HP Presario 1600 Presario Select 1600 Series Maintenance and Service Guide - Page 81

Dip Switch Settings

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Maintenance & Service Guide Presario 1600 Series Portable Computers Notice | Preface | Home | Product Description | Troubleshooting | Illustrated Parts Catalog 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 1.2V (Set as Default) 2.2V 2.45V S1-1 On Off Off Power OK Voltage Setting Core Voltage 1.2V (Set as Default) 2.2V 2.45V S2-1 On Off Off Bus Frequency Setting HCLK 66.6 Mhz (Set as Default) 66.0 Mhz S2-4 On Off S1-2 Off Off On S2-2 Off Off On S1-3 Off On Off S2-3 Off On Off NOTE: The black area on the dip switch indicates the position of the switch. Bus Ratio Setting FRACTION 2.0X (133MHZ) 2.5X (166MHZ) 3.0X (200MHZ) 3.5X (233MHZ) 4.0X (266MHZ) 4.5X (300MHZ) S1-4 ON ON OFF OFF ON ON S1-5 OFF ON ON OFF OFF ON Back to Preparing the Computer for Disassembly Back to Specifications S1-6 OFF OFF OFF OFF ON ON

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Maintenance & Service Guide
Presario 1600 Series Portable Computers
Notice
|
Preface
|
Home
|
Product Description
|
Troubleshooting
|
Illustrated Parts Catalog
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
Default)
On
Off
Off
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
Default)
On
Off
Off
2.2V
Off
Off
On
2.45V
Off
On
Off
Bus Frequency Setting
HCLK
S2-4
66.6 Mhz (Set as
Default)
On
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
Back to Preparing the Computer for Disassembly
Back to Specifications