IBM Personal System/2 Model 80 386 (8580-A21)
| Type | 8580-A21 |
| Serial | 55-ADZF4 |
| Manufacturer | IBM United Kingdom Ltd. |
| FCC ID | ANO9SA8580-111 |
| Date | September 1990 |
Physical description
| Type | Floor-standing (print inside side panel 26 4 90, 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 | 242 W 110-220VAC auto sense, auto-restart (WK. 36/90) |
Main board
| BIOS | IBM, Nov. 21, 1989 (128 Kb, chips 25/4/90), planar id FFF9 |
| 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) 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 33F5498 modules on planar (9020 and 9024 on chips), see below for memory card |
| Controller | IBM PS/2 32-bit SCSI adapter (id 8EFE, stickers 9/8/90) |
| Memory | IBM 32-bit 2-8 Mb 80386 expansion option (id FCFF, chip 9031) w. 4 x 2 Mb 85ns RAM SIMMs (65X6249, one 2190, two 28-90) ADDITION |
Storage
| Diskette drive | 1.44 Mb, 3.5" half -height (Alps DFP723, 90-29) |
| 2nd Diskette drive | 1.44 Mb, 3.5" half -height (Alps DFP723, 90-29) ADDITION? |
| Hard disk | Type WDS-3158 (120 Mb) SCSI, 3.5" half-height |
| 2nd Hard disk | Type WDS-3158 (120 Mb) SCSI, 3.5" half-height ADDITION |
Trivia
| Acquisition | Sept. 99, paid a few $ together w. some other appliances, incl. a similar 8580-A16 which was in poor condition and had been demolished |
| Condition | Very good, working, setup needed because of missing cards |
| Installed O.S. | IBM OS/2 2.1 (Italian), hardly booting |
| Repairs/modifications | Removed token-ring adapter, added two 2 Mb SIMMs to memory card (it had 2 x 2 Mb only), and 2nd hard drive (taken from mentioned 8580-A16 unit) |
| Current status | All hw working, power supply is slightly rusty |
| Current | IBM PC-DOS 4.00 (US English) |
| 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 |