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IBM PS/2 (Model 77) - Technical Specifications

Inside the 9577 (68kb)

General information
Machine type: 9577
Announce date: October, 1992
List price: $4,153 (9577-0UA), $4,920 (9577-0NA)

Excerpt from the original announcement letter;

"The new Premier PS/2(R) 76, 77 and Ultimedia(TM) M77 are full 32 bit 486 Micro Channel(R) systems designed to enhance the PS/2 product line at very attractive prices. These systems are offered in two mechanical packages, the PS/2 76 provides 3 slots (2 slots available for expansion) and 3 bays (1 available for expansion) and the PS/2 77 and M77 provide 5 slots (of which 4 slots on the 77 and 3 slots on M77 are available for expansion) and 4 bays (of which 2 bays on the 77 and 1 on the M77 are available for expansion). Standard features on these new systems include a SCSI Controller with larger and faster hard disk drives, video is provided via the XGA-2(TM) Display Adapter/A designed to meet the International Standard Organization (ISO) requirements, support for up to 32MB of 70 ns memory on the planar, two 9-pin serial ports, A high speed DMA parallel port and OS/2 2.00.1 installed on the hard disk drive and ready for use in a standard configuration. The enhanced IBM mouse is a standard feature in all the systems. In addition, M77 Ultimedia Models come with a CD-ROM, built-in audio functions and a variety of Ultimedia sampler applications. The systems support up to 32 MB of 70-ns memory on the planar in four SIMM sockets. All systems ship with one 8MB single in-line memory module (SIMM) located in SIMM socket 1 leaving three SIMM socket available for memory expansion.

System characteristics
Microprocessor: Intel 80486 SX or 80486DX2
Clock speed: 33 MHz or 66Mhz
Coprocessor: optional 80486 DX2-66 (486sx-33 models only)
Type of BUS: 32-bit Micro Channel
Total number of expansion slots: 5 (desktop case w. floor stand for vertical use)
Ports: PS/2 keyboard, PS/2 mouse, 2 DMA serial, DMA parallel, XGA-2, SCSI

Memory
Min/Max on system board: 8/32MB
Type of memory:
RAM: DRAM (PS/2 72-pin SIMM) 70ns parity checked (4 sockets)
ROM: 128kb
Cache: 8kb L1, 0kb L2

Physical description
Power supply: 197w, 110-220VAC manual voltage switch
Weight: 11.8kg (26.0 lbs)
Dimensions (HxWxD): (115 x 360 x 395mm)

Mass storage
Drive bays: 4 ( 2 x 5.25", 2 x 3.5")
Floppy Disk
Size: 3.5 inch slim-height
Capacity: 2.88MB media sense
Hard disk
Size: 3.5 inch half-height
Capacity: 212MB (0UA), 400MB (0UF), 212MB (0NA), 400MB (0NF)
Access time: 12ms
Interface: SCSI (integrated bus master cached SCSI controller)

Display
Size:
Display type: Optional Analog CRT
Graphics modes supported: Integrated 32-bit XGA-2 Display adapter

1024x768, 256 colours, 75Hz NI
800x600, 65,536 colours
640x480, 65,536 colours

Keyboard
Type: 101 key enhanced, 122 key host connect, 84 key space saving

Software
Operating system: IBM PC DOS Versions 5.0, 5.00.1 or higher

Configurations
Various memory, diskette drive, hard drive, monitor, and keyboard configurations including;
9577-0UA - System Unit 486SX-33, 8MB, 212MB, 2.88, 101 keyboard
9577-0UF - System Unit 486SX-33, 8MB, 400MB, 2.88, 101 keyboard
9577-0NA - System Unit 486DX2-66, 8MB, 212MB, 2.88, 101 keyboard
9577-0NF - System Unit 486DX2-66, 8MB, 400MB, 2.88, 101 keyboard
9577-1UA - Ultimedia M77 System Unit 486SX-33, 8MB, 212MB, 2.88, SCSI CD-ROM, M-Audio adapter/A, front mounted
headphone & microphone jacks, a microphone, and volume control
9577-1NA - Ultimedia M77 System Unit 486DX2-66, 8MB, 212MB, 2.88, SCSI CD-ROM, M-Audio adapter/A, front mounted
headphone & microphone jacks, a microphone, and volume control

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