Presario 4808 System Board Jumpers
Pentium MMX System Board: External Connectors |
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Function |
Description | Designator |
| Speaker/Headphone | Mini Stereo | 1/2 J2 |
| Audio Line Out | Mini Stereo | 1/2 J2 |
| Microphone In | Mini Stereo | 1/2 J5 |
| Audio Line In | Mini Stereo | 1/2 J5 |
| Keyboard | Miniature 6-Pin | 1/2 J6 |
| Mouse | Miniature 6-Pin | 1/2 J6 |
| Serial Port | DSUB 9-Pin 2 Row | J8 |
| USB Port | USB Connector | J11 |
| Parallel Port | DSUB 25-Pin | J17 |
| Video | 15-Pin Header | J24 |
Pentium MMX System Board: Internal Connectors |
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| Function | Description | Designator |
| Feature Connector | 26-Pin Header | J25 |
| CMOS | 2-Pin Header | P12 |
| DIMM Sockets | 168-Pin DIMM | J21, J22 |
| Bus Speed | 3-Pin Header | P9 |
| Creativity Imaging Center | 10-Pin Header | J19 |
| Video Memory Expansion | 30-Pin Small Header | J18, J23 |
| Clock Multiplier | 5-Pin Header | P11 |
| Riser Board | PCI/ISA Slot | J16 |
| Cache Socket | 160-Pin DIMM | J13 |
| Power Supply | 12-Pin ATPWR Header | J14 |
| Button/Light Board | 20-Pin Header | J9 |
| MIDI | 9-Pin Header | J8 |
| CD Audio | 4-Pin Header, Key 2 | P6 |
| Internal Microphone | 4-Pin Header, Key 2 | P5 |
| Internal Speaker | 4-Pin Header, Key 2 | P3 |
| Power Supply | 12-Pin ATPWR Header | P1 |
| External Battery | 4-Pin Header, Key 2 | P2 |
| Primary IDE Drive (Hard Drive) | 40-Pin Header, Key 20 | J1 |
| Secondary IDE Drive (CD Drive) | 40-Pin Header, Key 20 | J3 |
| Diskette Drive | 34-Pin Header | J4 |
Configuration Jumpers |
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| Jumper | Pins | Function |
| P2 | Replacement Battery Connector | |
| P9 Bus Speed Select | 1-2 2-3 |
60 MHz CPU External Bus Frequency 66 MHz CPU External Bus Frequency |
| P11 CPU Clock Multiplier | A1-A2 B1-B2 A2-A3 B1-B2 A2-A3 B2-B3 A1-A2 B2-B3 |
x 3.5 (233 MHz only) x 2.0 x 2.5 x 3.0 |
| P12 CMOS Clear | 1-2 * Open | Secure CMOS Power Remove jumper for 10 seconds and reinstall to clear CMOS |
| * Default | ||