IBM Personal System/2 Model 56 486SLC2
Inside the 9556
General information
Machine type: 9556
Announce date: October, 1992
Excerpt from the original announcement letter;
"The new PS/2(R) 56, 57, Ultimedia and Ultimedia DV M57 486SLC2, are Micro Channel(R) systems designed to complement and enhance the product line. These products provide improvements such as: increased processor speed with the 50/25-MHz 486SLC2 microprocessor, an internal memory cache controller with 16KB memory cache, larger fast hard disks - 104 Million Bytes (MB)(model 0B6) and 212 Million Bytes (MB)(model 0BA, 1BA and 2BA), three (3) total memory sockets with one (1) 8MB 70ns SIMM located in socket 1 leaving two (2) sockets available for expansion up to 16MB on the planner, enhanced IBM Mouse, video provided via the graphics XGA-2 chip set designed to meet the International Organization for Standardization (ISO) requirements (refer to A92-902 and A92-848), a small computer system interface (SCSI) input/output (I/O) interface, enhanced security, two 9-pin Serial ports, and a high speed DMA Parallel port."
System Characteristics
Microprocessor: IBM 486slc2 (32 bit)
Clock speed: 50/25 Mhz
Coprocessor:
Type of BUS: 16-bit Micro Channel
Total number of expansion slots: 3 (desktop case)
Ports: PS/2 keyboard, PS/2 mouse, 2 DMA serial, DMA parallel, XGA-2, SCSI
Memory
Min/Max on system board: 8/16MB
Type of memory:
RAM: DRAM (PS/2 72-pin SIMM) 70ns parity checked (3 sockets)
ROM: 128kb
Cache: 16kb L1, 0kb L2
Physical description
Power supply: 118w, 110-220VAC auto sense
Weight: 11.8kg (26.0 lbs)
Dimensions (HxWxD): (115 x 360 x 395mm)
Mass storage
Drive bays: 2 ( 5.25" (2 accessible))
Floppy Disk
Size: 3.5 inch slim-height
Capacity: 2.88MB media sense
Hard disk
Size: 3.5 inch half-height
Capacity: 104MB (0B6), 212MB (0BA)
Access time: 12ms
Interface: SCSI (integrated 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;
9556-0B6 - System Unit 486slc25, 8MB, 104MB, 2.88, 101 keyboard
9556-0BA - System Unit 386slc20, 8MB, 212MB, 2.88, 101 keyboard
Options
| SYSTEM BOARD MEMORY | ||
| 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 |
| DASD | ||
| IBM Personal System/2 Micro Channel SCSI Adapter | 1005 | 6451109 |
| IBM Personal System/2 Micro Channel SCSI Adapter with Cache | 1018 | 6451110 |
| IBM Personal System/2 1.44MB 1-Inch High Diskette Drive | 0030 | 6451130 |
| IBM Personal System/2 2.88MB 1-Inch High Diskette Drive | 1106 | 6451106 |
| IBM Personal System/2 60MB SCSI Fixed Disk Drive(B,D) | 1049 | 6451049 |
| IBM Personal System/2 80MB SCSI Fixed Disk Drive (D) | 1045 | 6451045 |
| IBM Personal System/2 120MB SCSI Fixed Disk Drive(B,D) | 1050 | 6451050 |
| IBM Personal System/2 160MB SCSI Fixed Disk Drive (D) | 1046 | 6451046 |
| IBM Personal System/2 320MB SCSI Fixed Disk Drive (D) | 1108 | 6451234 |
| IBM Personal System/2 400MB SCSI Fixed Disk Drive (D) | 1081 | 6451235 |
| IBM Personal System/2 Micro Channel SCSI Adapter External Terminator (for F/N 1018) | 1039 | 6451039 |
| IBM Personal System/2 3.5-inch Rewritable Optical Drive | 0162 | 6450162 |
| IBM Personal System/2 CD-ROM Drive | 1113 | 6451113 |
| IBM Personal System/2 5.25-inch Slim High Diskette Drive | 1066 | 6451066 |
| IBM Personal System/2 5.25-inch Diskette Adapter/A(A) | 1007 | 6451007 |
| IBM Personal System/2 SCSI Fixed Disk Drive Kit D (B) | 1119 | 6451120 |
| IBM Personal System/2 External CD-ROM Drive 3510-001 | 3510001 | |
| IBM Personal System/2 External Storage Enclosure for SCSI Devices 3511-003 | 3511003 | |
| IBM Personal System/2 4869-001 5.25-inch 360KB External Diskette Drive (A) | 4869001 | |
| IBM Personal System/2 4869-002 5.25-inch 1.2MB External Diskette Drive (A) | 4869002 | |
| IBM Personal System/2 Upgrade Kit for Diskette Drives | 5106 | 6451127 |
| IBM PS/2 Model 56 LS Upgrade kit for SCSI Devices | 5108 | 6451129 |
| COMMUNICATIONS | ||
| IBM Personal System/2 Leased Line Modem | 1862 | 26F1862 |
| IBM Personal System/2 Adapter/A for Ethernet Networks | 1091 | 6451091 |
| IBM Personal System/2 Dual Async Adapter/A | 1014 | 6451013 |
| The IBM 3270 Connection | 2000 | 74F3465 |
| System/370(TM) Channel Emulator/A | 3205 | 1674899 |
| IBM System 36/38 Workstation Emulation Adapter | 6279 | 69X6279 |
| IBM PC Network Baseband Adapter/A | 1223 | 1501223 |
| IBM PC Network Adapter II/A (J) | 1222 | 1501222 |
| IBM PC Network Adapter II/A -- Frequency 2 (J) | 5647 | 96X5647 |
| IBM PC Network Adapter II/A -- Frequency 3 (J) | 5648 | 96X5648 |
| IBM Token Ring Network Adapter/A | 4790 | 69X8138 |
| IBM Token Ring Network Adapter/A -- Remote Program Load | 8881 | 25F8887 |
| IBM Token Ring Network 16/4 Adapter/A | 1133 | 16F1133 |
| IBM Token Ring Network 16/4 Busmaster Adapter/A | 4041 | 74F4140 |
| IBM Token Ring Network 16/4 Trace & Performance Adapter/A (H) | 5130 | 74F5130 |
| IBM Personal System/2 300/1200/2400 Internal Modem/A | 1755 | 94X1755 |
| IBM Realtime Interface Co-Processor Multiport/2 (512KB) | 6263 | 09F1897 |
| IBM Realtime Interface Co-Processor Multiport/2 (1MB) | 6247 | 16F1820 |
| IBM Realtime Interface Co-Processor Multiport/2 8 Port RS-232 Interface Board | 6265 | 09F1952 |
| IBM Realtime Interface Co-Processor Multiport/2 8 Port RS-422A Interface Board | 6326 | 15F8852 |
| IBM Realtime Interface Co-Processor Multiport/2 6 Port RS-232C Synchronous Interface Board | 6327 | 15F8861 |
| IBM Realtime Interface Co-Processor Multiport/2 4 Port RS-232 Interface Board | 6267 | 09F1955 |
| IBM Realtime Interface Co-Processor Multiport/2 RS-232/RS-422 Interface Board | 6266 | 09F1958 |
| IBM Realtime Interface Co-Processor Portmaster(TM) Adapter/A (512KB) (J) | 6360 | 53F2601 |
| IBM Realtime Interface Co-Processor Portmaster Adapter/A (1MB) (J) | 6364 | 53F2604 |
| IBM Realtime Interface Co-Processor Portmaster Adapter/A (2MB) (J) | 6368 | 53F2607 |
Plus many more IBM and 3rd party adapter cards...
Note: Options may no longer be available from IBM.