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= Overview =
Several arcade systems have been built around the PS2 hardware. While some systems use almost stock PS2 hardware (the Konami Python 2 going as far as cramming an entire unmodified SCPH-50000 console into the arcade chassis), other systems use a more custom approach with later Namco systems being based on entirely custom motherboards.
Sony provided some PS2 chassis specifically for use in arcade systems. These are:
* COH-H30000
** Based on B-chassis GH-004 together with it's daughterboard (GD-011)
** Differences compared to normal retail GH-004 boards include (but are not necessariliy limited to):
*** Special [[MechaCon]] version (CXP102064-'''651R''')
*** Special [[SysCon]] version on the daughterboard (1V86)
*** Special arcade BIOS
*** Missing expansion bay connector
*** Missing one of two [[CDVD Drive]] connectors
*** Missing IC205 (digital video encoder)
*** Missing [[Drivers|Driver ICs]] for the [[CDVD Drive]]
*** Missing some more small components
*** A special connector is installed on normally unpopulated pads
* COH-H31000
** Based on C-chassis (GH-006?) together with it's daughterboard (GD-013?)
* COH-H31100
** Based on C-chassis GH-006 '''without''' it's daughterboard (the daughterboard's functionality including SysCon is now provided by another board inside the arcade system)
** Differences compared to normal retail GH-006 boards include (but are not necessariliy limited to):
*** Special MechaCon version (CXP102064-'''651R''')
*** Special arcade BIOS (A 000 010)
*** Missing expansion bay connector
*** Missing [[CDVD Drive]] connector
*** Missing [[DEV9C]]
*** Missing IC205 (digital video encoder)
*** A special connector is installed on normally unpopulated pads
= Arcade systems =
==Konami Python==
==Konami Python==
====Specifications====
====Specifications====
''Note: Based on COH-H31000 (see above).''
''Note: Basically just a B-chassis GH-004 PS2 board with it's accompanying daughter boards''


====Known games====
====Known games====
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==Konami Bemani Python==
==Konami Bemani Python==
====Specifications====
====Specifications====
''Note: Based on COH-H31000 (see above).''
====Known games====
====Known games====
* Dancing Stage Fusion
* Dancing Stage Fusion
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*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz, with 128-bit SIMD capabilities
*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz, with 128-bit SIMD capabilities
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*System memory: 32 MB 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*System memory: 32 MB RIMM 3200 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics memory: 4MB eDRAM
*Graphics memory: 4MB eDRAM
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*Media: CD-ROM, DVD-ROM, Hard Disk Drive
*Media: CD-ROM, DVD-ROM, Hard Disk Drive


''Note: Built around a complete stock Playstation 2 console (Model SCPH-50000 (MB/NH) - Japanese NTSC), with a hard drive and an adaptor board.''
''Notes : It's a Playstation 2 (Model SCPH-50000 (MB/NH) - Japanese NTSC), with a hard drive and an adaptor board.''


====Known games====
====Known games====
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*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz, with 128-bit SIMD capabilities
*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz, with 128-bit SIMD capabilities
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*System memory: 32 MB 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*System memory: 32 MB RIMM 3200 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics memory: 4MB eDRAM
*Graphics memory: 4MB eDRAM
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*Media: CD-ROM, DVD-ROM, Hard Disk Drive
*Media: CD-ROM, DVD-ROM, Hard Disk Drive


''Note: Built around a complete stock Playstation 2 console (Model SCPH-50000 (MB/NH) - Japanese NTSC), with a hard drive and an adaptor board.''
''Notes : It's a Playstation 2 (Model SCPH-50000 (MB/NH) - Japanese NTSC), with a hard drive and an adaptor board.''


====Known games====
====Known games====
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====Specifications====
====Specifications====
* Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz (Overclocking to 299 MHz on System 256), with 128-bit SIMD capabilities
*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz (Overclocking to 299 MHz on System 256), with 128-bit SIMD capabilities
* Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
* System memory: 32 MB 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*System memory: 32 MB RIMM 3200 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
* Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
* Graphics memory: 4MB eDRAM
*Graphics memory: 4MB eDRAM (8MB on System 256)
* Sound: "SPU1+SPU2"
*Sound: "SPU1+SPU2"
* Security: 8 MB 3.3V NAND FlashROM Security Dongle (basically a PS2 Memory Card with a different MagicGate IC), which the system will actually boot and load more game-specific storage device drivers from
*Media: CD-ROM, DVD-ROM, Hard Disk Drive, 64 MBit 3.3V NAND FlashROM Security Dongle
* Media:  
** CD-ROM
** DVD-ROM
** Hard Disk Drive


The System 246 exists in 4 main revisions ([https://wiki.arcadeotaku.com/w/Namco_System_246/256 Source]):
''Note: Based around a slightly modified B-chassis GH-004 PS2 board''
* The first variant (System 246 "Driving") is built around the Sony COH-H30000 (see above) and does not have a JAMMA interface
* A second variant (System 246 Rev.A) is still built around the Sony COH-H30000 (see above), but has different Namco boards and a JAMMA interface (except in the "Gun" variant)
* A third variant (System 246 Rev.B) is usually built around the Sony COH-H31100 (see above), although rare cases of it being built around a COH-H30000 are known. It also features a lot of other changes
* A fourth variant (System 246 Rev.C) is based on a fully custom board (similar, but not identical to System 256, and still with separate EE and GS) and comes in a much smaller enclosure


====Known games====
====Known games====
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*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 299 MHz, with 128-bit SIMD capabilities
*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 299 MHz, with 128-bit SIMD capabilities
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*System memory: '''64 MB''' 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*System memory: 32 MB RIMM 3200 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics memory: 4MB eDRAM
*Graphics memory: 8MB eDRAM
*Sound: "SPU1+SPU2"
*Sound: "SPU1+SPU2"
* Security: 8 MB 3.3V NAND FlashROM Security Dongle (basically a PS2 Memory Card with a different MagicGate IC), which the system will actually boot and load more game-specific storage device drivers from
*Media: CD-ROM, DVD-ROM, Hard Disk Drive, 64 MBit 3.3V NAND FlashROM Security Dongle
* Media:  
** CD-ROM
** DVD-ROM
** Hard Disk Drive
 
''Note: Based on a fully custom board around [[EE+GS]]''


====Known games====
====Known games====
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*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 299 MHz, with 128-bit SIMD capabilities
*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 299 MHz, with 128-bit SIMD capabilities
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*System memory: '''64 MB''' 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*System memory: 32 MB RIMM 3200 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics memory: 4MB eDRAM
*Graphics memory: 8MB eDRAM
*Sound: "SPU1+SPU2"
*Sound: "SPU1+SPU2"
* Security: 8 MB 3.3V NAND FlashROM Security Dongle (basically a PS2 Memory Card with a different MagicGate IC), which the system will actually boot and load more game-specific storage device drivers from
*Media: CD-ROM, DVD-ROM, Hard Disk Drive, 64 MBit 3.3V NAND FlashROM Security Dongle
* Media:  
** CD-ROM
** DVD-ROM
** Hard Disk Drive
 
''Note: Based on a fully custom board around [[EE+GS]]''


''Note: Namco Super System 256 seems to be the same as regular Namco System 256 but it has the gun board integrated.''
''Note: Namco Super System 256 seems to be the same as regular Namco System 256 but it has the gun board integrated.''
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*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz, with 128-bit SIMD capabilities
*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz, with 128-bit SIMD capabilities
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*System memory: 32 MB 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*System memory: 32 MB RIMM 3200 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics memory: 4MB eDRAM
*Graphics memory: 4MB eDRAM
*Sound: "SPU1+SPU2"
*Sound: "SPU1+SPU2"
*Media: Onboard NAND flash
*Media: 64 MBit 3.3V NAND FlashROM Security Dongle? Integrated ROM.


''Note: Based on a fully custom board around [[EE+GS]]. This is an extremely stripped down system; there isn't even a MechaCon (unlike with System 246/256), so this system deviates a lot from standard PS2 architecture. It uses onboard flash storage to store the game software.''
Note: Namco System 147 is similar to 246 but does not use a DVD-ROM drive, instead it has ROM chips on the system board.


====Known games====
====Known games====
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*Medal No Tatsujin 2  
*Medal No Tatsujin 2  
*Pac-Man Battle Royale  
*Pac-Man Battle Royale  
*Pac-Man's Arcade Party (can also be System 148?)
*Pac-Man's Arcade Party
 
==Namco System 148==
====Specifications====
*Main CPU: MIPS III R5900-based "Emotion Engine", 64-bit RISC operating at 294.912 MHz, with 128-bit SIMD capabilities
*Sub CPU: MIPS II R3000A IOP with cache at 33.8688 MHz
*System memory: '''64''' MB 32-bit dual-channel (2x 16-bit) RDRAM (Direct Rambus DRAM) @ 400 MHz, 3.2 GB/s peak bandwidth
*Graphics: "Graphics Synthesizer" operating at 147.456 MHz
*Graphics memory: 4MB eDRAM
*Sound: "SPU1+SPU2"
*Media: Onboard NAND flash
 
''Note: Based on a fully custom board around [[EE+GS]]. This is an extremely stripped down system; there isn't even a MechaCon (unlike with System 246/256), so this system deviates a lot from standard PS2 architecture. It uses onboard flash storage to store the game software.''
 
''Mostly identical to System 147, but RAM has been doubled to 64 MB and a connector has been removed. Boards with a copyright date as late as 2014 exist.''
 
====Known games====
* Animal Kaiser
* Pac-Man's Arcade Party (can also be System 147?)
* Umimonogata Lucky Marine Theater (海物語ラッキーマリンシアター)
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