Here is the link for the information you will need.
Preware: (Check out the Getting Started Preware forum)
Overclocking Palm Pre
1. Install Uberkernel.
To install Uberkenel, open Preware and select List of Everything. start typing Uberkernel. Install Uberkernel and select later when it ask you to restart.
2. Install Govnah inside Preware. Open Preware and select List of Everything and start typing Govnah. Install govnah and restart the phone.
3. Open Govnah and select Profile.
4.Choose which profile you want and your done. Note: Screenslate is more preferred because it will keep the Temperature down on your phone because it will revert to 500mhz when the device is in Standby. Use Govnah to watch the temp of your phone.
5. Install Battery Monitor to check Battery Temp (Optional)
If you have any question's, just respond to the post or ask 1 of the Moderator's of the Forums.