2500 SX/33  
(250-1623)                 Math Coprocessor           Faxback Doc. # 1729

Note: A 33 MHz 387SX Math Coprocessor can be obtained from Third Party
      Products.

The math coprocessor socket on the main logic board supports a 33 MHz 387SX
math coprocessor.

Read the instructions in this section before you install your math
coprocessor.

CAUTIONS:

* Incorrect installation of the math coprocessor can cause electrical 
  damage to the main logic board or the coprocessor.

* Touch a grounded metal object before handling the math coprocessor and
  other electrical components.

Installation Instructions:

1. Orient the math coprocessor so that the notched corner of the 
   coprocessor aligns with the notched corner of the socket.

2. Taking care not to bend or touch the metal pins, press the coprocessor
   into the socket.

3. Run the setup utility and press F2 to save the new system configuration.

Main Logic Board Layout:
                              Back of Computer
┌──────────────┬───┬─┬─┬─┬─┬───────┬──────────┬─┬────┬───┬─┬─┬─┬──────────┐
│              └───┘ └─┘ └─┘       └──────────┘ └────┘   └─┘ └─┘          │
│                               ┌─┐                                       │
│                °              │ │<── Riser Card                         │
│                °              │ │                                       │
│                °              │ │                                 ┌─┬─┐ │
│                               │ │       Math Coprocessor          │ │ │ │
│ ┌───────┐                     │ │             Socket ───┐         │ │ │ │
│ ├───────┤                     │ │                       │         │ │ │ │
│ └───────┘                     │ │   Pin 1  ────────>┌─────────┐   │ │ │ │
│                               ├─┤   Location        │         │   │ │ │ │
│                               │ │                   │   U10   │   │ │ │ │
│   ┌───┐                       │ │                   │         │   │ │ │ │
│   │   │                       │ │                   └─────────┘   └─┴─┘ │
│   └───┘                       │ │ ┌──────────────┐ ┌───────────┐        │
│                               └─┘ └──────────────┘ └───────────┘        │
└─────────────────────────────────────────────────────────────────────────┘


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