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
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