Introduction

This chapter contains system board layouts and jumper settings. It is useful when you are asked to measure voltages. Use this information to help you locate parts such as electronic boards, connectors, pin numbers, and test points. This chapter also contains jumper settings for the hard disk drive, CD- ROM, and the connector information for modem adapter card.

104 IBM Desktop System HMM

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IBM 6644, 6645, 6646 manual Introduction