Adding a processor to server

[Francis Flan]

Hi,
I want to add a 2nd processor to a BL460c running Windows 2003 (with SAP CRM).
"Microsoft ACPI-Compliant System" is listed in the Device Manager.

I know in certain situations a rebuild is required.
Can i ask for input pls?
thanks

[Matti_Kurkela]

(Disclaimer: I'm not very familiar with current Microsoft server products: last time I worked with MS servers was with NT4 and early Win2k.)

If the existing processor is dual-core and both cores are working correctly before the upgrade, your server should already be multiprocessor-capable and no rebuild is needed.

If the existing processor was a single-core model, it might be necessary to switch to a multiprocessor HAL. However, Microsoft documentation seems to say that Windows 2003 can do that automatically when necessary: adding an extra CPU will cause "New Hardware Detected" at next system boot, and it will automatically install the multiprocessor HAL and reboot if necessary.

http://support.microsoft.com/kb/309283

Even the lowest "Web Edition" of Windows 2003 can support two processors (even if they are dual- or quad-core ones), so it looks like there won't be a rebuild for licensing reasons either.

MK

[Igor Karasik]

In windows 2003 you don't need to do any additional operations when you add CPU