Playstation BIOS Number Information

Ever wonder why there are so many different Playstation BIOS's available? Check out this list below:

BIOS Legend

Model	Board #	Description
PSone		SCPH 100 - 101 - 102
Playstation	Board PU7	SCPH 1000, 1001, 1002
Playstation	Board PU8	SCPH 1000, 1001, 1002
Playstation	Board PU18	SCPH 5500, 5501, 5502, 5552
Playstation	Board PU20	SCPH 7000, 7001, 7002, 7003
Playstation	Board PU22	SCPH 7501, 7502
Playstation	Board PU23	SCPH 9001, 9003

Consumer Editions

BIOS #	Description
SCPH-1000	The original BIOS. Released in Japan on 12/3/94.
SCPH-1001	The original North American BIOS. Released in North America on 9/9/95. Did not feature S-Video output port like the 1000.
SCPH-1002	The original European BIOS. Had no S-Video like the 1001.
SCPH-3000	Japanese revision.
SCPH-3500	Japanese revision. No longer featured S-Video output port.
SCPH-5003	Asian revision.
SCPH-5500	Japanese revision. CD drive mech was relocated, onboard electronics shortened by ~20 percent, seperate ports for A/V composite output were replaced by the A/V Multi Out port.
SCPH-5501	North American version of the 5500.
SCPH-5502	European version of the 5500.
SCPH-5552	European revision.
SCPH-5903	Special white-colored "Video CD" edition of the PS, released only in greater Asia.
SCPH-7000	First Japanese 'Dual Shock' hardware revision. System now came with one Dual Shock (SCPH-1200) controller, and now featured a light show program called SoundScope in the CD player menu (this was actually a stripped-down version of Baby Universe).
SCPH-7001	North American 7000.
SCPH-7002	European 7000.
SCPH-7003	Asian 7000.
SCPH-7500	Japanese revision. More motherboard reductions, revised system BIOS. Sony released this as a "mod-proof" system, but was cracked pretty quickly (of course!).
SCPH-7501	North American 7500.
SCPH-7502	European 7500.
SCPH-7503	Updated Japanese 7500.
SCPH-9000	Japanese revision. More motherboard reductions, plus total removal of Parallel I/O port to try and foil those making cheat devices and other such products that fit into the port. Last PS hardware revision series until SCPH-100 redesign.
SCPH-9001	North American 9000.
SCPH-9002	European 9000.
SCPH-9003	Asian 9000.
SCPH-100	Also known as the PS one. Unit size reduced by one-third, power supplied by external AC adapter as opposed to internal power block. Revamped BIOS interface. Original Japanese version.
SCPH-101	North American 100.
SCPH-102	European 100.

Developer/Non-Consumer Editions:

BIOS #	Description
DTL-H1001	Original blue-colored PS, only available to developers and gaming publications. Featured 8MB of RAM. Has no regional lockouts, so users are able to play all North American and Japanese software without fault, as well as pre-production software on CD-R media.
DTL-H1201	Revision of the H1001.
DTL-H1001H	Grey version of DTL-H1001. Not much else known.
DTL-3000	Also known as the Net Yaroze. Enabled consumers to create their own PS software. Like the H1001, could play all manner of PS software.
DTL-H3000
DTL-H3001	This and the H3000 are odd, seemingly consumer versions of the Net Yaroze, save for no inclusion of development accessories. Both are a lighter black, however, and have a textured crystalized paint finish. Known as the "PlayStation Worldwide."
SCPH-2000	Another all-region PS. Nothing else known.