Service Manual

Serial ATA:
Mini–tower
four 7-pin connectors
Desktop
three 7-pin connectors
Small form factor
three 7-pin connectors
Memory
four 240-pin connectors
Internal USB device
none
Processor fan
one 5–pin connector
Hard-drive fan:
Mini–tower
none
Desktop
none
Small form factor
one 5–pin connector
Front panel control
one 40–pin connector
Processor
AM3 941–pin connector
Power 12V
one 4–pin connector
Power
one 24–pin connector
PS/2 or serial connector (optional)
one 24–pin connector
ControlsandLights
Front of the computer:
Power button light
green light—Solid green light indicates power-on
state; blinking green light indicates sleep state of the
computer
amber light—Solid amber light when the computer
does not start indicates a problem with the system
board or power supply. Blinking amber light indicates
a problem with the system board
Power button
front of chassis—push button
Drive activity light
displays the SATA hard drive or optical drive activity
green light—blinking green light indicates that the
computer is reading data from, or writing data to,
from the drive
Network connectivity light
green light—a good connection exists between the
network and the computer
off (no light)—the computer is not detecting a
physical connection to the network
Diagnostic lights
four lights located on the front/back panel of the
computer. For information on the diagnostic lights,
see the Service Manual available on the Dell Support
website at support.dell.com/manuals
Back of the computer:
Link integrity light on integrated network adapter
green light—Link 10 Mbps
orange light—Link 100 Mbps
Network activity light on integrated network
adapter
yellow light
Power
DC power supply
Wattage:
EPA
Non-EPA
Mini–tower
255 W
305 W
Desktop
255 W
255 W
Small form factor
235 W
235 W
Maximum heat dissipation:
Mini–tower
1041 BTU/hr.
1041 BTU/hr.
Desktop
955 BTU/hr.
955 BTU/hr.
Small form factor
938 BTU/hr.
938 BTU/hr.
Voltage:
Mini–tower
115/230 VAC, 50/60 Hz, 3.6/1.8 A
115/230 VAC, 50/60 Hz, 3.6/1.8
A
Desktop
115/230 VAC, 50/60 Hz, 4.0/2.0 A
115/230 VAC, 50/60 Hz, 4.0/2.0
A
Small form factor
115/230 VAC, 50/60 Hz, 3.5/1.8 A
115/230 VAC, 50/60 Hz, 3.5/1.8
A
Coin–cell battery
3 V CR2032 lithium coin cell
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