IBM Personal System/2 Model 80 386
More photographs of this machine here
| Type | 8580-071 |
| Serial | BR55-7597890 |
| Manufacturer | IBM U.K. Ltd. |
| FCC ID | AN09SA8580 |
| Date | February 1988 (see note below) |
Physical description
| Type | Floor-standing |
| 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. 50/89) REPLACEMENT |
Main board
| BIOS | IBM, March 30, 1987 (128 Kb, planar id FEFF) |
| Processor | Intel 80386-16 MHz (32-bit), PGA |
| Coprocessor | Intel 80387-16 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 90X8670 cards on planar (see below for memory card) |
| Controller | IBM ESDI hard disk attachment (id DDFF 16-bit, mid-'89) REPLACEMENT |
| Memory | IBM 32-bit 2-8 Mb 80386 memory expansion adapter (id FCFF, 8810) w. 4 x 2 Mb 85ns SIMMs (65X6249, one 88-34, three 46-89) ADDITION |
| Video | IBM 8514 display adapter/A (id EF7F, 8808) ADDITION |
Storage
| Diskette drive | 1.44 Mb, 3.5" half -height (Sony MP-F77W, 1988 26) REPLACEMENT |
| Hard disk | Model 0667 (70 Mb) ESDI, 5.25" full-height |
| 2nd hard disk | Model 0667 (70 Mb) ESDI, 5.25" full-height ADDITION |
Trivia
| Acquisition | Mid-98, collected in a dump together w. other appliances (incl. another 8580-071) |
| Condition | Quite good, but not working |
| Installed O.S. | IBM DOS 3.30, MS Windows 3.1(Italian) |
| Repairs/modifications | Replaced floppy drive, ESDI controller & cables, power supply and battery (see notes below), added second hard drive and memory card with SIMMs |
| Current status | All hw working, hard disks chassis is somewhat rusty |
| Current O.S. | IBM PC-DOS 4.00 (US English) |
| Spare parts | Almost everything, incl. drives, planar, etc. |
Notes
This machine is my oldest PS/2 model 80. Older PS/2 machines can be easily noted because of the orange power switch (it was later replaced by a white switch) and because of the white model number/serial number label on the side of the power switch (in the contrary of the black labels used in later exs.).
In my experience, 16 MHz PS/2 models are rather vulnerable. I bought at least 4 or 5 different PS/2 80 16 MHz, and I found most of them were inoperative, usually because of a dead or faulty main board. I succedeed in building up this ex. which is, as a matter of fact, a "compilation" of pieces from different 8580-071 units: for instance all chips on the planar have date codes from 1987 or early 1988 at most, whileas there is a 20.10.89 print on side panel (planar is not a replacement, as it came to me together with the case, i.e. together with the s/n). The only functioning "orange switch" (see above) power supply also died after a couple of months of service, and I had to replace it with a younger spare part (white switch).
Peripherals: KEYBOARDS, MONITORS, MICES, PRINTERS
 Back to Systems
Listing Back to Personal
Main Page Back to Home
page |
This page was first
published on the web on Nov. 11, 2001 |