(adsbygoogle = window.adsbygoogle || []).push({}); The following requires the power switch in the back to be on...

Hold Power button down for 6 seconds (while PS3 is on): turns off PS3.

Hold Eject button down for 6 seconds (while PS3 is on): force disc to eject.

Hold Eject button down for 12 seconds (while PS3 is on): reset Blu-ray.

Hold Power button down for two beeps (while PS3 is off): Reset video to lowest settings.

Hold Power button down for three beeps (while PS3 is off): Enter PS3 diagnostic mode (repeat procedure twice)

Hold PS button down on controller for 10 seconds: Turns off Sixaxis or Dualshock 3.

The PS3 can enter a special "Service Mode". When it does the bottom right hand corner of the screen has a red translucent rectangle with the words "Playstation 3. Factory/Service Mode" inside of the rectangle. It is rumored that by plugging a special JIG in the USB port (and then pressing both Eject and Power button at the same time), the PS3 shuts down and is triggered into Service Mode the next time it boots up. This special mode then accepts firmware code loaded in from the USB port, and allows reflashing the firmware chip.

Hmm, didnt know this, interesting.

Yup very interesting post

you forgot one. for on the 40 gig and the slims, if you unplug the power and hold your finger on the eject button and then plug it in while your finger is still on it, it does the fan test mode, which basically cleans out your system of dust.

ok so is this true because I really need to know

60gb aswell and it can be done on an 80gb fat aswell

Yea it is correct, however i don't think it is very good for the hardware. You know how unstable PS3 can be as it is. If your aim is to clean out the system of dirt, i would recommend a small vacuum.
Peace.

How do you do it on 60GB? Does it involve blocking the fans?

sorry it was an 80gb i meant to put

i have a 60gb

did the fan test and it fired up and that was an 80gb

Cheers dude