PSP Power Controller by SnyFbSx allows to set various options on your PSP.

Changes:

When displayed in English, CPU clock display is missing fixes.
Draw tentative deal canceled.
(Reason: there is a problem for the homebrew operation found)
*PSP Filer isn’t on display and will be as specified.
FW6.39 based CFW (LCFW) of the support.

http://wololo.net/talk/viewtopic.php?f=26&t=5739