Maybe you're talking about Intel Turbo Cache Memory (Robson Technology)? If you have the Intel Rapid Storage Technology installed on your system it should recognize that card. Edit:
Oops! should have looked before....soap mouth i'm!
Looks not all of your notebook Dell models have the option of Turbo Boost:
- Intel Core i3-2330M 2.2GHz, dual core
- Intel Core i3-2350M 2.3GHz, dual core
- Intel Core i5-2450M 2.50GHz with TurboBoost up to 3.1GHz, dual core
- Intel Core i7-2670QM 2.2GHz with TurboBoost up to 3.1GHz, quad core