Microsoft KB Archive/909382

= You receive a &quot;More than two processors were detected in this computer&quot; warning message when you install Windows Small Business Server 2003 =

Article ID: 909382

Article Last Modified on 12/3/2007

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APPLIES TO


 * Microsoft Windows Small Business Server 2003 Standard Edition
 * Microsoft Windows Small Business Server 2003 Premium Edition

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SYMPTOMS
When you install Microsoft Windows Small Business Server 2003 on a two-processor, multicore computer, you receive a warning message that is similar to the following:

Windows Small Business Server 2003 supports two processors. More than two processors were detected in this computer. The server will only use two processors. However, hyperthreading by processors is supported. To continue Setup, select the I acknowledge all warnings check box.



CAUSE
This issue occurs because the error-flagging code in Windows Small Business Server 2003 incorrectly identifies each core in a single, multicore processor as multiple physical processors.



WORKAROUND
To work around this issue, click to select I acknowledge all warnings and continue with the installation. Windows Small Business Server 2003 will recognize and use all cores on both processors.



MORE INFORMATION
Windows Small Business Server 2003 supports a maximum of two physical processors, even if the processors are multicore or hyper-threaded.

For example, if you use two dual-core processors, each physical processor contains two cores. Therefore, four virtual processors are available. Windows Small Business Server 2003 will recognize and support all four virtual processors.

Similarly, if you use two dual-core, hyper-threaded processors, eight virtual processors are available. Windows Small Business Server 2003 will recognize and support all eight virtual processors.

