Presario 4550 System Board

4500systemboard.JPG (22940 bytes)

Compaq Presario 4500 Series Minitower System Board:
External Connectors

Function Description Designator
Video 15-Pin Header J8
Serial DSUB 9-Pin J6
Parallel DSUB 25-Pin J5
Joystick/MIDI DSUB 15-Pin 2 Row J9
USB Port USB Connector J7
Keyboard Miniature 6-Pin ½ J4
Mouse Miniature 6-Pin ½ J4
Microphone Mini Stereo J3
Line Out Mini Stereo J2
Headphone/Speaker Out Mini Stereo J1

Compaq Presario 4500 Series Minitower System Board:
Internal Connectors

Function Description Designator
CMOS Clear 2-Pin Header JP2
DIMM Socket 144-Pin DIMM DM1
Video Memory Expansion 30-Pin Small Header U12, U13
Clock Speed 5-Pin Header JP1
Cache Socket 160-Pin DIMM DM2
Button/Light Board 20-Pin Header J20
Internal Line In (CD Drive) 4-Pin Header, Key 2 J15
Power Supply 12-Pin ATPWR Header J18
Replacement Battery 4-Pin Header, Key 2 BT1
Primary IDE Drive (Hard Drive) 40-Pin Header, Key 20 J14
Secondary IDE Drive (CD Drive) 40-Pin Header, Key 20 J16
Diskette Drive 34-Pin Header J13
ISA slots ISA Slot J10, J12
ISA/PCI Shared Slot ISA and PCI slot J11, J17

 

Compaq Presario 4500 Series Configuration Jumpers

Jumper Pins Function
JP1 Processor Speed Select 1-2, 3-4 short
3-4 short
All open
3-4 short
166 MHz MMX
200 MHz MMX
233 MHz MMX
200 MHz
JP2 CMOS Clear
1-2*
Open
Secure CMOS Power
Remove jumper for 10 seconds and reinstall to
clear CMOS
JP3 CPU Core Voltage
Open
1 - 2
3 - 4
1 - 2 & 3 - 4
5 - 6
1 - 2 & 5 - 6
2.8
2.9
3.0
3.1
3.2
3.3
*Default