Recently, my PS3 sometimes has problems to start up. My model is the 40 GB version, circa 2008.

I'd like to say this doesn't always happen when I want to turn my PS3 on.
Once I do so, after a while, the LED changes to yellow and then to red quickly, with a triple beep. After that, the console won't start up while the red LED flashes continuously. In this situation, I have to press the On/Off button so the LED stops flashing (and thus, turning off the PS3) and later, I turn it on again.
After all this, my PS3 either repeats the same actions stated above, or start up normally, usually at the second attempt.

I've read the blackwiggle's post, and I don't know if the symptoms he described will be similar to my PS3 after several months, and later on, it'll be doomed to crash forever. Any advice or tips for my problem will be appreciated.