MultiEra Labs - IBM PS/2 Model 77 486

Macintosh

Windows

Amiga

C64 / 8-Bit

Atari

DOS

G15Control

Labs

Deutsch | English

IBM PS/2 Model 77 486
	The IBM PS/2 Model 77 belongs to the professional PS/2 family and was announced in October 1992. It combines the 486 generation with IBM's 32-bit Micro Channel architecture, integrated SCSI and XGA-2 graphics, positioning it as a high-end business and workstation platform.

TECHNICAL DATA

Introduction	1992
Machine Type	9577
CPU	Intel 80486SX 33 MHz or 80486DX2 66 MHz
Bus	32-bit Micro Channel (MCA), 5 slots
RAM	8 MB standard, up to 32 MB on the system board
Graphics	XGA-2, 1 MB video memory
Storage	SCSI; typical models with 212 MB or 400 MB hard disks
Floppy	3.5-inch, 2.88 MB media-sense
Operating systems	IBM PC DOS 5.x and OS/2 2.x; classic Windows environments are also important for our tests

PERIOD CONFIGURATIONS

The original 9577 family was offered with configurations including 486SX/33 and 486DX2/66 processors with 8 MB RAM. IBM paired these systems with XGA-2, SCSI hard disks and 2.88 MB floppy drives.

Later Model 77i/77s families from 1994 could also offer DX4/100 processors, additional cache, IDE or SCSI and up to 64 MB RAM. Those later machines belong to the extended Model 77 family rather than the original 1992 configuration.

TYPICAL USE CASES

Business PC and workstation
MS-DOS and Windows 3.x
OS/2 workstation
Network and office applications
CAD / technical software
Corporate environments using MCA and SCSI expansion

MULTIERA LAB TEST PLAN

MS-DOS 6.22
Windows for Workgroups 3.11
Networking and browser tests
SCSI / BlueSCSI
Floppy and Gotek tests
Legacy website on real 486 hardware

NOTES: Specifications refer to the original 9577 family from 1992; later 77i/77s models are listed separately as family extensions.

Back to Hardware Lab

Deutsche Version | Last updated: 04-Oct-2026