IBM Personal System/2 Model 80 386 (8580-X21)
| Type | 8580-X21 |
| Serial | 55-NAH59 |
| Manufacturer | IBM U.K. Ltd. |
| FCC ID | AN09SA8580-111 |
| Date | November 1989 |
Physical description
| Type | Floor-standing (print on disk tray 20 MAR 1991, print on rev of front panel 260990) |
| 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 | 225 W 110-220VAC auto sense, auto-restart (WK. 47/89) |
Main board
| Manufacturer | IBM (many chips have 8942), planar id FEFF |
| BIOS | IBM, Oct. 7, 1987 (128 Kb, chips 1990) REPLACEMENT? |
| Processor | Intel 80386-20 MHz (32-bit), PGA |
| Coprocessor | Intel 80387-20 MHz, PGA ADDITION |
| Memory | 2 sockets for 85ns DRAM cards, parity checked (PS/2 8580 proprietary type) |
| Max on system board | 4 Mb (2 x 2 Mb) |
| Max. using adapter cards | 16 Mb |
| Bus | Micro Channel (MCA) 16/32-bit |
| Expansion slots | 3 x 32-bit and 5 x 16-bit (1 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 2 Mb 85ns on planar (8949 and 9005 on connector), see below for memory card |
| Controller | IBM PS/2 32-bit SCSI Adapter (id 8EFE, 4589 on card, power cables 31/89) |
| Memory | IBM 32-bit 2-8 Mb 80386 memory expansion adapter (id FCFF, chips 9020) w. 4 x 2 Mb 85ns RAM SIMMs (68X6127) ADDITION |
| Video | IBM 8514 display adapter/A (id EF7F, print 8906) ADDITION |
Storage
| Diskette drive | 1.44 Mb, 3.5" half-height (Alps DFP723, 92-18) REPLACEMENT |
| Hard disk | Type WDS-3158 (120 Mb) SCSI, 3.5" half-height |
| 2nd Hard disk | Type WDS-380 (80 Mb) SCSI, 3.5" slim (chip 8948) ADDITION |
Trivia
| Acquisition | Summer '98, paid a few $ together w. other appliances, incl. a similar non-functioning 8580-M81 unit which was demolished |
| Condition | Very good (setup needed) |
| Installed O.S. | IBM OS/2 2.0 (Italian) |
| Modifications | Removed token-ring adapter, added 2nd hard drive (taken from mentioned 8580-M81) |
| Current status | All hw working, external of power supply is somewhat rusty |
| 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 |