Since i have (i think) a V9 pal console, i've decided to post matrix team a letter asking them about the v9 simptom, and the MXL2 involvement in V9 killing.
Thay reply fast at the same day!
here's there response:
thanks for your mail.
As a first reply to your question, let me clarify that the V9 death
are not a modchip related problem.
The MXL2 Modchip "hears" the communications coming to and from
the Bios (and CD/DVD controller) and regulates these communications
to enable the recognition of the Import Games or Back-Up copies.
It does not "forces" or "stresses" the PS2 or any one of its components
in any way.
Many people belive (and I am one of them) that $ony released
in such a hurry the new V10 model becouse of general low quality
problem with the components of the V9 boards.
We know for sure that $ony maintenance centers have been
instructed to collect all the broken V9 PS2 and change them
with V10 motherboard models.
Just to give you some numbers, one of our shops during the first
two weeks of December had a 3% death rate of "UNMODDED" V9 PS2.
All of them with the same sintoms (laser stopped reading anything).
Since the introduction of the V10 model no dead V10 has been
reported until today.
From a phisical point of view, it looks like the main reason for the
failure is coming from failure of the LB chip and general failure of
Laser optic group.
These parts are not involved with the operations of the Modchip.
Some guy on Ps2Newz forum are telling in this days that they found
out how to fix the problem, but until now there is nothing sure.
There still is a lot of confusion around the reasons of the sudden
death of the V9 PS2.
I can only suggest for the people modding V9 PS2 to take the
following EXTRA care and precautions:
1) Always use electrostatic bracelet, to avoid static sparks
that might damage the Lb or the Optic Group
2) Always use a low power welding Iron to avoid overheating of
the motherboard and surrounding components during welding.
3) Sony is shipping V9 without conductive rubber over the LB
Always add a piece of conductive rubber over the LB chips
before closing the PS2.
4) DO NOT test V9 PS2 for long time without closing it or
without having an external fan blowing air to cool down the
Optic Group and the LB chipset to avoid overheating.
Hope this will help.
The Matrix Team