BL c-class memory

[Jacky Wing]

Hello,

I have many Bl c-class servers, all of them have the AMD Optheron CPU, as I understand this CPU is 32 bit. now some of these servers have up to 12 GB memory. In windows server 2003 I only see 4 GB.

1- is it possible to install windows server 2003 64 bit on a 32 bit architecture?

2-should I use the /PAE switch to be able to address the 12 GB memory. because I read that this is an intel command. Is it applicable for AMD also?

[Víctor Cespón]

Check this advisory:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=110&prodSeriesId=1842750&prodTypeId=15351&prodSeriesId=1842750&objectID=c00883105

c-Class blades with AMD processors use AMD Opteron processor Model 22xx.
AMD Opteron 2200 series processors are 64-bit, dual-core, and support AMD Virtualization

Windows 2003 Standard only supports 4 GB in 32 Bits (16 GB in 64-bit version).

http://msdn2.microsoft.com/en-us/library/aa366778.aspx

[James ~ Happy Dude]

1-Yes.
2-Yes.

PAE works for processors mainly from intel,.. but also AMD processors(not all)

Regards.

[Jacky Wing]

I have two types of c-class blades. One of them uses the 2218 AMD processor and the others use the 8216 AMD processor. I checked in AMD and in HP it is not listed as 64 bit.

Are you sure they are 64 bit?

If not can I use the /PAE with AMD processor?

So you are saying that installing a 64 bit OS will solve my problem

[James ~ Happy Dude]

>If not can I use the /PAE with AMD processor?
Yes.

>So you are saying that installing a 64 bit OS will solve my problem.
It can... but 32 bit will also work... with PAE.

Regards.

[Víctor Cespón · Accepted solution]

Where did you find that the 82xx opterons do not support 64 bit?
Check here:

http://products.amd.com/en-us/OpteronCPUDetail.aspx?id=284

http://h18004.www1.hp.com/products/quickspecs/12576_div/12576_div.html

AMD Opteron 8200 series processors are 64-bit, dual-core, and support AMD Virtualization

[Jacky Wing]

right on the money vcespon. Thank you!!, I also checked in the BL465c training I have that this is an AMD64.

Thx guys.

[rick jones]

One of the main points AMD pushed about the *Opterons* from day one was the support for 64-bit virtual addressing. It has been that way long enough that some writeups may just take that knowledge for granted.