug.
--
Xandros |
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Unknown
Guest
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| Posted: Sun Dec 30, 2007 5:21 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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Once again you read something into a post and misinterpret. 'The hardware
takes what it needs and the rest of the unused addresses are available for
memory'.
If that doesn't equate to 'hardware architecture limitation' what is it in
your words??
Since all memory is used (not all by programs) I think it to be brilliant
hardware design.
Think of all the hardware address bits saved.
"John John" <audetweld@nbnet.nb.ca> wrote in message
news:Od03dSwSIHA.5016@TK2MSFTNGP06.phx.gbl...
| Quote: | It's not a bug and what you say is also incorrect. There was an
"intentional" change made in SP2 to deliberately limit the available limit
to about 3.2GB. The hardware architecture does not limit memory
addressing, it takes what it needs and the rest of the unused addresses
are available for the installed RAM, prior to SP2 that could be as high as
3.75GB, it all depends on the hardware installed in the box.
The changes in SP2 were made for compatibility reason with some drivers,
probably because of poorly written drivers if you ask me. In any case I
think that it is a dumb fix, one of these Microsoft dillies! Because
"some" drivers are screwy everybody, whether or not they have screwy
drivers, should be denied the use of potentially available memory above
3.2GB, what a kludge of a fix! Anyway, someone told me in another group
that they have 4GB on XP 32-bit with SP2 and that they are able to see
much more than the 3.2GB limit that was supposedly introduced with SP2 so
I don't quite know what to make of this SP2 fix.
John
Unknown wrote:
Not a bug. Hardware architecture limits memory addressing to about 3.2
gig.
"Bob Peters" <bob@bobpeters61pretenses.us> wrote in message
news:1199020172_9533@sp6iad.superfeed.net...
VanguardLH wrote:
http://support.microsoft.com/kb/888137/en-us
Limiting memory. Looks like a rather ugly bug introduced in SP2. I do
hope that SP3 includes a fix for that when and if it ever comes out.
Posted Via Usenet.com Premium Usenet Newsgroup Services
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Unknown
Guest
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| Posted: Sun Dec 30, 2007 5:23 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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Exactly.
"Xandros" <arron.neus*remove*@gmailcom> wrote in message
news:ue47mSwSIHA.6060@TK2MSFTNGP05.phx.gbl...
| Quote: |
"Bob Peters" <bob@bobpeters61pretenses.us> wrote in message
news:1199020172_9533@sp6iad.superfeed.net...
VanguardLH wrote:
http://support.microsoft.com/kb/888137/en-us
Limiting memory. Looks like a rather ugly bug introduced in SP2. I do
hope that SP3 includes a fix for that when and if it ever comes out.
This is by design. It is not a bug.
--
Xandros
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jorgen
Guest
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| Posted: Sun Dec 30, 2007 6:31 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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Unknown wrote:
| Quote: | Not a bug. Hardware architecture limits memory addressing to about 3.2 gig.
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The x86 architecture includes PAE, which expands the address space well
above 4G. Both xp and vista includes a PAE kernel, but limits the
physical address space to 4G anyway |
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Stan Brown
Guest
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| Posted: Sun Dec 30, 2007 8:13 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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Sun, 30 Dec 2007 10:54:24 -0600 from Xandros
<arron.neus*remove*@gmailcom>:
| Quote: |
"Bob Peters" <bob@bobpeters61pretenses.us> wrote in message
news:1199020172_9533@sp6iad.superfeed.net...
VanguardLH wrote:
http://support.microsoft.com/kb/888137/en-us
Limiting memory. Looks like a rather ugly bug introduced in SP2. I do
hope that SP3 includes a fix for that when and if it ever comes out.
This is by design. It is not a bug.
|
The word "misfeature" is useful here -- intended behavior that seems
remarkably ill-chosen.
--
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
http://OakRoadSystems.com/
"If there's one thing I know, it's men. I ought to: it's
been my life work." -- Marie Dressler, in /Dinner at Eight/ |
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Leonard Grey
Guest
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| Posted: Sun Dec 30, 2007 8:40 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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"...intended behavior that seems remarkably ill-chosen."
Sorry I arrived late. Is this discussion about my mother-in-law?
---
Leonard Grey
Errare humanum est
Stan Brown wrote:
| Quote: | Sun, 30 Dec 2007 10:54:24 -0600 from Xandros
arron.neus*remove*@gmailcom>:
"Bob Peters" <bob@bobpeters61pretenses.us> wrote in message
news:1199020172_9533@sp6iad.superfeed.net...
VanguardLH wrote:
http://support.microsoft.com/kb/888137/en-us
Limiting memory. Looks like a rather ugly bug introduced in SP2. I do
hope that SP3 includes a fix for that when and if it ever comes out.
This is by design. It is not a bug.
The word "misfeature" is useful here -- intended behavior that seems
remarkably ill-chosen.
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Bob Peters
Guest
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| Posted: Sun Dec 30, 2007 9:17 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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jorgen wrote:
| Quote: | Unknown wrote:
Not a bug. Hardware architecture limits memory addressing to about 3.2
gig.
The x86 architecture includes PAE, which expands the address space well
above 4G. Both xp and vista includes a PAE kernel, but limits the
physical address space to 4G anyway
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Not trying to be sarcastic here, but am actually curious:
You shop for a decent new motherboard, you're usually looking at a
capacity for 8G on one that's "Designed for Windows XP" and "Windows
Vista Certified." (at the time I'm writing this)
What's the point if you can only address half of that, max?
Surely the hardware can't require 4G behind the scenes, even if you're
building a monster gaming rig to go gunning for the Angry German Kid in
"Unreal."
Is the higher capability entirely for those early adapters who are going
64-bit even without many goodies yet compatible?
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Tim Slattery
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| Posted: Sun Dec 30, 2007 9:50 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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"learner" <kgoshi@cox.net> wrote:
| Quote: | Just upgraded my Windows XP SP2 box to 4GB of memory. My BIOS sees 4096MB.
I've added the /PAE option to boot.ini but it still says "3.62GB of RAM"
when I look at system properties. what am I missing?
|
I'd guess that your hardware doesn't support PAE. Your 32-bit system
has a 4GB address space, but some of that must be used to access video
RAM, BIOS, etc. See http://members.cox.net/slatteryt/RAM.html
--
Tim Slattery
MS MVP(Shell/User)
Slattery_T@bls.gov
http://members.cox.net/slatteryt |
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Tim Slattery
Guest
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| Posted: Sun Dec 30, 2007 9:51 pm Post subject: Re: Getting XP Pro to see 4GB of memory |
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John John <audetweld@nbnet.nb.ca> wrote:
| Quote: | No, I did not misinterpret your post. You said:
Hardware architecture limits memory addressing to about 3.2 gig.
That is incorrect. Implementations in SP2 limits memory addressing to
about 3.2GB, not the hardware architecture. Don't bother with a reply!
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That's not true.
--
Tim Slattery
MS MVP(Shell/User)
Slattery_T@bls.gov
http://members.cox.net/slatteryt |
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