How to Make 32-bit windows and linux systems support 64 GB memory

Source: Internet
Author: User
For more information about how to enable 32-bit windows and linux systems to support 64 GB memory-Linux Enterprise applications-Linux server applications, see the following. From: http://blog.163.com/herod_xiao

The relationship between the number of computer addresses and memory. The maximum memory supported by a 32-bit computer is 2 to the power of 32 to 4 GB, and the maximum memory supported by a 64-bit computer is 2 to the power of 64 to 1.84467e+10 billion bytes, 4G, which is too big. It is N or more G and cannot be used for a lifetime;

At present, 4G memory does not allow us to use it in the production environment. It is not enough for the system to use, but enterprises are faced with expensive 64-bit systems. Therefore, in order to reduce the cost, we use the physical address extension (PAE) technology to add 4-bit addressing to 36 bits, and the 36-bit address of 2 is 64 GB, therefore, the PAE physical address extension allows the system to support a maximum of 64 GB memory. The specific implementation methods are as follows:

Windows Configuration

Right-click "my computer" on the desktop, select "advanced", click "Settings" under "Start and restore", and then click "edit" in the box"

To open the BOOT. ini file, modify the file, and add spaces/PAE to it, as shown below:

Multi (0) disk (0) rdisk (0) partition (2) \ % systemroot % = "Windows Server 2003, Datacenter Edition"/PAE

On the File menu, click Save ". To make the change take effect, restart your computer.

Linux Configuration

Install kernel-PAE.i686 kernel to support PAE physical address extension

Yum install kernel-PAE.i686

Set linux Startup to enable the PAE kernel system.
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