It is currently Thu Sep 02, 2010 6:07 pm

All times are UTC - 6 hours [ DST ]



Shop The MacOSG Apple Store | 50% Off AppleCare Protection Plans | Discounts at Buy.com | $14.95 Mac|Life Subscription



Post new topic Reply to topic  [ 10 posts ] 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject: Windows XP only sees 2GB of installed 4GB
PostPosted: Tue Nov 07, 2006 10:08 am 
Offline
User avatar

Joined: Mon May 16, 2005 1:21 pm
Posts: 166
When I do a 'Properties', XP reports it only sees 1.98 GB RAM, of the total 4GB installed onmy Mac Pro.

WinXP Pro, Service Pack 2.

Any extensions, updates that I have to install to enable it to see the full 4GB?

TIA,

_________________
MacPro Quad 2.0 GHz (Upgraded to 2.33 Octo!!), 16GB RAM, 10.5.7, 2 x 1TB, 2 x 320 GB HDs, ATi X1900XT 512MB, Dual Sun 18" LCDs

http://vizarch.blogspot.com


Top
 Profile  
 

Post details
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Tue Nov 07, 2006 10:51 am 
Offline
USA Podcast Crew Member
User avatar

Joined: Wed Jul 06, 2005 2:11 am
Posts: 819
Location: London
Hey Tim,

I'm seeing the same thing here, 1.98 gig from 6. Afraid I dont know how to get windows to see the rest, So I'll just park myself here and wait for one of our XP experts to help us out.

You are not alone... ;)

mic

_________________
MacPro 2 x 3.0 Dualcore Xeon 6 GB RAM
PowerMac G5 2 x 2.7 3.5 GB RAM
PowerBook G4 1.67 2 GB RAM
MacBookPro C2D 2.5 4GB RAM


Top
 Profile  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Tue Nov 07, 2006 12:27 pm 
Offline
Blues in the Night Podcast Host
User avatar

Joined: Sun Feb 13, 2005 1:22 pm
Posts: 578
Location: Pocola, Ok
Well your both doing better than me...it only shows 1.38 gig of ram out of 4 gig... But to its credit things run faster with that 1.38 gig on the Mac than they do on my pc with 2 gig of ram..

_________________
Atari 800 with 256 Ram 2 Floppy drives
13" Color Monitor, Sparta Dos
Still works just fine...


Top
 Profile  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Tue Nov 07, 2006 2:03 pm 
Offline
MacOSG Technical Assistant
User avatar

Joined: Sun Apr 17, 2005 5:16 pm
Posts: 3360
Location: New Hampshire, USA
Windows XP is designed to run on a PC BIOS that provides hardware info to the operating system. Seeing how Boot Camp is beta software, it may simply be reported incorrectly in the Computer Properties.

How much RAM does it show installed and available in Task Manager? What happens if you keep loading applications into memory, will it use more than the reported amount?

_________________
Michael Snow
24" Aluminum iMac
13" MacBook Pro
Mac Mini Core 2 Duo
Mac Mini G4
iPhone


Top
 Profile E-mail  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Wed Nov 08, 2006 3:06 am 
Offline
User avatar

Joined: Mon May 16, 2005 1:21 pm
Posts: 166
Mic, James --

Bummer.

Have alook at the last post here:

http://discussions.apple.com/thread.jsp ... &tstart=15

It's to do with the EFI emulation of an old-school BIOS that's the problem.

Let's hope for a quick fix...

Or a Universal Binary of SketchUp.

Following Michael's suggestion, Task Manager shows:

Physical Memory (k)

Total 2075076
Available 120XXXX

Commit Charge (whatever THAT is)

Total 706XXX
Limit 4013516

But at least it's seeing all four cores.

_________________
MacPro Quad 2.0 GHz (Upgraded to 2.33 Octo!!), 16GB RAM, 10.5.7, 2 x 1TB, 2 x 320 GB HDs, ATi X1900XT 512MB, Dual Sun 18" LCDs

http://vizarch.blogspot.com


Top
 Profile  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Wed Nov 08, 2006 11:00 am 
Offline
USA Podcast Crew Tips & Tricks Guru
User avatar

Joined: Wed Jan 26, 2005 10:26 pm
Posts: 3220
Location: Modesto, CA
Welcome back to the world of Windows memory allocation limits, a place I thought I escaped from for good when I bought my 68000 Atari ST in 1984!

_________________
Rick - K6LE
24" 2.8Ghz Intel C2D iMac (Penryn) 4 GB RAM
10.6.4
G4 Cube (Tiger)
16 GB 3G iPhone
32 GB 3G iPad


Top
 Profile E-mail  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Wed Nov 08, 2006 11:51 am 
Offline
User avatar

Joined: Mon May 16, 2005 1:21 pm
Posts: 166
And here's some more info, for those amongst us who like chastising themselves with scorpions...

http://www.microsoft.com/whdc/system/pl ... AEmem.mspx

Apparently, even if XP can see its 4GB limit (you need other, more expensive versions of XP if you want to address more than 4GB), each app / process can only address 2GB of that 4GB. You can make each app see up to 3GB, however, by manually editing the boot.ini file.

Easy!

_________________
MacPro Quad 2.0 GHz (Upgraded to 2.33 Octo!!), 16GB RAM, 10.5.7, 2 x 1TB, 2 x 320 GB HDs, ATi X1900XT 512MB, Dual Sun 18" LCDs

http://vizarch.blogspot.com


Top
 Profile  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Wed Nov 08, 2006 12:18 pm 
Offline
USA Podcast Crew Member
User avatar

Joined: Wed Jul 06, 2005 2:11 am
Posts: 819
Location: London
hi Tim,

seems like I might have been following you round the net today. ;) I was trying to track down a vaguely remembered fix for the 2 gig limit.

you beat me to it.

I do not personally have the knowledge, or confidence to go messing about in the innards of XP. So I am stymied as well.

Even getting the ability for an individual app to access 2 gig would be a step in the right direction, so I might see if I cant get someone more experienced to help me with the boot.ini file....

cheers,
mic

_________________
MacPro 2 x 3.0 Dualcore Xeon 6 GB RAM
PowerMac G5 2 x 2.7 3.5 GB RAM
PowerBook G4 1.67 2 GB RAM
MacBookPro C2D 2.5 4GB RAM


Top
 Profile  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Wed Nov 08, 2006 12:24 pm 
Offline
User avatar

Joined: Mon May 16, 2005 1:21 pm
Posts: 166
mic --

Are you about 5' 11", wearing a shapbby brown trenchcoat...? ;)

Anyway, for the moment, we're stuffed with the 2GB limit. Changing the boot.ini file wont give you 3GB of RAM -- it would just let a single app access 3GB of RAM, if XP could see the 4GB total.

Clear as mud.

_________________
MacPro Quad 2.0 GHz (Upgraded to 2.33 Octo!!), 16GB RAM, 10.5.7, 2 x 1TB, 2 x 320 GB HDs, ATi X1900XT 512MB, Dual Sun 18" LCDs

http://vizarch.blogspot.com


Top
 Profile  
 
Windows XP only sees 2GB of installed 4GB
Author Message
 Post subject:
PostPosted: Wed Nov 08, 2006 1:06 pm 
Offline
USA Podcast Crew Member
User avatar

Joined: Wed Jul 06, 2005 2:11 am
Posts: 819
Location: London
Quote:
mic --

Are you about 5' 11", wearing a shapbby brown trenchcoat...? Wink


How DO you do that ??? :D

mic

_________________
MacPro 2 x 3.0 Dualcore Xeon 6 GB RAM
PowerMac G5 2 x 2.7 3.5 GB RAM
PowerBook G4 1.67 2 GB RAM
MacBookPro C2D 2.5 4GB RAM


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Not a MacOSG Member yet? Join Mac Owner's Support Group. Register here.



MacMall - Your #1 Apple Superstore! (logo/phone)
TigerDirect
en_ww_skype_callphones_120x60.gif


MacOSG Gear Store | Netflix - Only $5.99 a month | Make Unlimited Calls via Skype
Contact Us | Mac611 Mobile Mac Support | MacOSG YouTube Channel | MacOSG Podcast | YML Show Studio


Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Macinscott 3 style by HighDefGeek