Technical specifications – Dell OptiPlex SX280 User Manual
Page 81

Back to Contents Page
Technical Specifications
Dell™ OptiPlex™ SX280 User's Guide
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