PM486-25 (486I) MOTHERBOARD LAYOUT

┌───────────────────────────╤══╤──────────────────────┐
│┌─┐┌─┐┌─┐J10┌─┐J12┌─┐J14   └─_┘      J4░░░░░░░_──────┼────25-pin Parallel
│J7│J8│J9││▓│J11│▓│J13│▓│  J1 │      J5░░░░░░_──┬─────┼────25-pin Serial
││▓││▓││▓││▓││▓││▓││▓││▓│   Keyboard  J6░░░░░░_─┘  J16│
││▓││▓││▓││▓││▓││▓││▓││▓│                           ░_┼────Front Panel
││▓││▓││▓││▓││▓││▓││▓││▓│                    ┬─┬┐   ░ │    Header
││▓││▓││▓││▓││▓││▓││▓││▓│                    │J15_─┐  │
││▓││▓││▓││▓││▓││▓││▓││▓│                    ├─┼┤  ├──┼────Power Supply
│├─┤├─┤└─┘├─┤├─┤├─┤├─┤├─┤   ┌──────┐         │J17_─┘  │    Headers
││▓││▓│   │▓││▓││▓││▓││▓│   │C P U │         ┴─┴┘     │
││▓││▓│   │▓││▓││▓││▓││▓│   │      │                ░ │
│└─┘└─┘   ├─┤├─┤├─┤├─┤└─┘   └──────┘             J22░_┼────Floppy Header
│ ┌──┐    │▓││▓││▓││▓│                              ░ │
E2│EPROM  │▓││▓││▓││▓│                              ░ │
│■│  │    │▓││▓││▓││▓│                                │
│·└──┘    │▓││▓││▓││▓│                                │
E4┌──┐    │▓││▓││▓││▓│                                │
E5│EPROM  │▓││▓││▓││▓│                              ░ │
│■│  │    └─┘└─┘└─┘└─┘   ░J24                       ░ │
│·└──┘                   ░_─┐   Front            J23░_┼─┬──Power Supply
E7 ┌──┐                     ├── Panel               ░ │ │  Headers
│  │  │CMOS              ░_─┘   Headers               │ │
│  │  │     ███          ▒J26                    J25░_┼─┘
│  └──┘     Clock        ▒                            │
└─────────────────────────────────────────────────────┘

Note

The PM486-25 motherboard uses 238 pin type 2 socket.

Sockets

No socket information is available on this system at this time.

Jumpers

* Indicates default settings.

EPROM Size	* E2-E3	256 Kb
	E3-E4	512 Kb
Password	E5-E6	Enabled
	* E6-E7	Disabled

Connectors

No connector information is available on this system.