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Technical Specifications

Dell™ Dimension™ 4400

Microprocessor
Microprocessor type	Intel® Pentium® 4 microprocessor that runs at 1.50, 1.60, 1.70, 1.80, 1.90, 2.0, 2.20, or 2.40 GHz internally and 400 MHz externally
L1 cache	8 KB first-level
L2 cache	integrated 256-KB or 512-KB at full microprocessor speed

System Information
System chip set	Intel 845 with DDR memory support
DMA channels	four
Interrupt levels	15
System BIOS chip	4 Mb (512 KB)
System clock	400-MHz data rate

Expansion Bus
Bus types	PCI and AGP
Bus speed	PCI: 33 MHz; AGP: 66 MHz
AGP connector	one
AGP connector size	172 pins
AGP connector data width (maximum)	32 bits
AGP bus protocols	4x/2x modes at 1.5 V
PCI connectors	four
PCI connector size	120 pins
PCI connector data width (maximum)	32 bits

Memory
Architecture	DDR SDRAM
Memory connectors	two
Memory capacities	128-, 256-, and 512-MB non-ECC DDR SDRAM
Minimum memory	128 MB
Maximum memory	1 GB
Memory type	DDR (non-ECC)
BIOS address	F8000h

Drives
Externally accessible	two 5.25-inch bays two 3.5-inch bays
Internally accessible	two bays for 1-inch–high IDE hard drives
Available devices	ATA-66 or ATA-100 Ultra DMA hard drive, CD drive, Zip drive, DVD drive, DVD+RW drive, and CD-RW drive

Ports and Connectors
Externally accessible:
Serial	9-pin connector; 16550C-compatible
Parallel	25-hole connector (bidirectional)
Video	15-hole connector
Keyboard	6-pin mini-DIN connector or USB connector
Mouse	6-pin mini-DIN connector or USB connector
USB	two front-panel and two back-panel USB–compliant connectors
Headphone	front-panel miniature connector
Audio1	three miniature connectors for line-in, line-out, and microphone
Internally accessible:
Primary IDE channel	40-pin connector on PCI local bus
Secondary IDE channel	40-pin connector on PCI local bus
Floppy drive	34-pin connector
1 Present only on computers with integrated audio capabilities.

Audio2
Audio controller	ADI 1885
2 Present only on computers with integrated audio capabilities.

Video
Video controller	AGP 4X

Controls and Lights
Power control	push button
Power light	green light on power button—blinking green in sleep state; solid green for power on state; solid amber for possible internal power problem
Hard-drive access light	green
Diagnostic code lights	four bicolor (amber and green) located on back panel

Power
DC power supply:
Wattage	250 W
Heat dissipation	534 BTU (fully-loaded computer without monitor)
Voltage (switch-selectable on back panel)	90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz; 100 V at 50/60 Hz for Japanese computers
Backup battery	3-V CR2032 coin cell

Physical
Height x Width x Depth	42.5 x 18.1 x 44.7 cm (16.7 x 7.1 x 17.6 inches)
Weight	12.7 kg (28 lb)

Environmental
Temperature:
Operating	10º to 35ºC (50º to 95ºF)3
Storage	–40º to 65ºC (–40º to 149ºF)
Relative humidity	20% to 80% (noncondensing)
Maximum vibration:
Operating	0.25 G at 3 to 200 Hz at 1/2 octave/min
Storage	0.5 G at 3 to 200 Hz at 1/2 octave/min
Maximum shock:
Operating	bottom half-sine pulse with a change in velocity of 50.8 cm/sec (20 inches/sec)
Storage	23-G faired-square wave with a velocity change of 508 cm/sec (200 inches/sec)
Altitude:
Operating	–15.2 to 3048 m (–50 to 10,000 ft)3
Storage	–15.2 to 10,670 m (–50 to 35,000 ft)
3 At 35°C (95°F), the maximum operating altitude is 914 m (3000 ft).

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