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Dell™ OptiPlex™ GX620
User's Guide

  Mini Tower Computer Specifications

Mini Tower Computer Specifications

Microprocessor
Microprocessor type	Intel® Pentium® or Celeron® processor
Level 1 (L1) cache	32 KB
Level 2 (L2) cache	512-KB, 1-MB, or 2-MB pipelined-burst, eight-way set associative, write-back SRAM

Memory
Type	533-MHz and 667-MHz DDR2 SDRAM
Memory connectors	4
Memory modules supported	256-MB, 512-MB, 1-GB, or 2-GB non-ECC
Minimum memory	dual-channel: 512 MB single-channel: 256 MB
Maximum memory	4 GB
BIOS address	F0000h

Computer Information
Chipset	Intel® 945 Express
Data bus width	64 bits
Address bus width	32 bits
DMA channels	eight
Interrupt levels	24
BIOS chip (NVRAM)	4 Mb
Memory speed	533 MHz and 667 MHz
NIC	integrated network interface with ASF 1.03 and 2.0 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) network and the computer. Off — The computer is not detecting a physical connection to the network.

Video
Type	integrated Intel Graphic Media Accelerator 950 or PCI Express x16 graphics card

Audio
Type	AC97, Sound Blaster emulation
Stereo conversion	16-bit analog-to-digital; 20-bit digital-to-analog

Controllers
Drives	four serial ATA controllers supporting one device each and one parallel Ultra ATA/100 IDE supporting two devices per channel with one channel

Expansion Bus
Bus type	PCI 2.3 SATA 1.0a and 2.0 USB 2.0 PCI Express 1.0a
Bus speed	PCI: 33 MHz SATA: 1.5 Gbps and 3.0 Gbps USB: 480 Mbps PCI Express x1: 5 Gbps PCI Express x16: 80 Gbps
Cards:	full-height cards supported
PCI:
connectors	two
connector size	120 pins
connector data width (maximum)	32 bits
PCI Express:
connectors	one x1 and one x16
power	10 W (x1) and 75 W (x16) maximum
connector size	36 pins (x1) and 120 pins (x16)
connector data width (maximum)	one PCI Express lane (x1) and 16 PCI Express lanes (x16)

Drives
Externally accessible	one 3.5-inch drive two 5.25-inch drive bays
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 VGA connector
Network adapter	RJ45 connector
Optional PS/2 with secondary serial port adapter	two 6-pin mini-DINs
USB	two front-panel and six back-panel USB 2.0–compliant connectors
Audio	three connectors for line-in, line-out, and microphone; two front-panel connectors for headphones and microphone
System board connectors:
Primary IDE drive	40-pin connector
Serial ATA	four 7-pin connectors
Floppy drive	34-pin connector
Serial	12-pin connector for optional second serial port card
Fan	5-pin connector
PCI 2.2	120-pin connector
CD drive audio interface	4-pin connector
Front panel	40-pin connector

Key Combinations
<Ctrl><Alt><Del>	If you are running Microsoft® Windows® XP, brings up the Windows Security window. If in MS-DOS® mode, restarts (reboots) the computer.
<F2> or <Ctrl><Alt><Enter>	starts embedded system setup (during start-up only)
<Ctrl><Alt><b>	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)
<F12> or <Ctrl><Alt><F8>	displays a boot device menu that allows the user to enter a device for a single boot (during start-up only) as well as options to run hard-drive and system diagnostics

Controls and Lights
Power control	push button
Power light	green light — Blinking green indicates sleep mode; solid green indicates 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 light	solid green light indicates network connection
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. See "Diagnostic Lights."
Standby power light	AUX_PWR on the system board

Power
DC power supply:
Wattage	305 W
Heat dissipation	1041 BTU/hr NOTE: Heat dissipation is calculated based upon the power supply wattage rating.
Voltage	manual selection power supplies—90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz
Backup battery	3-V CR2032 lithium coin cell

Physical
Height	41.4 cm (16.3 inches)
Width	18.5 cm (7.3 inches)
Depth	43.9 cm (17.3 inches)
Weight	12.34 kg (27.2 lb)

Environmental
Temperature:
Operating	10° to 35°C (50° to 95°F)
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 50.8 cm/sec (20 inches/sec)
Storage	27-G faired square wave with a velocity change of 508 cm/sec (200 inches/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)

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