By default, Windows NT uses 256k (or less) of your L2 cache
Your system may come with more than 256k of L2 cache, but Windows NT may not be recognizing all of it!
If your motherboard has more than that, it's time to dive into the registry.
Navigate to HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Control \ Session Manager \ Memory Management.
Find the following value name: SecondLevelDataCache.
A data value of "0" is default, which sets the L2 cache to 256k.
If you have a different amount installed, set its value in decimal form.
If you have 512k cache, set the entry to 512 in decimal.
It's almost like a free upgrade! P.S. This tip is for Windows NT only.