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Good installation practises for DMS3:
Wires D and E should be routed flat along the
motherboard and should not cross any other wires.
Avoid passing the wires accross large BGA chips, since this will
create interference The same principal goes for O and X. Failure
to follow this rule can result in crosstalk between the wires and
cause a black screen on boot.
***This is particularly important on V3/4 gap bios'.***
We cannot stress enough how important it is to pay attention to
the length and thickness of the ground wire! This is a common error
and is the cause of the majority of non functioning installations.
Often resulting in a black screen on boot. Long, thin wires will
cause "ground-bounce" between the chip and the PS2 motherboard
resulting in failure.
If your chip fails with a black screen on boot, check the aforementioned
points. It is likely that the install is at fault and not the chip.
A replacement chip will not remedy a flawed install. Unless you
fix of the cause of the problem, i.e. the wire length, type, positioning
the DMS3 will not function correctly.
The DMS3 patches approximately 100 times more data than other chips
such as magic3 and messiah2. It also draws more current due to the
extra components on-board, such as the flash. It is therefore more
sensitive to dubious installations.
Chips with a lesser feature set do not have the
same current requirements and therefore are less sensitive incorrect
usage of wire type for +ve and -ve.
Just because your wiring works with a magic3 or messiah2 does
not mean that it follows basic electronic "good practices",
nor is it an indication that the DMS3 chip is at fault.
If the above procedures are followed, your DMS3 will function correctly
without a glitch!
PS2 fails to boot (black screen):
Check points D-N. Fix your power and ground wires. Ensure that D
and E are laid flat against the motherboard. Fix your power and
grounds. Make sure you haven't bridged any pins on the BIOS chip
of the PS2, the Actel on the DMS3 or the flash chip on the DMS3.
PS2 games fail to authenticate:
Check points M-W. Fix your power and ground wires. Ensure that M
is laid flat against the motherboard.
PS1 games fail to authenticate:
Check point X. Fix your power and ground wires.
PS2 acts as though no chip were installed:
Check point C (Eject). If this wire is not connected, the chip may
think you are holding down Eject and go in to Sleep Mode. The same
will happen if C is bridged with ground, but in that case you will
not be able to turn the PS2 on from stand-by using the Eject button.
Fix your power and grounds.
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