Message Edited by intel.software.network.support on 11-15-2005 11:39 PM
A hardware engineer asked us to pass along the following. Please keep in mind, though,that Intel Customer Support is still the best contact for end-user support issues, as our focus is on software development:
Another thing to check is to ensure the key OS components installed onyour machineare MT-aware (supporting multiple CPUs). The background is that when Windows gets installed, the installer detects the hardware configuration and installs different component dlls. The difference can be verified by examining the Device Managers computer key.
If Windows installs XP Home or XP pro with multi-processor support, the value of the computer key will show
ACPI Multiprocessor PC
If the XP Home or XP Pro installer sees the hardware as only one logical processor, it installs the key dll supporting only one processor. After you finish the OS installation, the Device Manager will show the computer key as
Advanced Configuration and Power Interface (ACPI) PC or
ACPI Uniprocessor PC.
For example, If Windows is installed when theBIOS settinghas HT turned off on a Pentium 4 processor, the OS image that gets installed will only support one CPU, and Task Manager will show only 1. After the uniprocessor-support DLL is installed on yourhard disk, turning on HT in the BIOS will not change the fact thatyou have the wrong component installed. Youll need to make sure that before theOS is installed, HT is enabled by BIOS.