What is Win2k3 standard edition's max Memory ?

[Daniel Simard]

Hi,
I have a system which is Windows 2003 Server Standard Edition. We inserted 6 gigs of ram but it can only see 3.8Gig, what are the switches (if any) i need to turn on in order for the OS to see all the available ram?

Thanks! Your help is appreciated.

[Rune J. Winje · Accepted solution]

Have a look here
http://www.microsoft.com/whdc/system/platform/server/PAE/PAEmem.mspx

Seems 4 GB is the best you can get with Std Ed.

You can use the /3GB option in boot.ini to reserve 3 GB for applications and 1 GB for the OS. This is often recommended on servers with more than 1 GB RAM.

To get more memory than this for apps you need 64 bit capable hardware (AMD x64 or Intel EMT or IA64) and x64 or IA64 edition of Windows. (32 GB with Std ed.)
http://en.wikipedia.org/wiki/Windows_Server_2003

Cheers,
Rune

[Daniel Simard]

How do i assign points because I don't have the dropdown! I'm using IE6

[Steven Clementi]

Daniel:

If you put in the /PAE switch, you should get 4GB, instead of 3.8GB. I know that is not much better, but it's a start.


Steven

[Alan_152]

without the /pae switch, the nt kernel is limited to 4Gb physical, 4Gb virtual.

with the /pae switch, you can get more physical memory capability, depending on which version of win2k03 you have -- http://www.microsoft.com/whdc/system/platform/server/PAE/PAEdrv.mspx -- by increasing the memory addressing space from 16 bits to 36(?).