Presario 2256 System Board
2256 System Board: Core Voltage |
|||
| 233 MHz | 266 MHz | 300 Mhz | |
| JP1 |
|
|
|
| JP2 (For Clearing Cmos) | Short 2&3 | ||
| JP2 (Default Setting) | Short 1&2 | ||
| JP3 | Short 5&6 (3.2 volts) | All Open (2.2 volts) | |
| JP4 | All Open | Short 3&4 | |
2256 System Board: External Connectors |
||
| Function | Description | Designator |
| Microphone | Mini-Jack | ½ J3 |
| Speaker Out/Headphone (amplified) | Mini-Jack | ½ J3 |
| Line Out (non-amplified) | Mini-Jack | ½ J3 |
| Joystick/MIDI | DSUB 15-Pin, 2 Row | J1 |
| Mouse | Miniature 6-Pin | ½ J4 |
| Keyboard | Miniature 6-Pin | ½ J4 |
| USB | Dual | J7 |
| Parallel | DSUB 25-Pin | J5 |
| Serial | DSUB 9-Pin | J6 |
| Video | DSUB 15-Pin, 3 Row | J8 |
| Function | Description | Designator |
| CD Audio | 4-Pin Header | JP1 |
| Power Supply | 12-Pin Header | J18 |
| DIMM Sockets | 72-Pin DIMM | DM1 |
| L2 Pipeline Burst Cache | 72-Pin DIMM | DM2 |
| Button/Light Board | 8-Pin Header | J20 |
| CMOS | 3-Pin Header | J21 |
| Right Speaker | 2-Pin Shrouded Header | J22 |
| Primary IDE Drive (CD/Hard Drive) | 40-Pin Header, Key 20 | J14 |
| Diskette Drive | 34-Pin Header, Key 3 | J13 |
| CD Drive | 34-Pin Header, Key 3 | J16 |
| Left Speaker | 2-Pin Shrouded Header | J23 |
| Modem Connector | 62-Pin Edge | J19 |
| Processor (modified) | Socket 7 | U43 |
| Replacement Battery | 4-Pin Header, Key 2 | BT1 |