IBM PS/2 (Model 95 XP 486) - Technical Specifications

IBM Personal System/2 Model 95 XP 486

Inside the 8595 (33kb)

8595 processor complexes (188kb)

General information
Machine type: 8595
Announce date: October, 1990
List price: $12,640 (8595-0G9)

Excerpt from the original announcement letter;

"The Personal System/2 (R)(PS/2(R)) Model 95 XP 486 systems are a series of high performance, highly expandable floor-standing systems, based on IBM's Micro Channel (TM) architecture and 32-bit 80486 processors. With disk storage capability of up to 1.6 billion bytes, these systems are especially suited as LAN servers and multi-user hosts. The IBM Personal System/2 Model 95 XP 486 systems provide technical leadership and reflects IBM's responsiveness to satisfy customers requirements. Through a unique design of the system, the 80486 processor is contained on a removable processor complex. This expandable processor feature of the IBM Personal System/2 Model 95 XP 486 allows processor upgrade from the 25MHz to the more powerful 33MHz system. The ability to upgrade can extend the life of the system as customer requirements for enhanced processing performance grow."

System characteristics
Microprocessor: Intel 80486 SX, DX, or DX2 (on processor complex)
Clock speed: 20 MHz, 25 MHz or 33Mhz
Coprocessor: integrated on 486DX/DX2 models, optional i80487 on SX models
Type of BUS: 32-bit Micro Channel
Total number of expansion slots: 8 (tower case)
Ports: PS/2 keyboard, PS/2 mouse, 1 DMA serial, DMA parallel, XGA,

Memory
Min/Max on system board: 8/64MB
Type of memory:
RAM: DRAM (PS/2 72-pin SIMM, MUST be installed in a MATCHED PAIRS in 0Jx/0Kx and 0Mx models) 70ns parity checked
(8 sockets)
ROM: 128kb
Cache: 8kb L1, optional 256kb L2 (256kb L2 standard on 0Mx models)

Physical description
Power supply: 329w, 110-220VAC
Weight: 23.1kg (51 lbs) (one fixed disk installed)
Dimensions (HxWxD): (501 x 203.2 x 508mm)

Mass storage
Drive bays: 7 ( 1 x 3.5" HH, 6 x 5.25" HH (4 accessible))
Floppy Disk
Size: 3.5 inch half-height
Capacity: 1.44MB (2.88MB on 0Mx models)
Hard disk
Size: 3.5 inch half-height
Capacity: 160MB (0J9), 320MB (0JD, 0KD)
Access time: 16ms (160MB), 11.5ms (400MB)
Interface: SCSI (PS/2 bus master SCSI adapter/A with cache)

Display
Size:
Display type: Optional Analog CRT
Graphics modes supported: PS/2 XGA Display adapter/A (32-bit bus master)

1024x768, 16 colours (256 colours w. memory expansion)
640x480, 256 colours

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

Software
Operating system: IBM PC DOS Versions 3.3 and higher, OS/2 1.2 and higher, AIX PS/2

Configurations
Various memory, diskette drive, hard drive, monitor, and keyboard configurations including;
8595-0G9 - System Unit 486SX-20, 4MB, 160MB, 1.44, 101 keyboard
8595-0GF - System Unit 486SX-20, 4MB, 400MB, 1.44, 101 keyboard
8595-0H9 - System Unit 486SX-25, 8MB, 160MB, 1.44, 101 keyboard
8595-0HF - System Unit 486SX-25, 8MB, 400MB, 1.44, 101 keyboard
8595-0J9 - System Unit 486DX-25, 8MB, 160MB, 1.44, 101 keyboard
8595-0JD - System Unit 486DX-25, 8MB, 320MB, 1.44, 101 keyboard
8595-0JF - System Unit 486DX-25, 8MB, 400MB, 1.44, 101 keyboard
8595-0KD - System Unit 486DX-33, 8MB, 320MB, 1.44, 101 keyboard
8595-0KF - System Unit 486DX-33, 8MB, 400MB, 1.44, 101 keyboard
8595-0LF - System Unit 486DX-50, 8MB, 400MB, 2.88, 101 keyboard
8595-0MF - System Unit 486DX-50 w. 256kb L2, 16MB (ECC), 400MB, 2.88, 101 keyboard
8595-0MT - System Unit 486DX-50 w. 256kb L2, 16MB (ECC), 1.0GB, 2.88, 101 keyboard

Options

Description (#Feature Number)(Part Number)

SYSTEM BOARD MEMORY:

MEMORY CACHE:
DASD:
COMMUNICATIONS:
* Due to physical limitations of these adapters, they cannot be installed in slot #8 of the PS/2 Model 95 XP 486 systems. The corrective service diskette (CSD) # UL79292 is required to support Realtime Interface Co-Processor OS/2 Support, Version 1.03 (Part Number 33F7229, Program Number 5662-281) on 8595-0KD system.

PROCESSOR UPGRADE:
DISPLAYS AND DISPLAY ADAPTERS:
** - Supports VGA or lower resolution modes only.
$ - The IBM Personal System/ M-Motion Video Adapter requires the M-Motion Adapter Software Diskette version 1.01 or higher.
Plus many more IBM and 3rd party adapter cards...
Note: Options may no longer be available from IBM.

Document ID:  GJAN-43WL2E
Last Modified:  2000-04-13
Copyright © 2000 IBM Corporation