8580 Type 2 Planar
20 MHz, -081, 1xx & 3xx Models

rf7080a.exe Model 70/80 Reference Disk v1.12 (zipped image)

187-052 IBM Personal System/2 Model 80 (8580-111)
187-150 IBM Personal System/2 Model 80 (8580-311)
190-054 IBM Personal System/2 Model 80 (8580-121, -321)
190-177 IBM Personal System/2 Model 80 (8580-081, 161 AND A16)

Planar Memory
Power Supply

Specifications
Type 2 Planar
System Firmware
   ROM Images


Specifications

Configurations

-081 - 386-20, 2 MB RAM
-111 - 386-20, 2 MB RAM, 115 MB hardfile, 1.44 MB
-121 - 386-20, 2 MB RAM, 120 MB SCSI hardfile, 1.44 MB
-161 - 386-20, 2 MB RAM
-321 - 386-20, 2 MB RAM, 320 MB SCSI hardfile, 1.44 MB

Memory Sizes

System Board 20 MHz 10G4148, 92F0756 (8580-081, 111, 121, 161, 311, 321)
2 MB 80 ns Memory Kit 92F0669 or 6450379

A list of 2 MB numbers:
92F9391, 90X8993, 90X7391, 6450372, 6450379, 90X9391, 15F6825, 92F0664 (?)


Type 2 Planar 20 MHz, FRU P/N 33F8506 / 92F0756 / 92F0767 [P] [P] [P] (schematics)

CR3 LM340T5 7805 5V reg. (incl. SCP)
E3 jumper ?
J1,2,4 32-bit MCA slot
J3,5,7,8 16-bit MCA slot
J6 16-bit MCA slot w/ AVE
J9 HDD-15 Video connector
J10 DB25 Serial port
J11 Parallel port
J12 Mouse port
J13 Keyboard port
J14 Power supply connector
J15,16 Memory expansion connectors
J17 Floppy connector
J18 Battery/Speaker connector
U1 Inmos IMSG171P-35 RAMDAC
U20 1.8432 MHz osc (UART)
U43 NS16550AFV UART
U87 72X8287 VGA
U110 40.0 MHz osc (CPU)
U116,117,136,137,149,150,174,175
   TMS 4464FML-12 64Kx4 DRAM (video)
U120 72X7377 DMA controller
U122 P8042AH 90X9052 Keyboard controller
U131 intel 386DX-20 CPU
U134 72X8299 IO controller
U148 NEC µPD72065L Floppy controller
U153 14.31818 MHz osc (slots, IO)
U155 28.322 MHz osc (VGA)
U156 25.175 MHz osc (VGA)
U157 15F6637 ROM BIOS Even
U158 15F6639 ROM BIOS Odd
U159 32.0 MHz osc (FPU)
U161 387DX Math Co-pro socket
U184 LM386 Audio Op-Amp? (PC Speaker)
U186 Motorola MC146818A RTC
U188,189 SAB 8259A-N PIC (cascade)
Y1 32.768 kHz xtal (RTC)
? 2x21 solder pads


System Firmware (POST & BIOS)

Firmware stored in EPROM.

ROM Images

15F6597 / 15F6600 - 07 Oct 1987, rev. 0, 2x 27C512 (U157 / U158)
15F6637 / 15F6639 - same parameters and contents as above

Content created and/or collected by:
Louis Ohland, Peter Wendt, William Walsh, David Beem, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 23 Oct 2021 - Changes & Credits | Legal Info & Contact