Questions tagged [pae]

PAE stands for Physical Address Extensions. It's a memory address extension that enables support of greater than 4 GB of physical memory for 32-bit processors.

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Why 32-bit Windows can maximum have 16TB Page File?

According to Microsoft, the page file sizes of 64-bit and 32-bit Windows are 256TB and 16TB respectively. In 64-bit, the virtual address looks like this: With 4 levels of 9-bit memory mapping fields ...
Richard Chung's user avatar
-1 votes
1 answer
887 views

Linux distro sought which will install on older 32-bit PC without PAE

I want to put Linux on a older 32-bit laptop without PAE; it has Windows 7 now. When I try to install my favorite distro, that fails and tells me the PC's CPU lacks PAE support. How may I find a ...
coolman911099's user avatar
1 vote
1 answer
491 views

Ubuntu install fails on Panasonic Toughbook CF-30

Installing Ubuntu up on my Panasonic Toughbook CF-30 fails. Every time I try to boot to the DVD that I burned the distro image onto, it gives me an error message with something to do with a PAE kernel....
greenops011's user avatar
3 votes
4 answers
255 views

Will the performance of my Laptop increase if I migrate from Ubuntu 14.04 32 bit to 16.04 64 bit?

I have i5-3230M CPU @ 2.60GHz processor and 8GB RAM in my Thinkpad T530 laptop. Normally I have 6-7 pinned (gmail, whatsapp, slack, keep etc) and up to 10 open tabs in Chrome, virtualbox with ...
Alexey Demin's user avatar
54 votes
2 answers
116k views

When do I have to use PAE/NX?

I would like to know when I need to use PAE/NX and when I don't. Do I always need it, or can I not use it on my virtual machine?
Winnie The Pooh's user avatar
1 vote
1 answer
3k views

Does my processor support PAE?

I currently have the following system specifications: Windows 7 64-Bit Athlon 64 X2 (W) 4600+ 2.4 GHz 8GB of RAM 500 GB HD I'm planning on installing Xubuntu as a dual partition along side my ...
user avatar
1 vote
0 answers
1k views

How to force enable PAE at Windows Setup Startup

Is there a way to force Windows Setup to enable PAE (physical adress extension) at start up, like I can do with linux installations ("/forcepae")? I found an MSDN-Page about Physical Address ...
CrazyMetal's user avatar
0 votes
3 answers
2k views

How to turn on PAE

How do I turn on PAE on my windows 8.1 computer. I don't need a lecture about what it is, I just need to know how to turn it on so I can run Kali Linux from a virtual box. One is installed om my ...
Weirdest's user avatar
4 votes
6 answers
47k views

Bypass PAE, NX, and SSE2 upgrade requirements from Windows 8 to Windows 8.1

On one of my old computers I am having the problem of upgrading to windows 8.1 because my computer does not support PAE, NX, and SSE2. How was I able to install Windows 8 in the first place? I heard ...
Jonathan's user avatar
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3 answers
7k views

Can't boot from USB to install Linux

Now I have Win7 on my laptop, and I want to install Linux. I downloaded the latest Ubuntu 13.04 32-bit (and also Mint 15 32-bit), and installed it on my flash drive using the Universal USB Installer – ...
LWZ's user avatar
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1 vote
6 answers
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Reliable PAE patch for Windows 7 Ultimate

I just installed Windows 7 Ultimate x86 (32-bit) on a computer with 16GB of RAM, so naturally it won't use all the available memory because my system is 32-bit. I searched for a solution and found ...
Gerard's user avatar
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1 answer
771 views

Ubuntu 12.04 32 bit not seeing my 8 GB RAM

I have Ubuntu 12.04 32 bit with PAE enable. Linux alptugay-MS-7693 3.2.0-39-generic-pae #62-Ubuntu SMP Wed Feb 27 22:25:11 UTC 2013 i686 athlon i386 GNU/Linux I have been using my computer with 4 GB ...
Alptugay's user avatar
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0 votes
1 answer
1k views

Why does a 32bit Vista only use 3GB RAM? [duplicate]

A 32bit Window Vista Home Premium installed as a virtual machine does not use more than 3071GB RAM regardless how much is configured in the VM settings. PAE is enabled according to WMI. Strange is ...
marekful's user avatar
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2 votes
1 answer
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OOM killer despite lots of free memory on PAE kernel

We have an application server which for legacy reasons still runs on 32bit kernel with PAE (Ubuntu 12.04 LTS). The server has 24GB of RAM, as seen in the output of free: $> free -lmt ...
Stefan Seidel's user avatar
2 votes
3 answers
4k views

32 bit windows max ram with discrete graphics card

I understand that if I have an integrated graphics and 4 gb of ram, windows 7 needs to address some of it o the integrated ones. However how come if I have a discrete graphics card with 1 gb of vram, ...
agz's user avatar
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1 answer
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How can I enable NX on my HP notebook?

I have an HP G62 Notebook PC running win7 64 bit. I want to install win8, but the "Windows 8 Upgrade Assistant" says secure boot isn't supported. I ran core info which shows NX, PAE and SSE2 are all ...
ZIN's user avatar
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1 vote
1 answer
2k views

Enabling PAE on Windows XP

When I try to enable the PAE switch in boot.ini nothing happens. I save the file and reboot, then reboot the system again to install Lubuntu and it says that there isn't PAE enabled. To be more ...
user1610406's user avatar
0 votes
1 answer
1k views

How does PAE work for windows XP? How do i "Install" it?

I wanted to install XP on a second drive; Mostly to run older games, but im not sure how PAE works. I wanted originally just to run it on a VirtualMachine but theres AV sync lag and Mouse lag, Im ...
TardisGuy's user avatar
  • 492
0 votes
1 answer
1k views

Error installing Windows 8 RTM, probably nx/PAE support

I'm having trouble installing Windows 8 RTM. When the install starts it shows me an error 0x0000005D, which I found on the internet and is about the nx/PAE feature. I have an Intel Celeron 2.8GHz and ...
Michael Str's user avatar
8 votes
3 answers
22k views

Error 0xc0000260 when installing Windows 8 Consumer Preview on an old laptop

I'm attempting to install Windows 8 Consumer Preview on a Dell Inspiron 8600, and I am getting a 0xc0000260 error. Googling around, I found that others get this error when installing on a Virtual ...
jrr's user avatar
  • 201
1 vote
3 answers
6k views

Optimum use of Windows7 32bit PAE Ramdisk (3GB + 1GB PAE)

Besides switching to Windows 64bit (or Linux 64bit) what is the best strategy to make the most of my 1GB PAE ramdisk (on a Laptop with a slow harddrive)? Here http://windows7themes.net/how-to-use-...
kermit's user avatar
  • 119
2 votes
2 answers
3k views

Is the Win7 32-bit kernel still able to use 2 GB with a Large Address Aware program running?

I'm currently running Windows 7 Professional 32-bit with 6 GB of RAM. I use a PAE patch to enable use of more than 3.5 GB of RAM in 32-bit Windows. A similar discussion took place here: How can I ...
White Phoenix's user avatar
0 votes
1 answer
227 views

Installed linux-image-686-pae and now my second monitor won't work

I just installed linux-image-686-pae on my Debian system and the PAE kernel effectively increased the memory limit. However for some reason my dual monitors both show the same image, instead of an ...
Matt Alexander's user avatar
4 votes
3 answers
2k views

PAE benefits to threaded programs in a 32-bit Windows system

If I have a system with more than 4GB of RAM, and PAE enabled (on a 64-bit CPU), will a threaded 32-bit application be able to use 4GB total, or 4GB per thread? I ask because I am running DAW (...
gjsmo's user avatar
  • 210
1 vote
2 answers
448 views

Fedora 15 with PAE

I installed FC 15 onto a laptop that previously had XP installed. While XP reported that Physical Address Extension was enabled, I am unable to find any reference to it in Fedora. How can I tell if ...
BenGC's user avatar
  • 435
5 votes
6 answers
73k views

How to check if PAE is enabled? (Windows 7 32 bits)

How to tell for sure if PAE (Physical Address Extensions) is enabled or not? There is a SPECIFIC command I can use? I can read a registry value or something? (Windows 7 32 bits) I have found this ...
IceCold's user avatar
  • 2,091
14 votes
6 answers
24k views

Windows XP + PAE + 6GB RAM: See more than 3.5GB?

Firstly let me say I've seen a number of similar questions on SuperUser, and I don't think this is a duplicate. (Most address 4GB RAM installed. I have 6GB) I have Windows XP 32-bit running on a i7-...
nonot1's user avatar
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2 votes
3 answers
8k views

Ubuntu 10.04 32-bit - How to check if kernel is PAE-enabled?

I know that 32-bit 10.04 enables PAE on installation when it detects 3+ GB RAM, but I'd like to know a way to manually check (i.e. in the terminal) that PAE is, in fact, enabled.
William's user avatar
  • 577
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2 answers
514 views

Missing PAE on Ubuntu 10.04 - inaccessible RAM

I upgrade my system (using the built-in upgrade mechanism) from 9.10 to 10.04. My kernel is reported now as 2.6.32-24-generic (that means 32 bit, right?) The systems seems to only be able to access ...
GJ.'s user avatar
  • 9,843
0 votes
1 answer
4k views

Enable 4 GB RAM usage on Windows 7 32-bit [duplicate]

Possible Duplicate: Why does Windows only show about 3.5 GB of my more than 4 GB of RAM? I have 4 GB of RAM which I understand is the maximum for Windows 7 32 bit. My system recognizes the 4&...
Jakob's user avatar
  • 205
3 votes
1 answer
726 views

negative effect of running PAE kernel?

Fedora, and other distros install a PAE kernel if the hardware supports it. Are there any negative effect on running a PAE kernel on a machine with less than 3-4Gb ram ?
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1 vote
2 answers
1k views

How to fully use the 4 GB of RAM in my Laptop under Ubuntu 9.10 - 32-bit

I have a Toshiba A100, which I upgraded to 4 GB of RAM. The hardware startup indeed shows 4 GB of RAM, and I recently installed Windows 7, just to see how it behaves on it. So far so good, it displays ...
jfmessier's user avatar
  • 2,780
0 votes
2 answers
1k views

Ubuntu 9.10 x86_32 with PAE causes graphics issues, mainly slowness

I've tried the 64bit version and found I was constantly hitting a brick wall trying to get 32bit stuff to run; I'd previously used PAE on 9.04 without any issues so figured I'd give it a shot. ...
Christopher Lightfoot's user avatar
37 votes
9 answers
182k views

How can I enable PAE on Windows 7 (32-bit) to support more than 3.5 GB of RAM?

I know that Windows XP 32-bit can be configured, through PAE, to support more than 3.5 GB of RAM. Is there a good tutorial to do this with Windows 7 32-bit? As to why I don't simply use 64-bit ...
Niphoet's user avatar
  • 765
1 vote
3 answers
823 views

What are the biggest, best CPUs that support Physical Address Extension?

I'm looking for a CPU that will support PAE and fit into an LGA775 socket. This combination of technology is very much preferred for my current server hardware/software setup. My priorities in ...
Giffyguy's user avatar
  • 1,032
10 votes
5 answers
3k views

What happens when you install > 4GB of RAM in a computer with a 32-Bit OS?

So I'm a programmer and I'm not a complete idiot so I know exactly why you can't access memory where you can't have pointers. But I've never tried this and I don't think I ever will because it seems ...
Peter Turner's user avatar
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10 votes
10 answers
44k views

8GB RAM on XP Professional [duplicate]

I recently installed 8GB of RAM onto a quad core workstation (HP xw8600) running Windows XP Pro (32-bit). I added the /PAE switch in the boot.ini file, but the SysInfo is saying 3GB total memory ...
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