when to use /3gb switch?

[Guest tdubb]

When do I need to use the /3gb switch? or the /3gb /userva=3030?

 

read somewhere that I need /3gb only when my box has between 1gb to 4gb

physical memory only.

 

anything above 4gb I do not need any switches.

 

 

this is on a virtual machine

[Guest Jabez Gan [MVP]]

Re: when to use /3gb switch?

 

Hi,

 

Please read:

http://blogs.msdn.com/oldnewthing/archive/2004/08/05/208908.aspx

 

You don't use the switch if you have <3GB.

 

--

Jabez Gan

Microsoft MVP: Windows Server

http://www.msblog.org

 

 

"tdubb" <tdubb123@gmail.com> wrote in message

news:eq0sXSpnIHA.3400@TK2MSFTNGP03.phx.gbl...

> When do I need to use the /3gb switch? or the /3gb /userva=3030?

>

> read somewhere that I need /3gb only when my box has between 1gb to 4gb

> physical memory only.

>

> anything above 4gb I do not need any switches.

>

>

> this is on a virtual machine

>

[Guest joe]

Re: when to use /3gb switch?

 

I have a virtual machine assigned 4GB of memory. However when I ass the /3gb

/userva=3030 switch to boot.ini, the performance is very slow.

 

when i take the switch out it is working fine.

 

The machine is windows 2003 and nothing running on it

"Jabez Gan [MVP]" <mingteikg@blizNOSPAMhosting.com> wrote in message

news:BC2781D5-4B04-405E-89DB-ED507E68DBB5@microsoft.com...

> Hi,

>

> Please read:

> http://blogs.msdn.com/oldnewthing/archive/2004/08/05/208908.aspx

>

> You don't use the switch if you have <3GB.

>

> --

> Jabez Gan

> Microsoft MVP: Windows Server

> http://www.msblog.org

>

>

> "tdubb" <tdubb123@gmail.com> wrote in message

> news:eq0sXSpnIHA.3400@TK2MSFTNGP03.phx.gbl...

>> When do I need to use the /3gb switch? or the /3gb /userva=3030?

>>

>> read somewhere that I need /3gb only when my box has between 1gb to 4gb

>> physical memory only.

>>

>> anything above 4gb I do not need any switches.

>>

>>

>> this is on a virtual machine

>>

>

[Guest Thee Chicago Wolf]

Re: when to use /3gb switch?

 

>I have a virtual machine assigned 4GB of memory. However when I ass the /3gb

>/userva=3030 switch to boot.ini, the performance is very slow.

>

>when i take the switch out it is working fine.

 

Maybe because it's a virtual machine.

 

- Thee Chicago Wolf

[Guest Filipe Matias]

Re: when to use /3gb switch?

 

tdubb wrote:

> When do I need to use the /3gb switch? or the /3gb /userva=3030?

>

> read somewhere that I need /3gb only when my box has between 1gb to 4gb

> physical memory only.

>

> anything above 4gb I do not need any switches.

>

>

> this is on a virtual machine

>

>

Any service on the machine(SQL, Exchange....)

[Guest tdubb]

Re: when to use /3gb switch?

 

none. nothing at all. running w2k3 sp1 and all hotfixes.

 

4GB ram assigned and /3GB /userva=3030 switch very slow performance

"Filipe Matias" <filipe.matias@unitek.pt> wrote in message

news:%23iBRcWxnIHA.3780@TK2MSFTNGP06.phx.gbl...

> tdubb wrote:

>> When do I need to use the /3gb switch? or the /3gb /userva=3030?

>>

>> read somewhere that I need /3gb only when my box has between 1gb to 4gb

>> physical memory only.

>>

>> anything above 4gb I do not need any switches.

>>

>>

>> this is on a virtual machine

> Any service on the machine(SQL, Exchange....)