PSX Models & BIOS Guide

last updated 30th October 2018.

Download

• THERE ARE NO BIOS DOWNLOAD LINKS ON THIS PAGE: This is simply a detailed list of every known PSX BIOS.
• PSX BIOS DAT-file (corrected, updated and fixed redump.org DAT-file)

Models Guide

• DEVKITS

  • DTL-H2000 - is not a console, but a "developer board" - an addon developer inserts in his PC to write and debug PS games. it was, essentially, a PlayStation bundled in form of PC board with 8 MB instead of 2MB. only licensed developers had access to it. it was released in January, 1994, long before any retail PlayStation were released.

• FIRST GENERATION. motherboard PU-7. Rev. A of GPU, has S-Video

  • SCPH-1000 🇯🇵 - original Japanese console, released on 03 December 1994
  • DTL-H1000 🇯🇵 - Japanese blue-colored debugger. region lockup (for some odd reasons). all debuggers have the same 2MB RAM as regular consoles, information saying about having 8MB is wrong
  • DTL-H1001 🇺🇸 - North American blue-colored debugger. no regional lockup
  • DTL-H1002 🇬🇧 - European blue-colored debugger. no regional lockup
  • DTL-H1000H 🇯🇵 - same as DTL-H1000 but has gray-colored case and updated BIOS. used in display kiosk on events like E3 (they thought that using blue-colored debuggers on E3 will create false assumption that retail console will be of blue color, so they used gray-colored debugger to not confuse journalists and gamers)
  • DTL-H1001H 🇺🇸 - same as DTL-H1001 but has gray-colored case. display kiosk as above
  • DTL-H1002H ❓ - it is quite possible this console exist, but so far nobody have seen one. high chances that this console does not exist, because there were no major game convention in Europe

• SECOND GENERATION. motherboard PU-8. Rev. B of GPU (bug fixes in libraries), has no S-Video

  • SCPH-3000 🇯🇵 - Japanese version, released on 21 July 1995
  • SCPH-1001 🇺🇸 - original North American console, released on 09 September 1995. despite being named SCPH-1001, that console is based on SCPH-3000, not SCPH-1000, Sony used odd numeration here
  • SCPH-1002 🇬🇧 - original European console, released on 29 September 1995. again, based on SCPH-3000, not SCPH-1000
  • SCPH-1003 ❗ - DOES NOT EXIST. there were rumors that Sony released PlayStation in Southeast Asian region alongside SCPH-1001 & SCPH-1002, but it is false. the very first console released in this region were SCPH-5003 / SCPH-5903 (gray import was available, though)

• THIRD GENERATION. motherboard PU-8. changes in CPU (on the part of GTE)

  • SCPH-3500 🇯🇵 - Japanese version, released on 28 March 1996
  • 2nd revision of SCPH-1001 🇺🇸 - Sony released updated versions of SCPH-1001 without altering the numeration. people sometimes referring it as SCPH-1001B to tell the difference from the second generation
  • 2nd revision of SCPH-1002 🇬🇧 - same as above, people referring it as SCPH-1002B
  • DTL-H1100 🇯🇵 - Japanese blue-colored debugger. it has a unique BIOS that is not available on any retail consoles.
  • DTL-H1101 🇺🇸 - North American blue-colored debugger
  • DTL-H1102 🇬🇧 - European blue-colored debugger
  • SCPH-2000 ❗ - DOES NOT EXIST. some sites refer it as "all-region PS", but it is hoax, probably people confusing SCPH-2000 and DTL-H1000. "SCPH-2000" is, btw, the name of prototype adapter for never-released PlayStation keyboard. most probably, Sony thought about giving to console a Net-addon, but scrapped that idea

• FOURTH GENERATION. motherboard PU-8. Rev. C of GPU (GPU uses SGRAM now)

  • SCPH-5000 🇯🇵 - Japanese version, released on 22 June 1996
  • 3rd revision of SCPH-1001 🇺🇸 - Sony revised SCPH-1001 once again without changing the name. people refer it as SCPH-1001C
  • 3rd revision of SCPH-1002 🇬🇧 - same as above, people refering it as SCPH-1002C
  • SCPH-5003 🌏 - original Southeast Asian console. weirdly, the numeration follows SCPH-5000, but console features the SCPH-1001C's BIOS (in English). people assumed it did not exist, but it is mentioned in a manual for SCPH-103
  • SCPH-5903 🌏 - special Southeast Asian console with Video CD support. that version has separated japan-based BIOS
  • DTL-H1200 🇯🇵 - Japanese green-colored debugger
  • DTL-H1201 🇺🇸 - North American green-colored debugger
  • DTL-H1202 🇬🇧 - European green-colored debugger
  • DTL-H3000 🇯🇵 - Japanese black-colored Net Yaroze
  • DTL-H3001 🇺🇸 - North American black-colored Net Yaroze
  • DTL-H3002 🇬🇧 - European black-colored Net Yaroze

• FIFTH GENERATION. motherboard PU-18. relocation and improvements in CD-ROM drive. A/V direct out and RFU power connector removed. motherboard PCB reduced in size

  • SCPH-5500 🇯🇵 - Japanese version, released on 15 November 1996
  • SCPH-5001 / SCPH-5501 🇺🇸 - North American SCPH-5500. they differ in supplies: SCPH-5001 has one controller, SCPH-5501 has two controllers and a memory card. for long time people thought that SCPH-5001 does not exist, but is mentioned in a manual to SCPH-101 (alongside SCPH-5501)
  • SCPH-5502 / SCPH-5552 🇬🇧 - European SCPH-5500. same as above, differ in supplies. there is a false information that SCPH-5502 is a regular European console and SCPH-5552 is a rare promo-console for "Men in Black" movie. while it is true that "Men in Black"-based console PlayStation indeed was released - there also were the regular gray-colored versions of SCPH-5552
  • SCPH-5503 🌏 - Southeast Asian SCPH-5500
  • SCPH-5002 ❗ - DOES NOT EXIST. it seems weird at first glance, because SCPH-5000 (Japanese fourth generation), SCPH-5001 (American fifth generation), SCPH-5003 (Southeast Asian fourth generation) do all exist, but not SCPH-5002, but it is fact. blame Sony for the confusing numeration. even if it would have existed it would be a third(!) European counterpart in fifth generation (together with SCPH-5502 and SCPH-5552) which is too much

• SIXTH GENERATION. motherboard PU-20. DualShock & Sound Scope support. different video encoder. CD circuits simplified. memory changed from 4 chips to 1

  • SCPH-7000 🇯🇵 - Japanese version, released on 13 November 1997
  • SCPH-7001 🇺🇸 - North American SCPH-7000
  • SCPH-7002 🇬🇧 - European SCPH-7000
  • SCPH-7003 🌏 - Southeast Asian SCPH-7000. oddly, but is has down-leveled BIOS against SCPH-7000 (3.0 instead of 4.0)
  • SCPH-7000W 🇯🇵 - the special Japanese blue-colored console, released to celebrate of 10 millionth sold unit. obviously, based on SCPH-7000, but has English BIOS and no regional lockup. known as "Midnight Blue"

• SEVENTH GENERATION. motherboard PU-22. reductions in electronics and hardware

  • SCPH-7500 🇯🇵 - Japanese version, released on 01 December 1998
  • SCPH-7501 🇺🇸 - North American SCPH-7500
  • SCPH-7502 🇬🇧 - European SCPH-7500
  • SCPH-7503 🌏 - Southeast Asian SCPH-7500. compare to SCPH-7003 it now has a modern BIOS
  • SCPH-9903 🇺🇸 - weird console released in North America. it is basically the SCPH-7501, but where an original console can operate on 120V only, the SCPH-9903 can handle 240V. sticker on the back says console was released in May 1999, but it still qualifies as seventh generation because of hardware

• EIGHTH GENERATION. motherboard PU-23. more motherboard reductions. removal of parallel I/O port

  • SCPH-9000 🇯🇵 - Japanese version, released on 28 May 1999
  • SCPH-9001 🇺🇸 - North American SCPH-9000
  • SCPH-9002 🇬🇧 - European SCPH-9000
  • SCPH-9003 🌏 - Southeast Asian SCPH-9000

• NINTH GENERATION (aka PSone). motherboard PM-41. the size of console was dramatically reduced. removal of serial port

  • SCPH-100 🇯🇵 - Japanese version, released on 07 July 2000
  • SCPH-101 🇺🇸 - North American SCPH-100, released on 19 September 2000
  • SCPH-102 🇬🇧 - European SCPH-100, released on 29 September 2000
  • 2nd revision of SCPH-101 🇺🇸 - Sony released the revised version of console without naming it differently - no hardware difference, just revamped BIOS
  • 2nd revision of SCPH-102 🇬🇧 - same as above
  • SCPH-103 🌏 - Southeast Asian SCPH-100. sources says it has better BIOS (4.6) than American analogue (4.4 / 4.5) - it is false, its BIOS matches 2nd revision of SCPH-102
  • SCPH-102A / SCPH-102B / SCPH-102C ❗ - people believe that there are three different versions of SCPH-102 differ on their hardware or BIOS. in fact all those versions differ in packages and supplies only: SCPH-102A has AV cable & AC adapter, SCPH-102B has RFU adapter & AC adapter, SCPH-102C has AV cable, AC adapter and Euro-Scart-adapter. Also manuals for SCPH-102A/SCPH-102B are English only, while SCPH-102C is present in six European languages

BIOS Guide (short)

BIOS date	redump.org name	consoles	CRC	MD5
1994-01-24 ❓	ps-11 (notPreserved)	DTL-H2000	18d0f7d8	2118230527a9f51bd9216e32fa912842
1994-09-22 🇯🇵	ps-10j	SCPH-1000, DTL-H1000	3b601fc8	239665b1a3dade1b5a52c06338011044
1995-01-22 🇯🇵	ps-11j	SCPH-3000, DTL-H1000H	3539def6	849515939161e62f6b866f6853006780
1995-05-07 🇺🇸	ps-20a	SCPH-1001, DTL-H1001, DTL-H1001H	55847d8c	dc2b9bf8da62ec93e868cfd29f0d067d
1995-05-10 🇬🇧	ps-20e	SCPH-1002, DTL-H1002	9bb87c4b	54847e693405ffeb0359c6287434cbef
1995-07-17 🇺🇸	ps-21a	SCPH-1001, DTL-H1101	aff00f2f	da27e8b6dab242d8f91a9b25d80c63b8
1995-07-17 🇬🇧	ps-21e	SCPH-1002, DTL-H1102	86c30531	417b34706319da7cf001e76e40136c23
1995-07-17 🇯🇵	ps-21j	SCPH-3500	bc190209	cba733ceeff5aef5c32254f1d617fa62
1995-12-04 🇺🇸	ps-22a	SCPH-1001, SCPH-5003, DTL-H1201, DTL-H3001	37157331	924e392ed05558ffdb115408c263dccf
1995-12-04 🇬🇧	ps-22e	SCPH-1002, DTL-H1202, DTL-H3002	1e26792f	e2110b8a2b97a8e0b857a45d32f7e187
1996-03-06 🇯🇵	ps-22d	DTL-H1100	decb22f5	ca5cfc321f916756e3f0effbfaeba13b
1995-12-04 🇯🇵	ps-22j	SCPH-5000, DTL-H1200, DTL-H3000	24fc7e17	57a06303dfa9cf9351222dfcbb4a29d9
1995-12-04 🇯🇵	ps-22j(v)	SCPH-5903	446ec5b2	81328b966e6dcf7ea1e32e55e1c104bb
1996-11-18 🇺🇸	ps-30a	SCPH-5001, SCPH-5501, SCPH-5503, SCPH-7003	8d8cb7e4	490f666e1afb15b7362b406ed1cea246
1997-01-06 🇬🇧	ps-30e	SCPH-5502, SCPH-5552	d786f0b9	32736f17079d0b2b7024407c39bd3050
1996-09-09 🇯🇵	ps-30j	SCPH-5500	ff3eeb8c	8dd7d5296a650fac7319bce665a6a53c
1997-08-18 🇯🇵	ps-40j	SCPH-7000, SCPH-7500, SCPH-9000	ec541cd0	8e4c14f567745eff2f0408c8129f72a6
1997-11-14 🇺🇸	ps-41a(w)	SCPH-7000W	b7c43dad	b84be139db3ee6cbd075630aa20a6553
1997-12-16 🇺🇸	ps-41a	SCPH-7001, SCPH-7501, SCPH-7503, SCPH-9001, SCPH-9003, SCPH-9903	502224b6	1e68c231d0896b7eadcad1d7d8e76129
1997-12-16 🇬🇧	ps-41e	SCPH-7002, SCPH-7502, SCPH-9002	318178bf	b9d9a0286c33dc6b7237bb13cd46fdee
2000-03-11 🇯🇵	psone-43j	SCPH-100	f2af798b	8abc1b549a4a80954addc48ef02c4521
2000-03-24 🇺🇸	psone-44a	SCPH-101	6a0e22a0	9a09ab7e49b422c007e6d54d7c49b965
2000-03-24 🇬🇧	psone-44e	SCPH-102	0bad7ea9	b10f5e0e3d9eb60e5159690680b1e774
2000-05-25 🇺🇸	psone-45a	SCPH-101, SCPH-103	171bdcec	6e3735ff4c7dc899ee98981385f6f3d0
2000-05-25 🇬🇧	psone-45e	SCPH-102	76b880e5	de93caec13d1a141a40a79f5c86168d6
2000-10-27 ❓	ps2-50j (notPreserved)	SCPH-18000	0dcce9d7	d8f485717a5237285e4d7c5f881b7f32

BIOS Guide (long)

(legend): console names - version, date | redump.org name | CEX code | CRC , MD5

• FIRST GENERATION. motherboard PU-7

  • SCPH-1000 🇯🇵 - v10, 1994-09-22 | ps-10j | CEX-1000 KT-3 by S.O. | 3b601fc8 , 239665b1a3dade1b5a52c06338011044
  • DTL-H1000 🇯🇵 - v10, 1994-09-22 | ps-10j | CEX-1000 KT-3 by S.O. | 3b601fc8 , 239665b1a3dade1b5a52c06338011044
  • DTL-H1001 🇺🇸 - v20, 1995-05-07 | ps-20a | CEX-1000 KT-3 by S.O. | 55847d8c , dc2b9bf8da62ec93e868cfd29f0d067d
  • DTL-H1002 🇬🇧 - v20, 1995-05-10 | ps-20e | CEX-1000 KT-3 by S.O. | 9bb87c4b , 54847e693405ffeb0359c6287434cbef
  • DTL-H1000H 🇯🇵 - v11, 1995-01-22 | ps-11j | CEX-1000 KT-3 by S.O. | 3539def6 , 849515939161e62f6b866f6853006780
  • DTL-H1001H 🇺🇸 - v20, 1995-05-07 | ps-20a | CEX-1000 KT-3 by S.O. | 55847d8c , dc2b9bf8da62ec93e868cfd29f0d067d

• SECOND GENERATION. motherboard PU-8

  • SCPH-3000 🇯🇵 - v11, 1995-01-22 | ps-11j | CEX-1000 KT-3 by S.O. | 3539def6 , 849515939161e62f6b866f6853006780
  • SCPH-1001 🇺🇸 - v20, 1995-05-07 | ps-20a | CEX-1000 KT-3 by S.O. | 55847d8c , dc2b9bf8da62ec93e868cfd29f0d067d
  • SCPH-1002 🇬🇧 - v20, 1995-05-10 | ps-20e | CEX-1000 KT-3 by S.O. | 9bb87c4b , 54847e693405ffeb0359c6287434cbef

• THIRD GENERATION. motherboard PU-8

  • SCPH-3500 🇯🇵 - v21, 1995-07-17 | ps-21j | CEX-3000 KT-3 by K.S. | bc190209 , cba733ceeff5aef5c32254f1d617fa62
  • 2nd revision of SCPH-1001 🇺🇸 - v21, 1995-07-17 | ps-21a | CEX-3000 KT-3 by K.S. | aff00f2f , da27e8b6dab242d8f91a9b25d80c63b8
  • 2nd revision of SCPH-1002 🇬🇧 - v21, 1995-07-17 | ps-21e | CEX-3000 KT-3 by K.S. | 86c30531 , 417b34706319da7cf001e76e40136c23
  • DTL-H1100 🇯🇵 - v22, 1996-03-06 | ps-22d | CEX-3000-1001-1002 by K.S. | decb22f5 , ca5cfc321f916756e3f0effbfaeba13b
  • DTL-H1101 🇺🇸 - v21, 1995-07-17 | ps-21a | CEX-3000 KT-3 by K.S. | aff00f2f , da27e8b6dab242d8f91a9b25d80c63b8
  • DTL-H1102 🇬🇧 - v21, 1995-07-17 | ps-21e | CEX-3000 KT-3 by K.S. | 86c30531 , 417b34706319da7cf001e76e40136c23

• FOURTH GENERATION. motherboard PU-8

  • SCPH-5000 🇯🇵 - v22, 1995-12-04 | ps-22j | CEX-3000-1001-1002 by K.S. | 24fc7e17 , 57a06303dfa9cf9351222dfcbb4a29d9
  • 3rd revision of SCPH-1001 🇺🇸 - v22, 1995-12-04 | ps-22a | CEX-3000-1001-1002 by K.S. | 37157331 , 924e392ed05558ffdb115408c263dccf
  • 3rd revision of SCPH-1002 🇬🇧 - v22, 1995-12-04 | ps-22e | CEX-3000-1001-1002 by K.S. | 1e26792f , e2110b8a2b97a8e0b857a45d32f7e187
  • SCPH-5003 🌏 - v22, 1995-12-04 | ps-22a | CEX-3000-1001-1002 by K.S. | 37157331 , 924e392ed05558ffdb115408c263dccf
  • SCPH-5903 🌏 - v22, 1995-12-04 | ps-22j(v) | CEX-3000-1001-1002 by K.S. | 446ec5b2 , 81328b966e6dcf7ea1e32e55e1c104bb
  • DTL-H1200 🇯🇵 - v22, 1995-12-04 | ps-22j | CEX-3000-1001-1002 by K.S. | 24fc7e17 , 57a06303dfa9cf9351222dfcbb4a29d9
  • DTL-H1201 🇺🇸 - v22, 1995-12-04 | ps-22a | CEX-3000-1001-1002 by K.S. | 37157331 , 924e392ed05558ffdb115408c263dccf
  • DTL-H1202 🇬🇧 - v22, 1995-12-04 | ps-22e | CEX-3000-1001-1002 by K.S. | 1e26792f , e2110b8a2b97a8e0b857a45d32f7e187
  • DTL-H3000 🇯🇵 - v22, 1995-12-04 | ps-22j | CEX-3000-1001-1002 by K.S. | 24fc7e17 , 57a06303dfa9cf9351222dfcbb4a29d9
  • DTL-H3001 🇺🇸 - v22, 1995-12-04 | ps-22a | CEX-3000-1001-1002 by K.S. | 37157331 , 924e392ed05558ffdb115408c263dccf
  • DTL-H3002 🇬🇧 - v22, 1995-12-04 | ps-22e | CEX-3000-1001-1002 by K.S. | 1e26792f , e2110b8a2b97a8e0b857a45d32f7e187

• FIFTH GENERATION. motherboard PU-18

  • SCPH-5500 🇯🇵 - v30, 1996-09-09 | ps-30j | CEX-3000-1001-1002 by K.S. | ff3eeb8c , 8dd7d5296a650fac7319bce665a6a53c
  • SCPH-5001 / SCPH-5501 🇺🇸 - v30, 1996-11-18 | ps-30a | CEX-3000-1001-1002 by K.S. | 8d8cb7e4 , 490f666e1afb15b7362b406ed1cea246
  • SCPH-5502 / SCPH-5552 🇬🇧 - v30, 1997-01-06 | ps-30e | CEX-3000-1001-1002 by K.S. | d786f0b9 , 32736f17079d0b2b7024407c39bd3050
  • SCPH-5503 🌏 - v30, 1996-11-18 | ps-30a | CEX-3000-1001-1002 by K.S. | 8d8cb7e4 , 490f666e1afb15b7362b406ed1cea246

• SIXTH GENERATION. motherboard PU-20

  • SCPH-7000 🇯🇵 - v40, 1997-08-18 | ps-40j | CEX-7000-7001 by K.S. | ec541cd0 , 8e4c14f567745eff2f0408c8129f72a6
  • SCPH-7001 🇺🇸 - v41, 1997-12-16 | ps-41a | CEX-3000-1001-1002 by K.S. | 502224b6 , 1e68c231d0896b7eadcad1d7d8e76129
  • SCPH-7002 🇬🇧 - v41, 1997-12-16 | ps-41e | CEX-3000-1001-1002 by K.S. | 318178bf , b9d9a0286c33dc6b7237bb13cd46fdee
  • SCPH-7003 🌏 - v30, 1996-11-18 | ps-30a | CEX-3000-1001-1002 by K.S. | 8d8cb7e4 , 490f666e1afb15b7362b406ed1cea246
  • SCPH-7000W 🇯🇵 - v41, 1997-11-14 | ps-41a(w) | CEX-3000-1001-1002 by K.S. | b7c43dad , b84be139db3ee6cbd075630aa20a6553

• SEVENTH GENERATION. motherboard PU-22

  • SCPH-7500 🇯🇵 - v40, 1997-08-18 | ps-40j | CEX-7000-7001 by K.S. | ec541cd0 , 8e4c14f567745eff2f0408c8129f72a6
  • SCPH-7501 🇺🇸 - v41, 1997-12-16 | ps-41a | CEX-3000-1001-1002 by K.S. | 502224b6 , 1e68c231d0896b7eadcad1d7d8e76129
  • SCPH-7502 🇬🇧 - v41, 1997-12-16 | ps-41e | CEX-3000-1001-1002 by K.S. | 318178bf , b9d9a0286c33dc6b7237bb13cd46fdee
  • SCPH-7503 🌏 - v41, 1997-12-16 | ps-41a | CEX-3000-1001-1002 by K.S. | 502224b6 , 1e68c231d0896b7eadcad1d7d8e76129
  • SCPH-9903 🇺🇸 - v41, 1997-12-16 | ps-41a | CEX-3000-1001-1002 by K.S. | 502224b6 , 1e68c231d0896b7eadcad1d7d8e76129

• EIGHTH GENERATION. motherboard PU-23

  • SCPH-9000 🇯🇵 - v40, 1997-08-18 | ps-40j | CEX-7000-7001 by K.S. | ec541cd0 , 8e4c14f567745eff2f0408c8129f72a6
  • SCPH-9001 🇺🇸 - v41, 1997-12-16 | ps-41a | CEX-3000-1001-1002 by K.S. | 502224b6 , 1e68c231d0896b7eadcad1d7d8e76129
  • SCPH-9002 🇬🇧 - v41, 1997-12-16 | ps-41e | CEX-3000-1001-1002 by K.S. | 318178bf , b9d9a0286c33dc6b7237bb13cd46fdee
  • SCPH-9003 🌏 - v41, 1997-12-16 | ps-41a | CEX-3000-1001-1002 by K.S. | 502224b6 , 1e68c231d0896b7eadcad1d7d8e76129

• NINTH GENERATION (aka PSone)

  • SCPH-100 🇯🇵 - v43, 2000-03-11 | psone-43j | CEX-3000-1001-1002 by K.S. | f2af798b , 8abc1b549a4a80954addc48ef02c4521
  • SCPH-101 🇺🇸 - v44, 2000-03-24 | psone-44a | CEX-3000-1001-1002 by K.S. | 6a0e22a0 , 9a09ab7e49b422c007e6d54d7c49b965
  • SCPH-102 🇬🇧 - v44, 2000-03-24 | psone-44e | CEX-3000-1001-1002 by K.S. | 0bad7ea9 , b10f5e0e3d9eb60e5159690680b1e774
  • 2nd revision of SCPH-101 🇺🇸 - v45, 2000-05-25 | psone-45a | CEX-3000-1001-1002 by K.S. | 171bdcec , 6e3735ff4c7dc899ee98981385f6f3d0
  • 2nd revision of SCPH-102 🇬🇧 - v45, 2000-05-25 | psone-45e | CEX-3000-1001-1002 by K.S. | 76b880e5 , de93caec13d1a141a40a79f5c86168d6
  • SCPH-103 🌏 - v45, 2000-05-25 | psone-45a | CEX-3000-1001-1002 by K.S. | 171bdcec , 6e3735ff4c7dc899ee98981385f6f3d0

• SPECIAL

  • DTL-H2000 - v11, 1994-01-24 | not preserved | %no CEX code% | 18d0f7d8 , 2118230527a9f51bd9216e32fa912842
    • DTL-H2000 is a developer board for PC not a separate console, but it still has a BIOS. as for 2018-OCT-30, redump.org didn't preserve it
  • Playstation 2 - v50, 2000-10-27 | not preserved | PS compatible mode by M.T | 0dcce9d7 , d8f485717a5237285e4d7c5f881b7f32
    • Playstation 2 has a PSX emulation mode for backward compatibility and so it has a separate BIOS to run PSX games. as for 2018-OCT-30, redump.org didn't preserve it

Bad BIOS dumps

BIOS date	redump.org name	consoles	CRC	MD5
1995-05-07 🚫	ps-20a	SCPH-1001, DTL-H1001	75660aac	59071590099d21dd439896592338bf95
1995-12-04 🚫	ps-22j	SCPH-5000, DTL-H1200, DTL-H3000	826ac185	1eefa9775e3ac04000a4f81c922d96dc
1995-12-04 🚫	ps-22j	SCPH-5000, DTL-H1200, DTL-H3000	8c93a399	eb201d2d98251a598af467d4347bb62f
1997-01-06 🚫	ps-30e	SCPH-5502, SCPH-5552	4d9e7c86	e56ec1b027e2fe8a49217d9678f7f6bb

Changelog

• 2023-07-05: Salvaged original content by Tim Zaplatov. Rearranged sections and corrected minor errors. Otherwise, original data untouched save for irretrievable content.
• 2018-10-30: Last known commit by Tim Zaplatov.