IBM Personal System/2 Model 80 386 (8580-A31)
| Type | 8580-A31 |
| Serial | 55-FMNC4 |
| Manufacturer | IBM United Kingdom Ltd. |
| FCC ID | AN08580 |
| Date | October 1991 |
Physical description
| Type | Floor-standing (print on disk tray 23 OCT 1991) |
| Dimensions (HxWxD) | 597 x 166 (318 incl. feet) x 483 mm |
| Weight | 23.6 Kg (8580-041) |
| Drive bays | 2 x 3.5" half-height, 2 x 5.25" full height (1 internal) |
| Power supply | 242 W 110-220VAC auto sense, auto-restart (DAT.: 9144) |
Main board
| Manufacturer | IBM (9143 on chips), planar id FFF9 |
| BIOS | IBM, Feb. 15, 1990 (128 Kb, sticker 28/10/91) |
| Processor | Intel 80386-25 MHz (32-bit) PGA |
| Coprocessor | Intel 80387-25 MHz, PGA ADDITION |
| Cache | 64 Kb |
| Cache controller | Intel 82385 |
| Memory | 2 sockets for 80ns DRAM cards, parity checked (PS/2 8580 proprietary type) |
| Max on system board | 8 Mb (2 x 4 Mb) |
| Max. using adapter cards | 16 Mb |
| Bus | Micro Channel (MCA) 16/32-bit |
| Expansion slots | 4 x 32-bit and 4 x 16-bit (2 w. video ext.), 7 available |
| Interface | FDD (3.5", 720 Kb or 1.44 Mb) |
| Video | Integrated 16-bit VGA display adapter (256 Kb, max. 320x200, 256 colours or 640x480, 16 colours) |
| Ports | PS/2 keyboard, PS/2 mouse, serial (UART 16550A), parallel, VGA |
Cards
| Installed RAM | 2 x 4 Mb, 80ns on planar (9127 and 9128 on connector), see below for memory card |
| Controller | IBM PS/2 32-bit SCSI adapter (id 8EFE, stickers 8/8/91) |
| Memory | IBM 32-bit 2-8 Mb 80386 memory expansion option (id FCFF, chips 9133) w. 4 x 2 Mb 80ns RAM SIMMs (68X6127, und.) ADDITION |
| Video | IBM 32-bit XGA-2 display adapter (id FFDA, 9308 on chips) ADDITION |
Storage
| Diskette drive | 1.44 Mb, 3.5" half -height (Mitsubishi MF355C, AUG 1991) |
| 2nd Diskette drive | 1.44 Mb, 3.5" half -height (Mitsubishi MF355C, AUG 1991) ADDITION |
| Hard disk | Type 0661-371 (320 Mb) SCSI, 3.5" half-height (9014 on chips) REPLACEMENT |
| 2nd Hard disk | Model DSAS-3360 (360 Mb) SCSI, 3.5" slim (9419 on chips) ADDITION |
Trivia
| Acquisition | Summer 2000, paid a few $, was in a deposid of dismissed appliances |
| Condition | Good, working (setup needed because of missing cards) |
| Installed O.S. | OS/2 1.3? (it didn't boot) |
| Modifications | Removed token-ring adapter, added 2nd hard drive, 2nd diskette drive, XGA-2 display adapter and two 2 Mb SIMMs |
| Current status | All hw working |
| Current O.S. | None |
| Spare parts | Almost everything, incl. drives, planar, etc. |
Peripherals: KEYBOARDS, MONITORS, MICES, PRINTERS
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This page was first
published on the web on Nov. 11, 2001 |