Dell OptiPlex SX280 - Manual (Page 81)

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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