I have no idea...
I never saw that thread, but I guess it could work. I wouldn't risk it though in my case.
I think this CPU I have only has 512kb of L2 cache, and its probably set up right.
It seems Windows automatically tries to find the right amount, and may not get the full amount or something if its true.
Abit IP35 Pro / Q6600 G0 / Zalman 9700 / 8800GTS 640mb / 4x 2GB Corsair XMS / X-FI Xtreme M / 1x 1TB / Antec 900 / Logitech Z-5500 / Samsung 20inch