Overclocking a PSP allows you to increase the clock speed on which the main CPU operates, benefiting performance in some games.
 | Overclocking your PSP imposes a risk of instability, overheating, quicker battery drainage, and permanent damage to the console. Do this at your own risk. |
Requirements
- A PSP running ARK-5; the PS Vita is not supported for this guide
Setting it up
- Navigate to Extras—->Custom Frimware Settings, Scroll down a bit and you should see two options being:
- CPU Clock in Game
- CPU Clock in XMB
- Open any of the two options and you should see a set of nimble ranging from 133 to 443, This is the clock speed you’ll be setting your PSP to in MHz.
- Select any speed you want to set your PSP to. If you don’t know what to choose, please check FAQ section.
FAQ
What clock speed should I set my PSP? There’s no universal number, Each PSP got it’s own limits regardless of model number, motherboard revision, etc. The recommended method to find out is to incrementally. So:333—->383–>403 and so on, until you find your PSP hard spot After setting a very high clock speed all my games crash; what can I do?
- Go back to your Custom Firmware settings and lower the clock speed to whatever it was when it was working, with some games it may be a issue with the “Use Extra Memory” Option causing them to crash rather than the overclock
Does overclocking the XMB improve anything?
- No, not really. It may improve loading times for some menus and the media player, but that is about it.
I set a very high XMB clock speed and now my PSP isn’t booting, what can I do??
- Press SELECT while booting; this will bypass loading ARK settings preferences while still loading CFW itself, so you’ll still be able to change settings