Dell Precision 420 - Manual (Page 127)

Primary EIDE hard-disk drive 40-pin connector
Secondary EIDE hard-disk drive 40-pin connector
Diskette drive 34-pin connector
Remote Wake Up 3-pin connector
Audio 4-pin CD-IN connector, 4-pin AUX pocket connector; and 4-pin TAPI pocket connector
Fans 3-pin connectors
Graphics and Video
Graphics architecture:
Desktop chassis
AGP Pro50 (4X) video card (see manufacturer's specifications)
Mini tower chassis
AGP Pro110 (4X) video card (see manufacturer's specifications)
Key Combinations
Operates differently depending on your operating system. See your operating system
documentation.
or starts embedded System Setup program (during power-on self test [POST] only)
automatically starts (boots) the system from the network environment specified by the managed
boot agent (MBA) rather than from one of the devices in the System Setup Boot Sequence option
launches the utility partition (if installed) during system start-up
Controls and Indicators
Reset control push button
Power control push button
Power indicators green light-emitting diode (LED) on system board by control panel connector to indicate standby
power
green LED on system board by memory —steady when system is on; blinking in sleep state
dual-color LED on front panel —steady green when system is on; blinking green in sleep state;
yellow for diagnostics
Hard-disk drive access indicator green LED
Diagnostic LEDs four dual-color LEDs on back panel —green, yellow, or off to indicate diagnostic codes
Link integrity indicator green LED for 10-Mb operation; orange LED for 100-Mb operation
Activity indicator (on integrated NIC
connector) yellow LED
Power
DC power supply:
Wattage desktop chassis: 330 watts (W)
mini tower chassis: 410 W
Heat dissipation desktop chassis: 750 British thermal units (BTU)/hour (hr) (nominal)
mini tower chassis: 750 BTU/hr (nominal)
Voltage
90 to 135 volts (V) at 60 hertz (Hz); 180 to 265 V at 50 Hz
Backup battery 3-V CR2032 coin cell