HP 1630 manual Dip Switch Settings, CPU Core Voltage Setting, Dip Switch System Board Settings

Maintenance & Service Guide

Presario 1600 Series Portable Computers

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Removal & Replacement Procedures Specifications Connector Pin Assignments Battery Pack

Dip Switch Settings

CAUTION: When replacing the system board, ensure the dip switch voltage settings on the system board are correct for the computer model and processor voltage marked on the processor chip. If the system board dip switch voltage settings are not correct, damage may occur to the computer and/or system board.

Dip Switch System Board Settings

CPU Core Voltage Setting

Core Voltage	S1-1	S1-2	S1-3
1.2V (Set as	On	Off	Off
Default)
2.2V	Off	Off	On
2.45V	Off	On	Off

Power OK Voltage Setting

Core Voltage	S2-1	S2-2	S2-3
1.2V (Set as	On	Off	Off
Default)
2.2V	Off	Off	On
2.45V	Off	On	Off

Bus Frequency Setting

HCLK		S2-4
66.6	Mhz (Set as	On
Default)
66.0	Mhz	Off

NOTE: The black area on the dip switch indicates the position of the switch.

Bus Ratio Setting

FRACTION	S1-4	S1-5	S1-6
2.0X (133MHZ)	ON	OFF	OFF
2.5X (166MHZ)	ON	ON	OFF
3.0X (200MHZ)	OFF	ON	OFF
3.5X (233MHZ)	OFF	OFF	OFF
4.0X (266MHZ)	ON	OFF	ON
4.5X (300MHZ)	ON	ON	ON

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