First time modchip installing - V12 PS2

[Gold4all]

So basically I will try to buy a modchip and install it on my old ps2 v12 pal unit. The problem is as it follows - should I get Modbo 4.0, Modbo 760 or Matrix 1.99? Not only from a performance aspect, but from ease-of-installing aspect. And my most biggest problem, what is the laserfix? For example, the modbo 4.0 chip is sold with and without an additional piece. What is this? I hope I will get some answers from you people who know more than me. Thanks!

[LopoTRI]

I think you should use the "original" Matrix, cause you can "update" it. But be careful of clones!!!! By trying to update a clone you destroy the mod-chip.

1. the additional piece is a fix for the V12 only, first releases. There is a bug in the laser-driver that gives the laser wrong power and destroy the laser or the laser-chip.

2. Not all v12 need the fix. Some say for versions v12.1, v12.2, some say v13.
If you need to do the laser-fix depends on your board.
The "diode-fix" (on your picture) is only to make make money, say all people when you read threads. It doesn´t help really.
For that use the Sum0ne-fix it´s cheaper and help better...

Look the picture in the thread below, if your board looks like the picture, then you have to make the "fix".

http://psx-scene.com/forums/f110/v12...12/#post436292 (V12 Laser fix help)

If your board looks like this picture below, then you don´t need a "fix" (don´t look the red cable and the resistor, has nothing to do with it)...

V13 Board