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| Item | Description | Item | Description | 
| J1 | Diskette Drive Connector (34 Pin) | SW1 | Processor Speed Switches | 
| P20 | Primary IDE Connector (40 Pin) | P17 | Power Supply Connector | 
| P21 | LS-120 Connector (40 Pin) | P15 | AUI Connector* | 
| P25 | CD-ROM Connector (50 Pin)** | J4 | Riser Board Socket | 
| J11 | Audio Connector | J7 | DIMM Socket | 
| P16 | Power Cable and LED Connector | J8 | DIMM Socket | 
| P14 | External Battery, Clear CMOS jumpers | U26 | Processor Socket | 
| Note: *The AUI connector on the back of the unit connects to the system board via a cable. All other external connectors are integrated onto the system board. ** The CD ROM connector is specific to the Deskpro 4000s only. 
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| Switch SW1 | ||||||
| Password Control |  | |||||
| S1 | S2 | S3 | S4 | S5 | S6 | Processor Speed | 
| On -Disable Password | On | On | Off | On | Off | 166-MHz | 
| Off -Enable Password | Off | On | Off | On | Off | 200-MHz | 
| Off | Off | Off | On | Off | 233-MHz | |
| *66 MHz bus speed. | ||||||
| Do not configure the system board to operate faster than the speed at which the processor is rated. Doing this could result in unreliable operation or processor damage. | ||||||
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| Jumper P14 | 
| External Battery Connector | 
| Clear CMOS |