Some Pentium 4 multiprocessor platforms will benefit from enabling the use of extended memory manager interface (XMMI) memory zeroing.
NOTE: You MUST check with your original equipment manufacturer before implementing this tip because some Pentium 4 multiprocessor platforms will experience a performance degradation.
To enable XMMI memory zeroing:
1. Copy / Paste the following to a XMMIZeroingEnable.reg file:
REGEDIT4
\[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\kernel\]
"XMMIZeroingEnable"=dword:00000001
2. Merge the XMMIZeroingEnable.reg file with your registry, or run regedit /s XMMIZeroingEnable.reg.
3. Shutdown and restart Windows Server 2003.
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