Motherboards

From PS1 Developer wiki
Jump to navigation Jump to search

Overview

This list might not be complete, so feel free to add your own board if you own one that is not in this list.

PlayStation motherboards

PU-7

  • Year(s): 1994 - 1995
  • Models: SCPH-1000, early SCPH-1001, very early SCPH-3000/SCPH-3500, probably few very early SCPH-1002
  • Has three potentiometers on board: RV701 (focus gain), RV704 (focus bias), RV705 (sled motor voltage?)
  • 7-pin PSU
  • -13
    • initial release
  • -13A
  • -14
  • -14A
  • -15

PU-8

<imgur w="240">l0g4NDE.jpg</imgur> <imgur w="240">2YjVOKt.jpg</imgur>

  • Year(s): 1995 - 1996
  • Models: SCPH-1001, SCPH-1002, SCPH-3000, SCPH-3500, SCPH-5000
  • Removed S-Video interface
  • Has three potentiometers on board: RV701 (focus gain), RV702 (push pull), RV704 (focus bias)
  • 7-pin PSU
  • -11
    • Mostly based on PU-7-15 with slight changes regarding the drive electronics
  • -21
    • Actual larger changes
    • GPU now uses SGRAM for video memory
  • -22
  • -23

PU-16

  • Year(s):
  • Models: SCPH-5903
  • Only sold in Asia (without Japan)
  • Special version with daughter board for VideoCD decoding (MP-45)
  • Mostly based on PU-8-23
  • Has three potentiometers on board: RV701 (focus gain), RV702 (push pull), RV704 (focus bias)
  • 7-pin PSU
  • -11

PU-18

  • Year(s): 1996 - 1997
  • Models: SCPH-5001, SCPH-550X, SCPH-5552, early SCPH-700X, early SCPH-7501
  • Removed all audio/video connectors except the multi-A/V port
  • New drive DSP (CXD2545Q)
  • Automated focus adjustment
  • Has single potentiometer on board: RV703 (push-pull adjustment)
  • 5-pin PSU
  • -11
  • -21
  • -31
  • -41
  • -52
  • -62
  • -72
  • -82

PU-20

  • Year(s): 1997 - 1998
  • Models: SCPH-700X
  • Drive DSP and drive controller combined into single chip
  • Automated focus adjustment
  • Has single potentiometer on board: RV703 (push-pull adjustment)
  • 5-pin PSU
  • -12
  • -22
  • -32

PU-22

  • Year(s): 1998 - 1999
  • Models: SCPH-750X, early SCPH-900X (parallel port hidden behind case)
  • SPU integrated into drive-dsp/controller chup
  • Automated full CD drive adjustment
  • Has no potentiometers on board (values set automatically by drive electronics)
  • 5-pin PSU
  • -11
  • -12
  • -21
  • -22
  • -32

PU-23

  • Year(s): 1999 - 2000
  • Models: SCPH-900X
  • Removed the parallel port
  • Automated full CD drive adjustment
  • Has no potentiometers on board (values set automatically by drive electronics)
  • 5-pin PSU
  • -11
  • -21
  • -31
  • -41
  • -51

PlayStation One motherboards

PM-41

<imgur w="240">NDpavzB.jpg</imgur> <imgur w="240">WjcJgEn.jpg</imgur>

  • Year(s): 2000 - 2006
  • Models: SCPH-10X
  • Removed the serial port
  • Automated full CD drive adjustment
  • Has no potentiometers on board (values set automatically by drive electronics)
  • -11
  • -21
  • -31
  • -41
  • -51
  • -61
    • SGRAM integrated into single chip with GPU
  • -71
    • Also known as PM-41 (2)
    • Slightly smaller
    • Audio-RAM integrated into CD/SPU-chip
  • -82
    • Also known as PM-41 (2)
    • Slightly smaller
    • Different package/footprint for RAM
    • The very last PS1 motherboard, built around 2003-2004 (at least) and sold until 2006