Esto lo encontre en un foro de por ahi perdido por si a alguien le vale para algo aqui esta
Salu2
Messiah 2 Review
The Messiah 2 maker kindly sent me a number of Messiah 2 modchips to test and here is my report on its functionality on US v7 GH-019 BIOS 050
PS2 SYSTEM
NTSC v7 SCPH 39001 GH-019 BIOS 050
INSTALLATION
1 hour + glue drying time + assembly/disassembly
The Messiah 2 replaced an in-situ Magic 2 V7 (RED). The following wiring differences are to be noted:
1 Messiah 2 adds a CLK (Clock) wire to draw its clock from the PS2.
2 There are 8 wires associated with the CD/DVD Controller; E is added
3 Wire W on Magic 2 has a different designation with Messiah 2
4 The BIOS has an extra wire (as per Messiah 1) - W
5 There is no Z wire required on the Messiah 2
PS2 ORIGINAL IN-REGION
OK Final Fantasy X (DVD NTSC US)
OK Metal Gear Solid 2 (DVD NTSC US)
PS2 ORIGINAL IMPORT
OK DOA2 (DVD NTSC JAP)
OK Time Splitter 2 (DVD PAL)
OK GTA 3 (DVD PAL)
OK Medal of Honour (DVD PAL)
OK Xenosaga (DVD9 NTSC JAP) - booted first time every time
PS2 BACKUP GAMES
OK Tony Hawk 3 (DVD-R PAL)
OK Wipeout Fusion (DVD-R PAL)
OK EA NBA Street (CD-R, NTSC-US)
OK Twisted Metal Black (CD-R, Kalisto Rip)
PS1 GAMES
OK FF IX (CD NTSC-JAP)
OK FF IX (CD-R NTSC US)
DVD MOVIE (Long RESET)
OK - no skipping
AR2 WITH CODES
OK GTA3 PAL Original With Codes
OK GTA3 PAL DVD-R backup With Codes
VERDICT
100%. Behaved perfectly.
ADDITIONAL NOTES
Messiah 2 used was the PRO version
Playstation2 logo properly displayed - not scambled nor in gravure
Perfect PS1 screen display in PAL & NTSC
Reliable booting from RESET or EJECT button as per standard PS2
DVD9 Xenosaga game booted first time every time
Messiah 2 turns off if RESET held till electrons swirl
