Specifications

Dell™ OptiPlex™ GX270 Systems Users Guide

Microprocessor
Microprocessor type	Intel® Pentium® 4 and Celeron®; design provides for future Dell-supported upgrades. A slower compatibility speed can be set through system setup.
Level 1 (L1) data cache	8 KB
Level 2 (L2) cache	128-KB, 256-KB, 512-KB, or 1-MB (depending on your computer configuration) pipelined-burst, eight-way set associative, write-back SRAM

Memory
Type	333- and 400-MHz DDR SDRAM
Memory connectors	small form-factor computer: 2 small desktop computer: 4 small mini-tower computer: 4
Memory capacities	128-MB, 256-MB, 512-MB, or 1-GB non-ECC
Minimum memory	128 MB
Maximum memory	small form-factor computer: 2 GB small desktop computer: 4 GB small mini-tower computer: 4 GB
BIOS address	F0000h

Computer Information
Chip set	Intel 865G
Data bus width	64 bits
Address bus width	32 bits
Interrupt levels	24
BIOS chip	4-MB
NIC	Gigabit integrated network interface with ASF 1.0 support as defined by DMTF Capable of 10/100/1000 communication Green — A good connection exists between a 10-Mbps network and the computer. Orange — A good connection exists between a 100-Mbps network and the computer. Yellow — A good connection exists between a 1 Gb (or 1000-Mbps) connection. Off — The computer is not detecting a physical connection to the network or the controller is disabled in System Setup.
System clock	800-, 533-, or 400-MHz quad-data rate; 200-, 133-, or 100-MHz (matches external bus speed)

Video
Type	Integrated chipset video or expansion AGP card

Audio
Type	AC97
Stereo conversion	16-bit analog-to-digital; 20-bit digital-to-analog

Controllers
Hard drive	dual-channel Serial ATA, supporting one device per channel Ultra ATA/100 dual-channel bus master EIDE, supporting one or two devices per channel, depending on your computer

Expansion Bus
Bus type	PCI 2.2 AGP 3.0 USB 2.0
Bus speed	PCI: 33 MHz AGP: 66 MHz
Small form-factor computer	low-profile cards are supported (card size =6.35 cm [2.5 inches] high by 16.76 cm [6.6 inches] long)
AGP
connector	one
connector size	172 pins
connector data width (maximum)	32 bits
bus protocols	8x/4x modes at 1.5 V
PCI
connector	one
connector size	120 pins
connector data width (maximum)	32 bits
Small desktop computer	two half-length PCI cards (card size = 10.67 cm [4.2 inches] high by 17.65 cm [6.95 inches] long) one low-profile AGP card (card size = 6.35 cm [2.5 inches] high by 16.76 cm [6.6 inches] long)
AGP
connector	one
connector size	172 pins
connector data width (maximum)	32 bits
bus protocols	8x/4x modes at 1.5 V
PCI
connectors	two
connector size	120 pins
connector data width (maximum)	32 bits
Small mini-tower computer	card sizes = three PCI slots support cards up to 27.9 cm (11 inches) long, and one PCI slot and the AGP slot support cards up to 22.9 cm (9 inches) long
AGP
connector	one
connector size	172 pins
connector data width (maximum)	32 bits
bus protocols	8x/4x modes at 1.5 V
PCI
connectors	four
connector size	120 pins
connector data width (maximum)	32 bits

Drives
Externally accessible:
Small form-factor computer	one bay for a slimline floppy drive one bay for a slimline CD/DVD drive
Small desktop computer	one 3.5-inch bay one 5.25-inch bay
Small mini-tower computer	two 3.5-inch drive bays two 5.25-inch drive bays
Internally accessible:
Small form-factor computer	one bay for a 1-inch-high hard drive
Small desktop computer	one bay for a 1-inch-high hard drive
Small mini-tower computer	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)	6-pin mini-DIN
USB	two front-panel and six back-panel USB 2.0–compliant connectors
Audio	three connectors for line-in, line-out, and microphone; one front-panel connector for headphones
System board connectors:
Primary IDE drive	40-pin connector
Secondary IDE drive	40-pin connector
Serial ATA	7-pin connector
Secondary Serial ATA (not available on the small form-factor or small desktop computers)	7-pin connector
Floppy drive	34-pin connector
CD drive audio interface	4-pin connector
Serial	12-pin connector for optional 2nd serial port card
Fan	3-pin connector
PCI 2.2	120-pin connector
Front audio	10-pin connector
Front panel	34-pin connector

Key Combinations
	restarts the computer
<>	toggles microprocessor speeds on 101-key keyboard (in MS-DOS® real mode only)
<#>	toggles microprocessor speeds on 102-key keyboard (in MS-DOS real mode only)
or	starts embedded system setup (during start-up only)
	automatically starts the computer from the network environment specified by the remote boot environment (PXE) rather than from one of the devices in the system setup Boot Sequence option (during start-up only)
or	displays a one-time boot menu that lets the user enter a device for a single boot (during start-up only)
	launches the utility partition (if installed) during computer start-up
	launches the hard-drive diagnostics utility during computer start-up

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 Problems")
Hard-drive access light	green
Link integrity light (on integrated network adapter)	green light for 10-Mb operation; orange light for 100-Mb operation; yellow light for a 1000-Mb (1-Gb) operation
Activity light (on integrated network adapter)	yellow blinking light
Diagnostic lights	four lights on the back panel
Standby power light	AUX_PWR on the system board

Power
DC power supply:
Wattage	small form-factor computer: 160 W small desktop computer: 210 W small mini-tower computer: 250 W
Heat dissipation	small form-factor computer: 455 BTU/hr small desktop computer: 500 BTU/hr small mini-tower computer: 910 BTU/hr
Voltage	90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz
Backup battery	3-V CR2032 lithium coin cell

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
Operating	20% to 80% (noncondensing)
Storage	5% to 95% (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 40-G half-sine pulse with a change in velocity of 20 inches/sec (50.8 cm/sec)
Storage	105-G pulse with a change in velocity of 50 inches/sec (127 cm/sec)
Altitude:
Operating	–15.2 to 3048 m (–50 to 10,000 ft)
Storage	–16 to 10,600 m (–50 to 35,000 ft)

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