IBM PS/2 (Model 40 SX) - Technical Specifications

IBM Personal System/2 Model 40 SX

General information
Machine type: 8540
Announce date: June, 1991

Excerpt from the original announcement letter;

" The Personal System/2 (R) (PS/2 (R)) Model 40 SX system unit is an enhanced version of the IBM PS/2 Model 30 286 and features the 80386SX microprocessor, 2MB system board memory (expandable to 16MB on planar), new 3.5-inch DASD options, five slots and four bays and 16-bit video graphics array (VGA). The 80386SX microprocessor operates at 20MHz with zero to two wait states to system memory. "

System characteristics
Microprocessor: Intel 80386sx (32 bit)
Clock speed: 20 MHz, 0-2 wait states
Coprocessor: socket for optional i80387 math coprocessor
Type of BUS: 16-bit (AT BUS)
Total number of expansion slots: 5
Ports: PS/2 keyboard, PS/2 mouse, serial, parallel, VGA

Memory
Min/Max on system board: 2/16MB
Type of memory:
RAM: DRAM (PS/2 72 pin SIMM) 85ns w. parity. (3 sockets, 2 available)
ROM: ?
Cache: n/a

Physical description
Power supply: 197w, 110/220VAC switchable
Weight: 12.6kg (27.8 lbs) (Diskette and hardfile model)
Dimensions (HxWxD): (169 x 440 x 394mm)

Mass storage
Drive bays: 4 (1 x 3.5", 3 x 5.25")
Floppy Disk
Size: 3.5 inch slim-height
Capacity: 1.44MB
Hard disk
Size: 3.5 inch half-height
Capacity: 0MB (model 040), 40MB (model 043), 80MB (model 045)
Access time: 17ms
Interface: AT-IDE

Display
Size:
Display type:
Graphics modes supported: Integrated 16-bit VGA Display adapter

Keyboard
Type: 101 key enhanced or 122 key host connect

Software
Operating system: IBM PC DOS Versions 3.30, 4.01, 5.0, OS/2 1.3EE, OS/2 1.3SE or higher

Configurations
Various memory, diskette drive, hard drive, monitor, and keyboard configurations including;
8540-040 - 386sx20,2MB,1.44MB
8540-043 - 386sx20,2MB,40MB,1.44MB
8540-045 - 386sx20,2MB,80MB,1.44MB

Options
IBM Personal System/2 8MB Memory Module Kit-80ns 1401 6450129
IBM Personal System/2 4MB Memory Module Kit-80ns 3933 87F9977
IBM Personal System/2 1MB Memory Module Kit-85ns 5212 6450603
IBM Personal System/2 2MB Memory Module Kit-85ns 5213 6450604
IBM Personal System/2 2MB Memory Module Kit-80ns 5214 6450608
IBM Personal System/2 2MB Memory Module Kit-70ns 0129 6450902
IBM Personal System/2 4MB Memory Module Kit-70ns 0128 6450128
IBM Personal System/2 8MB Memory Module Kit-70ns 5116 6450130


Communications/Connectivity Feature Number Part Number
Serial/Parallel Adapter 215 6450215
IBM SDLC Communications Adapter 1205 1501205
IBM PC Network Adapter II 1220 1501220
IBM PC Network Baseband Adapter 1221 1501221
IBM Enhanced 5250 Display Station Emulation Adapter Kit, Version 2.2 2911 30F5383
IBM Enhanced 5250 Emulation Adapter and Cable Kit 5622 30F5622
IBM S/370 (TM) Channel Emulator Card 3200 6193413
IBM 3278/3279 Emulation Adapter 5050 53F6425
IBM Realtime Interface Co-Processor (128KB) 6165 85X2710
IBM Realtime Interface Co-Processor (512KB) 6166 85X2706
IBM Realtime Interface Co-Processor Multiport (128KB) 6241 00F5527
IBM Realtime Interface Co-Processor Multiport, Model 2 (1MB) 6590 33F8791
IBM Realtime Interface Co-Processor RS-232C Interface Board 6051 60X8738
IBM Realtime Interface Co-Processor CCITT V.35 Interface Board 6053 67X1256


Description Feature Number Part Number
IBM Realtime Interface Co-Processor RS-422A Interface Board 6064 67X1255
IBM Realtime Interface Co-Processor 20 mA Current Loop Interface Board 6066 67X1257
IBM Realtime Interface Co-Processor 128K Memory Expansion 6055 60X8199
IBM Realtime Interface Co-Processor 512K Memory Expansion 6161 76X1019
IBM Realtime Interface Co-Processor Multiport 512K Memory Expansion 6242 00F5529
IBM Realtime Interface Co-Processor Multiport Four Port RS-422 Addition 6243 09F1989
IBM Realtime Interface Co-Processor Multiport Four Port RS-232 Addition 6245 00F5530
IBM Realtime Interface Co-Processor Surge Protection Adapter 6361 53F2625
IBM Realtime Interface Co-Processor 8 Port RS-232 Interface Board/A 6362 53F2610
IBM Realtime Interface Co-Processor 8 Port RS-422 Interface Board/A 6363 53F2613
IBM Realtime Interface Co-Processor Selectable Interface Board/A 6365 53F2616
IBM Realtime Interface Co-Processor 8 Port RS-232 Interface Board/A HML 6206 33F5338
IBM Realtime Interface Co-Processor 8 Port RS-422 Interface Board/A HML 6207 33F5339
IBM Realtime Interface Co-Processor Selectable Interface Board/A HML 6208 33F5340
IBM Token Ring Network 16/4 Adapter 7367 25F7367
IBM Token Ring Network PC Adapter II 9858 25F9858
IBM PC 5178-001 Network Translator Unit 5178001
IBM PC 5841-001 1200 Baud Modem (external) 5841001
IBM PC 5853-001 2400 Baud Modem (external) 5853001
IBM PC 8228-001 Token-Ring Network Multi-Station Access Unit 8228001

Plus many more IBM and 3rd party adapter cards...
Note: Options are no longer available from IBM.

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

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

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