Presario 4550 System Board
Compaq
Presario 4500 Series Minitower System Board: |
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| 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: |
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| 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 |
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| 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 |
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| *Default | ||