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IBM PS/1 User Manual

IBM PS/1
304 pages
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1060—Math Coprocessor (386SX, 486SX, and
Upgrade for 486DX/486DX2)
Warning: The Math Coprocessor is sensitive to static discharge. See “Han-
dling ESD-Sensitive Parts” on page 4-47.
Cover (1005).
Adapter Card (1035) if applicable.
Machine type 2133—Left DASD Support Bracket (1010).
Machine type 2155—Right DASD Support Bracket (1015).
Use a Coprocessor Removal Tool to remove the math coprocessor.
386SX System Board—When reinstalling, be certain the notch on the
math coprocessor is aligned with the notch in the socket.
486SX System Board—When reinstalling, be certain the dot on the math
coprocessor is aligned with the dot in the socket.
486DX (72-Pin Memory SIMM) System Board—When upgrading a
486DX (72-pin memory SIMM) to a 486DX2, refer to “2060—Upgrade
Processor (486DX and 486DX2 with 72-Pin Memory SIMM Only)” on
page 4-41 for the correct position of the processor.
Note: Run the Configuration Utility after adding or removing a math
coprocessor.
Repair Information 4-21

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IBM PS/1 Specifications

General IconGeneral
ProcessorIntel 80286 or 80386
Processor Speed10 MHz (80286)
RAM1 MB (expandable to 2 MB or more)
Storage40 MB hard drive
Floppy Drive3.5" 1.44 MB
GraphicsVGA
PortsSerial, Parallel, Mouse

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