just installed a Q9300 in EX38-DS4 Rev.1.1 board...
3:4 (Memory multi 2.66Dx. MCH Strapping - FSB 400MHz)
5:6 (Memory multi 2.40Bx. MCH Strapping - FSB 333MHz)
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Q9300 500FSB
http://valid.x86-secret.com/show_oc.php?id=385207
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Don't worry overly much about whether a specific KB article exists for your version of Windows.
Standard practice is to grab whatever's available and apply the principles.
(I grabbed from the web. Written by someone, somewhere on the web)