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Technical Specifications

Dell™OptiPlex™SX280User'sGuide

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Processor

Processor type

Intel®Pentium®4 and Celeron®(when available)

processors. Design provides for future processor

upgrades. Supported processor upgrades are

available from Dell.

Level 1 (L1) cache

8 KB

Level 2 (L2) cache

256 KB or 1 MB, depending on processor

Memory

Architecture

400-MHz DDR2 SDRAM

Dual in-line memory module (DIMM) sockets

two (non-ECC only)

DIMM capacities

128, 256, 512 MB, 1 GB

Minimum RAM

 256 MB (dual channel mode)

128 MB (single channel mode)

Maximum RAM

2 GB (dual channel mode)

BIOS address

F0000h

Computer Information

Computer chip set

915G

Data bus width

64 bits

Address bus width

32 bits

Interrupts

23

Computer BIOS

4-Mb flash chip

System bus speed

800- or 533-MHz quad-data rate; 200- or 133-MHz

clock (matches external bus speed)

Network interface controller

Gigabit integrated network interface with ASF 1.03

support as defined by DMTF

Capable of 10/100/1000 communication

Audio

Audio type

AC97, Sound Blaster emulation; optional internal

speaker

Audio controller

Integrated AC97 Codec

Stereo conversion

16-bit analog-to-digital; 20-bit digital-to-analog

Interfaces:

Internal

PCI bus/AC97

External

stereo line-in minijack and line-out minijack on the

rear I/O panel; headphone and microphone

connectors on the front panel

Video

Video type

integrated DVI-I

Video controller

integrated Intel 2D/3D graphics accelerator

Expansion Bus

Bus type

USB 1.1 and 2.0

Memory module connector size

DDR2 — 240 pins

Drives

Externally accessible bay

one bay for a Dell IDE or USB D-module portable

device

Internally accessible bay

one bay for a Serial ATA hard drive

Connectors

Externally accessible:

Serial (data terminal equipment [DTE])

one 9-pin connector; 16550-compatible on the back

I/O panel

Parallel

one 27-hole connector (bidirectional) on the back I/O

panel

Video

DVI-I connector on the back I/O panel

Integrated network adapter

RJ45 connector on the back I/O panel; 10/100/1000

Audio

Green line-out and blue line-in connectors on the

back I/O panel; microphone and headphone