important question to you all.

[TEDDYRUKSPIN]

I have just got a mod-chip installed on my ps2 10000 JAP NTSC machine. The person who installed it for me would not tell me the chips name but it looks like an jap origa chip. It has more than 14+ installed and is really complex. In order to play backup games an GS or AR is still required. DVDR backups don't require a original dvd to back it up.
Now, the question is this chip more likely an origa chip? Another, question I was told that once installed the ps2 is prone to being fried, hence overheated if I play the ps2 to long. Is this true?
I was also told that the chip will not allow me to play PAL games? Is this true? I have yet to have a pal game to check this out. All I know is that I am able to play original USA, JAPanese PS2 games and backup games. The main purpose of this installation was to play original USA, JAP, and PAL games.
Can any of you guys answer my question?
Also is the only way I can play pal games is to backup up the original and patch it with the files available here?

Thank you guys.
This sight is the best!