Back to Contents Page

Specifications

Dell™ Dimension™ 8400 Service Manual

Processor
Processor type	Intel® Pentium® 4 with HT Technology NOTE: Not all Pentium 4 processors support Hyper-Threading technology.
Level 1 (L1) cache	16 KB
Level 2 (L2 or L3) cache	512 KB, 1 MB, or 2 MB (depending on your computer configuration) pipelined-burst, eight-way set associative, write-back SRAM

Memory
Type	400- and 533-MHz DDR2 unbuffered SDRAM
Memory connectors	four
Memory capacities	128-, 256-, 512-, or 1-GB non-ECC
Maximum memory	4 GB NOTE: See "Addressing Memory With 4-GB Configurations" to verify the amount of memory available to the operating system.
BIOS address	F0000h

Computer Information
Chipset	Intel 925X Express or Intel 925XE Express
DMA channels	eight
Interrupt levels	24
BIOS chip (NVRAM)	4-Mb
NIC	Integrated network interface capable of 10/100/1000 communication.
System clock	800- or 1066-MHz data rate (depending on your processor)

Video
Type	PCI Express

Audio
Type	ADI 1980 AC'97 Codec NOTE: This audio type is present only on computers with integrated sound capabilities.

Expansion Bus
Bus type	PCI 2.3 PCI Express x1 and x16
Bus speed	PCI: 33 MHz PCI Express: x1 slot bidirectional speed — 500 MB/s x16 slot bidirectional speed — 8 GB/s
PCI
connector	three
connector size	120 pins
connector data width (maximum)	32 bits
PCI Express
connector	one x1
connector size	36 pins
connector data width (maximum)	1 PCI Express lane
PCI Express
connectors	one x16
connector size	164 pins
connector data width (maximum)	16 PCI Express lanes

Drives
Externally accessible:
	two 3.5-inch drive bays two 5.25-inch drive bays
Available devices	Serial ATA drive, floppy drive, Zip drive, USB memory devices, CD drive, CD-RW drive, DVD drive, DVD-RW drive, and DVD and CD-RW combo drive
Internally accessible:	two bays for 1-inch high hard drives

Connectors
External connectors:
Serial	9-pin connector; 16550C-compatible
Parallel	25-hole connector (bidirectional)
Video	15-hole connector
Network adapter	RJ45 connector
PS/2 (keyboard and mouse)	two 6-pin mini-DIN connectors
USB	two front-panel and six back-panel USB 2.0–compliant connectors
Audio	five connectors for line-in, line-out, microphone, surround, and center/Low Frequency Effects (LFE) channel; one front-panel connector for headphones
System board connectors:
Primary IDE drive	40-pin connector on PCI local bus
Serial ATA	four 7-pin connectors
Floppy drive	34-pin connector
Fan	two 5-pin connectors
PCI 2.3	120-pin connector
PCI Express x1	36-pin connector
PCI Express x16	164-pin connector
Telephony (TAPI)	4-pin connector

Controls and Lights
Power control	push button
Power light	green light — Blinking green in sleep state; solid green for power-on state. amber light — Blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (see "Power Lights").
Hard-drive access light	green
Link integrity light (on integrated network adapter)	green light — A good connection exists between a 10-Mbps network and the computer. orange light — A good connection exists between a 100-Mbps network and the computer. yellow light — A good connection exists between a 1 Gb (or 1000-Mbps) network and the computer. off (no light) — The computer is not detecting a physical connection to the network.
Activity light (on integrated network adapter)	yellow blinking light
Diagnostic lights	four lights on the back panel (See "Diagnostic Lights.")
Standby power light	AUX_PWR on the system board

Power
DC power supply:
Wattage	350 W
Heat dissipation	460.7 BTU/hr
Voltage (see the safety instructions located in the Product Information Guide for important voltage setting information)	fixed-voltage power supply — 110 V at 50/60 Hz manual selection and auto-sensing power supplies — 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 lithium coin cell

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

Environmental
Temperature:
Operating	10° to 35°C (50° to 95°F) NOTE: At 35°C (95°F), the maximum operating altitude is 914 m (3000 ft).
Storage	–40° to 65°C (–40° to 149°F)
Relative humidity	20% to 80% (noncondensing)
Maximum vibration:
Operating	0.25 G at 3 to 200 Hz at 0.5 octave/min
Storage	0.5 G at 3 to 200 Hz at 1 octave/min
Maximum shock:
Operating	bottom half-sine pulse with a change in velocity of 20 inches/sec (50.8 cm/sec)
Storage	27-G faired square wave with a velocity change of 200 inches/sec (508 cm/sec)
Altitude:
Operating	–15.2 to 3048 m (–50 to 10,000 ft)
Storage	–15.2 to 10,668 m (–50 to 35,000 ft)

Back to Contents Page