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= Overview =
= Overview =
PS2 contains one or two Mask-ROMs, "BOOT ROM" containing the [[Bios|BIOS]] and "DVD ROM" containing the [[DVD Player]], with the latter being optional, since early PS2 consoles (SCPH-10000 and SCPH-15000, A-chassis) came without DVD Player preinstalled. On these consoles, it had to be installed onto Memory Card from the [[Utility Disc]] bundled with the console. [[PSX]] also has no DVD Player in ROM; it's loaded from HDD instead. In many consoles containing a version of the DVD Player in ROM, it is physically located within the same ROM chip as the BIOS. Despite this, the DVD Player section of the ROM is electrically addressed independently and handled as a separate device by [[IOP/Deckard|IOP]]. Other consoles contain two physically separate ICs. Many fat and early slim motherboards have solder pads for both variants and can have these installed either way.
PS2 contains one or two Mask-ROMs, "BOOT ROM" containing the [[Bios|BIOS]] and "DVD ROM" containing the [[DVD Player]], with the latter being optional, since early PS2 consoles (SCPH-10000 and SCPH-15000, A-chassis) came with no DVD Player preinstalled. On these consoles, it had to be installed onto Memory Card from the [[Utility Disc]] bundled with the console. [[PSX]] also has no DVD Player in ROM; it's loaded from HDD instead. In many consoles containing a version of the DVD Player in ROM, it is physically located within the same ROM chip as the BIOS. Despite this, the DVD Player section of the ROM is electrically addressed independently and handled as a separate device by [[IOP/Deckard|IOP]]. Other consoles contain two physically separate ICs. Many fat and early slim motherboards have solder pads for both variants and can have these installed either way.


BOOT ROM always has a size of 32Mbit/4MByte, while DVD ROM has a size of 16Mbit/2MByte until G-chassis (thus until SCPH-390XX) and 32Mbit/4MByte from H-chassis onwards (thus from SCPH-5X0XX).
Only in the special Chinese SCPH-50009, there is an additional third ROM, containing a Chinese font set.
 
Only in the special Chinese SCPH-50009, there is an additional third ROM-partition, containing a Chinese font set. This ROM-partition resides in the physical DVD ROM IC, which is a 64 Mbit/8MByte part in these consoles.


''' The following sections are incomplete and work in progress! '''
''' The following sections are incomplete and work in progress! '''
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All BIOS and DVD ROMs have the version of the BIOS / DVD Player they store marked on the IC. In all consoles except A-chassis (SCPH-10000 and SCPH-15000), these versions are prefixed with a "B" for BIOS (e.g. B-20-030) or a "D" for DVD (e.g. D-221-030). On ROMs containing both, BIOS and DVD Player, both versions are printed separately on the IC. Instead of the dashes within the version numbers given in the examples, the writing can also have spaces, or no separator at all.  
All BIOS and DVD ROMs have the version of the BIOS / DVD Player they store marked on the IC. In all consoles except A-chassis (SCPH-10000 and SCPH-15000), these versions are prefixed with a "B" for BIOS (e.g. B-20-030) or a "D" for DVD (e.g. D-221-030). On ROMs containing both, BIOS and DVD Player, both versions are printed separately on the IC. Instead of the dashes within the version numbers given in the examples, the writing can also have spaces, or no separator at all.  
=== Fat consoles ===
=== Fat consoles ===
For the BIOS ROM, the first digit defines the region (e.g. 0 for Japan, 1 for North America, 2 for Europe). The second digit defines the console type (e.g. 0 for Retail, 1 for Dev). For the DVD Player ROM, it additionally also defines the DVD Region Code (and PAL capability?).  
For the BIOS ROM, the first group of digits defines the region (e.g. 00 for Japan, 10 for North America, 20 for Europe). For the DVD Player ROM, it additionally also defines the DVD Region Code and PAL capability.  
The second group defines the actual version.
The second group defines the actual version.


BIOS Examples:</br>
BIOS Examples:</br>
B-00-100: 0 = Japan, 0 = Retail, 100 = version (from a Japanese SCPH-10000 console)</br>
B-00-100: 00 = Japan, 100 = version (from a Japanese SCPH-10000 console)</br>
B-01-100: 0 = Japan, 1 = Dev, 100 = version (from a Japanese DTL-H10000 console)</br>
B-20-030: 20 = Europe, 030 = version (from a UK SCPH-35003 console)
B-20-030: 2 = Europe, 0 = Retail,  030 = version (from a UK SCPH-35003 console)
 
'''Note: While Russian ROMs have the same BOOT ROM version labelled as their European counterparts, their actual content appears to be different. This is subject to further research.'''


DVD Examples:</br>
DVD Examples:</br>
D-020-020: 0 = Japan, 2 = DVD region code 2, 0 = NTSC only?, 020 = version (from a Japanese SCPH-18000 console)</br>
D-020-020: 0 = Japan, 2 = DVD region code 2, 0 = no PAL capability, 020 = version (from a Japanese SCPH-18000 console)</br>
D-341-110: 3 = Oceania, 4 = DVD region code 4, 1 = PAL and NTSC (however, region code must match)?, 110 = version (from an Australian SCPH-50002 console)</br>
D-341-110: 3 = Oceania, 4 = DVD region code 4, 1 = PAL capability, 110 = version (from an Australian SCPH-50002 console)
D-552-111: 5 = Russia, 5 = DVD region code 5, 2 = ???, 111 = version (from a Russian SCPH-50008 console)


=== Slim consoles ===
=== Slim consoles ===
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= Known BOOT ROM versions =
= Known BOOT ROM versions =
== Fat consoles ==
== Fat consoles ==
=== Japan ===
* '''00-100'''
* '''00-100 (2000-01-17)'''
** BOOT ROM of early SCPH-10000 consoles (A-chassis, GH-001)
** BOOT ROM of early SCPH-10000 consoles (A-chassis, GH-001)
** Found in consoles manufactured until March 25th, 2000
** Found in consoles manufactured until March 25th, 2000
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** Contains the Protokernel, which lacks several features and has several differences to later versions, creating some issues with homebrew software
** Contains the Protokernel, which lacks several features and has several differences to later versions, creating some issues with homebrew software
** Comes in a different package with a much larger footprint than all other ROMs except 00-100 and 00-101
** Comes in a different package with a much larger footprint than all other ROMs except 00-100 and 00-101
* '''00-101 (2000-02-17)'''
* '''00-101'''
** BOOT ROM of later SCPH-10000 and all SCPH-15000 consoles (A-chassis, GH-001 and some GH-003)
** BOOT ROM of later SCPH-10000 and and all SCPH-15000 consoles (A-chassis, GH-001 and GH-003)
**Found in SCPH-10000 consoles manufactured later on as well as in SCPH-15000 consoles
** Found in SCPH-10000 consoles manufactured later on as well as in SCPH-15000 consoles
**Blocks launching DVD Player 1.00 from Memory Card
** Blocks launching DVD Player 1.00 from Memory Card
**Contains an early revision of the Emotion Engine kernel, which has some bugs related to syscalls
** Contains the Protokernel, which lacks several features and has several differences to later versions, creating some issues with homebrew software
**Comes in a different package with a much larger footprint than all other ROMs except 00-100 and 00-101
** Comes in a different package with a much larger footprint than all other ROMs except 00-100 and 00-101
*'''B-00-012 (2000-10-27)'''
* '''B-00-012'''
**BOOT ROM of SCPH-18000 consoles (A+-chassis GH-003 and AB-chassis GH-008)
** BOOT ROM of SCPH-18000 consoles (A+-chassis GH-003 and AB-chassis GH-008)
**On GH-003, the ROM IC is located on a daughter board due to GH-003 not having the correct footprint at the ROM-pads
** On GH-003, the ROM IC is located on a daughter board due to GH-003 not having the correct footprint at the ROM-pads
**First japanese BIOS to run the final kernel instead of the Protokernel
** First japanese BIOS to run the final kernel instead of the Protokernel
**First japanese BIOS to be bundled with a DVD Player ROM
** First japanese BIOS to be bundled with a DVD Player ROM
*'''B-00-030 (2001-01-18)'''
**BOOT ROM of early Japanese D-chassis consoles (SCPH-30000/35000)
*'''B-00-040 (2001-04-27)'''
**BOOT ROM of late Japanese D-chassis consoles (SCPH-30000)
*'''B-00-090 (2002-04-26)'''
**BOOT ROM of Japanese G-chassis consoles (SCPH-39000)
*'''B-00-103'''
**BOOT ROM of Japanese H-chassis consoles (SCPH-50000/55000)
*'''B-00-110'''
**BOOT ROM of Japanese I-chassis consoles (SCPH-50000/55000)
*'''B-00-120'''
**BOOT ROM of Japanese J-chassis consoles (SCPH-50000)


===North America===
* '''B-10-070'''
*'''B-10-010 (2000-07-27)'''
** BOOT ROM of North American G-chassis consoles (SCPH-39001/39010)
**BOOT ROM of North American B/B'-chassis launch consoles (SCPH-30001)
*'''B-10-040 (2001-04-27)'''
**BOOT ROM of North American D-chassis consoles (SCPH-30001(R))
*'''B-10-050 (2001-07-04)'''
**BOOT ROM of early North American F-chassis consoles (SCPH-30001R)
*'''B-10-060 (2001-10-04)'''
**BOOT ROM of late North American F-chassis consoles (SCPH-30001R)
*'''B-10-070 (2002-02-07)'''
**BOOT ROM of North American G-chassis consoles (SCPH-39001/39010)
*'''B-10-102'''
**BOOT ROM of North American H-chassis consoles (SCPH-50001/50010)


===Europe===
* '''B-20-020'''
*'''B-20-020 (2000-09-02)'''
** BOOT ROM of PAL-European C/C'-chassis launch consoles (SCPH-30003/4)
**BOOT ROM of PAL-European C/C'-chassis launch consoles (SCPH-30003/4)
* '''B-20-030'''
*'''B-20-030 (2000-12-28)'''
** BOOT ROM of PAL-European D-chassis consoles (SCPH-30003/4, SCPH-35003/4)
**BOOT ROM of PAL-European D-chassis consoles (SCPH-30003/4, SCPH-35003/4, SCPH-30003/4R)
* '''B-20-050'''
*'''B-20-050 (2001-07-04)'''
** BOOT ROM of PAL-European F-chassis consoles (SCPH-30003/4R)
**BOOT ROM of early PAL-European F-chassis consoles (SCPH-30003/4R)
* '''B-20-080'''
*'''B-20-060 (2001-10-04)'''
** BOOT ROM of PAL-European G-chassis consoles (SCPH-39003/4)
**BOOT ROM of late PAL-European F-chassis consoles (SCPH-30003/4R)
*'''B-20-080 (2002-03-19)'''
**BOOT ROM of PAL-European G-chassis consoles (SCPH-39003/4)
*'''B-20-090 (2002-04-26)'''
**BOOT ROM of PAL-Russian G-chassis consoles (SCPH-39008)
*'''B-20-101 (2003-02-27)'''
**BOOT ROM of PAL-European H-chassis consoles (SCPH-50003/4)
*'''B-20-103 (2003-06-23)'''
**BOOT ROM of PAL-European I-chassis consoles (SCPH-50003/4)
*'''B-20-120 (2003-08-22)'''
**BOOT ROM of PAL-European J-chassis consoles (SCPH-50004)


===Oceania===
* ''Many versions go here''
*'''B-30-103'''
**BOOT ROM of Australian H-chassis consoles (SCPH-50002, maybe also I-chassis?)


===Hong Kong===
== Slim consoles ==
*'''B-40-050'''
* '''B1110A'''
**BOOT ROM of F-chassis consoles from Hong Kong (SCPH-30006 R)
** BOOT ROM of slim SCPH-70001 (North America) consoles (possibly also other NTSC consoles?)
*'''B-40-090'''
* '''B2110A'''
**BOOT ROM of G-chassis consoles from Hong Kong (SCPH-39006)
** BOOT ROM of slim SCPH-70002/3/4 (all PAL SCPH-7000x?) consoles
* '''B6120B'''
** Universal BOOT ROM of SCPH-75XXX consoles
** Regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
* '''B6130B'''
** Universal BOOT ROM of SCPH-77XXX consoles
** Regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
* '''B6140B'''
** Universal BOOT ROM of SCPH-79XXX consoles and early SCPH-90XXX consoles
** Regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
* '''B6150B'''
** Universal BOOT ROM of late SCPH-90XXX consoles
** Regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
** Patches FMCB
* '''B6160B'''
** BOOT ROM for the PS2 motherboard inside the Bravia KDL-22PX300 TV
** Patches FMCB


===Taiwan===
= Known DVD ROM versions =
*'''B-60-103'''
== Fat consoles ==
**BOOT ROM of Taiwanese H-chassis consoles (SCPH-50007, maybe also I-chassis?)
 
===China===
*'''B-70-103 (2003-06-23)'''
**BOOT ROM of Chinese H-chassis consoles (SCPH-50009)
 
==Slim consoles==
*'''B1110A (2004-06-14)'''
**BOOT ROM of slim SCPH-70001/11/12 (North America) consoles
**''Some'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''B2110A (2004-06-14)'''
**BOOT ROM of slim SCPH-70002/3/4/8 (all PAL SCPH-7000x) consoles
**''Some'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''B3110A (2004-06-14)'''
**BOOT ROM of slim SCPH-70000 (Japan) consoles
**''Some'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''B4110A (2004-06-14)'''
**BOOT ROM of SCPH-70005 (Korea) and SCPH-70007 (Taiwan) consoles
**Probably also used in SCPH-70006 (Hong Kong)
**''Some'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''B6120B (2005-06-20)'''
**Universal BOOT ROM of SCPH-75XXX consoles
**''All'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''B6130B (2006-02-10)'''
**Universal BOOT ROM of SCPH-77XXX consoles
**''All'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''B6140B (2006-09-05)'''
**Universal BOOT ROM of SCPH-79XXX consoles and early SCPH-90XXX consoles
**''All'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''B6150B (2008-02-20)'''
**Universal BOOT ROM of late SCPH-90XXX consoles
**''All'' regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
**Patches FMCB (Use Free DVD Boot instead)
*'''B6160B (2010-04-15)'''
**BOOT ROM for the PS2 motherboard inside the Bravia KDL-22PX300 TV
**Patches FMCB (Use Free DVD Boot instead)
 
==Dev consoles==
*'''01-100'''
**BOOT ROM of early Japanese A-chassis DTL-H10000
*'''01-030'''
**BOOT ROM of Japanese D-chassis DTL-H30000
 
==PSX ==
*'''XB00-010 (2003-10-28)'''
**BOOT ROM for earlier PSX consoles (based on XPD-001, DESR-5000, DESR-7000, DESR-5100, DESR-7100), Japan-only
*''(no custom label)'' '''(2004-09-17)'''
**BOOT ROM for later PSX consoles (based on XPD-005, DESR-5500, DESR-7500, DESR-5700, DESR-7700), Japan-only
**Has no custom label, but instead just has the standard part number of the OKI one-time-programmable-ROM used for this ROM
 
=Known DVD ROM versions=
==Fat consoles==
''Very incomplete''
===Japan===
*'''D-020-020'''
**DVD Player 2.00J
**DVD ROM of all Japanese SCPH-18000 consoles (A+-chassis GH-003 and AB-chassis GH-008)
**On GH-003, the ROM IC is located on a daughter board due to GH-003 not having the correct footprint at the ROM-pads
**First DVD Player to support the IR remote control
*'''D-020-030'''
**DVD Player 2.02J
**DVD ROM of early Japanese D-chassis SCPH-30000 and all SCPH-35000 consoles
*'''D-020-040'''
**DVD Player 2.10J
**DVD ROM of late Japanese D-chassis and all F-chassis SCPH-30000 consoles
*'''D-020-???'''
**DVD Player 2.14J
**DVD ROM of Japanese G-chassis SCPH-37000 consoles
*'''D-020-090'''
**DVD Player 2.16J
**DVD ROM of Japanese G-chassis SCPH-39000 consoles
*'''D-020-1??'''
**DVD Player 3.00J
**DVD ROM of Japanese H-chassis SCPH-50000/55000 consoles
*'''D-020-111'''
**DVD Player 3.02J
**DVD ROM of Japanese I-chassis SCPH-50000/55000 consoles
*'''D-020-120'''
**DVD Player 3.03J
**DVD ROM of Japanese J-chassis SCPH-50000 consoles
 
===North America===
*'''D-110-010'''
*'''D-110-010'''
**DVD Player 1.10U
**DVD Player 1.10U
**DVD ROM of US launch consoles, SCPH-30001 (B-chassis GH-004 and B'-chassis GH-005)
**DVD ROM of US launch consoles, SCPH-30001 (B-chassis GH-004 and B'-chassis GH-005)
**The first ROM-based DVD player to be built into consumer PS2 consoles
**The first ROM-based DVD player to be built into consumer PS2 consoles
*'''D-110-020'''
**DVD Player 1.20U
**DVD ROM of late North American B-chassis and all C-chassis SCPH-30001 consoles
*'''D-110-030'''
**DVD Player 1.30U
**DVD ROM of early North American D-chassis SCPH-30001 consoles
*'''D-110-040'''
**DVD Player 2.10U
**DVD ROM of of late North American D-chassis and all North American F-chassis SCPH-30001'''R''' consoles
*'''D-110-050'''
**DVD Player 2.12U
**DVD ROM of North American G-chassis SCPH-39001/SCPH-39010 consoles
*'''D-110-110'''
**DVD Player 3.00U
**DVD ROM of North American H-chassis SCPH-50001/SCPH-50010 consoles
*'''D-110-111'''
**DVD Player 3.02U
**DVD ROM of North American I-chassis SCPH-50001 consoles
===Mexico===
*'''D-???-???'''
**DVD Player 3.04M (reported as "cvrM040402a" in version info)
**DVD ROM of Latin American/Mexican I-chassis SCPH-50011 consoles
===Europe===
*'''D-221-020'''
*'''D-221-020'''
**DVD Player 1.20E
**DVD Player 1.20E
**DVD ROM of European launch consoles, SCPH-30003/SCPH-30004
**DVD ROM of european launch consoles, SCPH-30003/SCPH-30004
*'''D-221-030'''
*'''D-221-030'''
**DVD Player 1.30E
**DVD Player 1.30E
**DVD ROM of early European D-chassis SCPH-30003/4 consoles (no R behind the model number)
**DVD ROM of early european D-chassis SCPH-30001/2/3/4 consoles (no R behind the model number)
*'''D-221-040'''
*'''D-020-020'''
**DVD Player 2.10E
**DVD Player 2.00J
**DVD ROM of late European D-chassis and all European F-chassis consoles, SCPH-30003/4 '''R'''
**DVD ROM of all japanese SCPH-18000 consoles (A+-chassis GH-003 and AB-chassis GH-008)
*'''D-221-060'''
**On GH-003, the ROM IC is located on a daughter board due to GH-003 not having the correct footprint at the ROM-pads
**DVD Player 2.13E
**First DVD Player to support the IR remote control
**DVD ROM of European G-chassis SCPH-39003/4 consoles
*'''D-221-110'''
**DVD Player 3.00E
**DVD ROM of European H-chassis SCPH-50003/4 consoles
*'''D-221-111'''
**DVD Player 3.02E
**DVD ROM of European I-chassis SCPH-50003/4 consoles
*'''D-221-120'''
**DVD Player 3.03E
**DVD ROM of European J-chassis SCPH-50004 consoles
 
===Oceania===
*'''D-341-040'''
**DVD Player 2.10A
**DVD ROM of late Australian D-chassis and all Australian F-chassis consoles, SCPH-30002 '''R'''
*'''D-341-110'''
**DVD Player 3.00A
**DVD ROM of Australian H-chassis SCPH-50002 consoles (Maybe also I-chassis?)
 
===Korea===
 
*'''D-430-040'''
**DVD Player 2.12K
**DVD ROM of Korean F-chassis consoles, SCPH-30005 '''R'''
 
===Russia===
*'''D-552-090'''
**DVD Player 2.16D
**DVD ROM of Russian G-chassis console, SCPH-39008
*'''D-552-111'''
**DVD Player 3.02D
**DVD ROM of Russian H-chassis consoles (SCPH-50008)
 
=== Asia===
*'''D-630-050'''
**DVD Player 2.12G
**DVD ROM of Hong Kong F-chassis consoles (SCPH-30006 R, Maybe also Korea and Taiwan SCPH-30005/7 R?)
 
*'''D-630-080'''
**DVD Player 2.15G
**DVD ROM of Hong Kong G-chassis consoles (SCPH-39006, Maybe also Korea and Taiwan SCPH-39005/7?)
 
*'''D-630-111'''
**DVD Player 3.02G
**DVD ROM of Asian H-chassis consoles (SCPH-50005/6/7) (Maybe also I-chassis and/or J-chassis?)
 
===China ===
*''deciphered D-762-110 from pictures, exact label needs confirmation''
**DVD Player 3.02C
**DVD ROM of Chinese H-chassis consoles (SCPH-50009, maybe also I-chassis?)


==Slim consoles==
*'''D1010U'''
**Universal DVD ROM used in all SCPH-70XXX K-chassis slim consoles from all regions
**DVD Player 3.10x
**Regional variation is done through on-the-fly patching by MechaCon, determined by region parameters stored in it's EEPROM
*'''D0020U'''
**Universal DVD ROM used in all slim consoles (and the Bravia KDL-22PX300 TV) from all regions, except K-chassis SCPH-70XXX
**DVD Player 3.11x
**Regional variation is done through on-the-fly patching by MechaCon, determined by region parameters stored in it's EEPROM


=Other ROMs=
*''Many versions go here''
==Arcade== 
*'''A-000-010'''
** Arcade BOOT ROM of COH-H31100 (based on GH-006/C-chassis), used in Namco System 246 Rev.B


==Character set==
== Slim consoles ==
*''chip label unknown (deciphered D-762-110, needs confirmation)''  
*'''D1010U'''
**DVD 3.02C + Character set ROM of Chinese SCPH-50009 consoles
** Universal DVD ROM used in SCPH-70XXX slim consoles
** DVD Player 3.10x
** Regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
*'''D0020U'''
** Universal DVD ROM used in all slim consoles (and the Bravia KDL-22PX300 TV) except SCPH-70XXX
** DVD Player 3.11x
** Regional variation is done through on-the-fly patching through MechaCon, determined by region parameters stored in it's EEPROM
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