Presario 5528 System Board
Configuration Jumpers |
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| Jumper | Pins |
Function |
| P1 CMOS Clear |
1-2* |
Secure CMOS Power Remove jumper for 10 seconds and reinstall to clear CMOS |
| P2 CPU Clock Multiplier |
A1-A2 B1-B2 |
1.50 x * |
| A2-A3 B1-B2 |
2.0 x | |
| A2-A3 B2-B3 |
2.5 x | |
| A1-A2 B2-B3 |
3.0 x | |
| P3 Bus Speed Select | 1-2 | 50 MHz CPU External Bus Frequency |
| 2-3 | 40 MHz CPU External Bus Frequency * | |
| 3-4 | 60 MHz CPU External Bus Frequency | |
| 4-5 | 66 MHz CPU External Bus Frequency | |
| *Default | ||
Compaq Presario 4400 Series System Board: External Connectors |
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| Function | Description | Designator |
| Keyboard | Miniature 6-Pin | J11 |
| Mouse | Miniature 6-Pin | J1 |
| Joystick/MIDI | DSUB 15-Pin 2 Row | J21 |
| Parallel | DSUB 25-Pin | J5 |
| Serial | 9-Pin Header | J17 |
| Phone Line to Wall Jack Telco | 6-Pin | Unknown |
| Phone Line to Phone Telco | 6-Pin | Unknown |
| Microphone In | Mini Stereo | J14 |
| Speaker/Headphone Out | Mini Stereo | J16 |
| Line In | Mini Stereo | J9 |
| Line Out | Mini Stereo | J7 |
Compaq Presario 4400 Series System Board: Internal Connectors |
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| Function | Description | Designator |
| SIMM Sockets | 72-Pin SIMM | J6/J8 |
| Replacement Battery | 4-Pin Header, Key 2 | J12 |
| Feature Connector | 26-Pin Header | J13 |
| LPB/MPEG | 34-Pin Header | J4 |
| MPEG Connector | 10-Pin Header | J10 |
| MPEG Audio | 4-Pin Header | P7 |
| Wavetable | 26-Pin Header | J18 |
| Video Memory Expansion | 30-Pin Small Header | J4, J6 |