User Guide

DTA: Jumpers/Switches/Controls

Jumpers/Switches/Controls

Jumpers
Switches
Controls
Connectors and Sockets

Jumpers
System Board Layout

= pins 1-2 jumpered

= pins 2-3 jumpered
Red dot notes pin 1.

A, B, C, D                                    The microprocessor's internal speed is  
(CPU SPEED)                                   200 MHz

                                              The microprocessor's internal speed is  
                                              150 MHz.

J29*                                         Supports older, non-VID processor.

                                              Supports VID-enabled P6 processor.

*There are two system board p/n's for this system.  The newest one (99244) has an        
additional jumper (J29) which is not present on the old system board (p/n 09439) and which 
allows it to work with the newer VID-enabled (Voltage IDentification) processors.  All 200 
MHz processors sold by Dell and some 150 MHz (those w/ p/n 99243) are VID-enabled.        
The system board is designed to operate with 2.1v to 3.5v P6 processors. An on-board     
voltage regulator circuit provides the required voltages from the 5 and 3.3 volt taps off 
the ATX PC power supply.  On the newer system board with J29 open, the voltage regulator  
is programmed according to the voltage ID pins of a VID-enabled P6 processor.  For the new 
system board to work with an older non-VID processor, there must be a jumper across the   
two pins of J29.                                                                          
When standing to the front of the system, J29 is located immediately in front of the     
keyboard connector's right corner.  It's pins are oriented from front to back and the     
jumper block is square (as if there were room for two more pins to the right of the       
existing pins.)

E                        (default)           Password features are enabled.          
(PASSWORD)

                                             The password features are cleared at the 
                                             next system boot.

F                        (default)           System setup settings are retained at   
(CLEAR CMOS)                                 next system boot.

                                             System setup settings are cleared at    
                                             next system boot.

G                                             Allows user to enter system setup       
(SETUP ACCESS)                                program.

                                              Prevents user from entering system setup 
                                              program

H                                            Reserved. Do not change.                
(RESERVED)

I                                            Reserved. Do not change.                
(RESERVED)

SPKR                                         Enables the system's built-in speaker.

                                              Disables the system's built-in speaker.

Switches
There are no internal configuration switches in this system.

Controls
Front-Panel Controls/Indicators
Power Switch
The power switch is a push-button on/off switch.
Power Indicator
The power indicator lights up when the system is on.
Reset Button
Pressing the reset button initiates a hardware reset. To avoid possible data or file structure corruption, use the reset button only when the system cannot be rebooted with the <CTRL-ALT-DEL> key combination, and perform an orderly shutdown of the operating system.
Hard-Disk Drive Access Indicator
The hard-disk drive access indicator lights up when the hard-disk drive is being accessed.
Diskette-Drive Access Indicators
The diskette-drive access indicators light up when the diskette-drive is being accessed.

Connectors and Sockets

Connector or Socket Description

BT2F1                 Battery connector

COM1                  Serial port 1 interface connector

COM2                  Serial port 2 interface connector

CPUFAN                Microprocessor fan connector

FLOPPY                Diskette/tape drive interface connector

HDLED                 Hard-disk drive access indicator connector

J6, J7, J8            ISA expansion-card connectors

J9, J10, J11, J12     PCI expansion-card connectors

J13, J14, J15, J16    SIMM sockets

J19                   Power input connector

J20                   3.3-V power input connector

KEYBRD                Keyboard connector

MOUSE                 Mouse connector

PARALLEL              Parallel port connector

PRIMARY IDE           Primary EIDE channel connector

PWRLED                Power indicator connector

RP                    Power switch connector

RST                   Reset button connector

SECONDARY IDE         Secondary EIDE channel connector

SPKR                  Auxiliary speaker connector

U4L1                  Microprocessor socket