Dell OptiPlex 390 User Manual

Working on Your Computer 1
Before Working Inside Your Computer
Use the following safety guidelines to help protect your computer from potential
damage and to help to ensure your personal safety. Unless otherwise noted,
each procedure included in this document assumes that the following
conditions exist:
• You have read the safety information that shipped with your computer.
• A component can be replaced or--if purchased separately--installed by
performing the removal procedure in reverse order.
WARNING: Before working inside your computer, read the safety information that
shipped with your computer. For additional safety best practices information, see
the Regulatory Compliance Homepage at www.dell.com/regulatory_compliance.
CAUTION: Many repairs may only be done by a certified service technician. You
should only perform troubleshooting and simple repairs as authorized in your
product documentation, or as directed by the online or telephone service and
support team. Damage due to servicing that is not authorized by Dell is not covered
by your warranty. Read and follow the safety instructions that came with the
product.
CAUTION: To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface, such as a
connector on the back of the computer.
CAUTION: Handle components and cards with care. Do not touch the components
or contacts on a card. Hold a card by its edges or by its metal mounting bracket.
Hold a component such as a processor by its edges, not by its pins.
CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not
on the cable itself. Some cables have connectors with locking tabs; if you are
disconnecting this type of cable, press in on the locking tabs before you disconnect
the cable. As you pull connectors apart, keep them evenly aligned to avoid bending
any connector pins. Also, before you connect a cable, ensure that both connectors
are correctly oriented and aligned.
NOTE: The color of your computer and certain components may appear differently
than shown in this document.
7

Dell OptiPlex 390 Specifications

General

Tcase	72.6 °C
Bus type	DMI
Processor cache	6 MB
Processor cores	4
Processor model	i5-2400
System bus rate	5 GT/s
Processor family	Intel® Core™ i5
Processor series	Intel Core i5-2400 Desktop Series
Processor socket	LGA 1155 (Socket H2)
Processor codename	Sandy Bridge
Processor frequency	3.1 GHz
Processor cache type	Smart Cache
Processor lithography	32 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	3.4 GHz
Processor operating modes	64-bit
ECC supported by processor	No
Thermal Design Power (TDP)	95 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	31
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	1066, 1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s
Maximum internal memory supported by processor	32 GB
Product type	PC
Motherboard chipset	Intel® H61
Internal memory	4 GB
Memory channels	Dual-channel
Memory clock speed	1333 MHz
Memory layout (slots x size)	1 x 4 GB
HDD speed	7200 RPM
HDD interface	SATA III
Optical drive type	DVD-RW
Card reader integrated	-
Total storage capacity	500 GB
On-board graphics card	Yes
On-board graphics card ID	0x102
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 2000
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	850 MHz
On-board graphics card dynamic frequency (max)	1100 MHz
Number of displays supported (on-board graphics)	2
Operating system installed	Windows 7 Professional
USB 2.0 ports quantity	10
Firewire (IEEE 1394) ports	0
Chassis type	SFF
Product color	Black
Sustainability certificates	RoHS, ENERGY STAR
Power supply	240 W
Processor ARK ID	52207
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX
Intel Identity Protection Technology version	1.00

Weight and Dimensions

Depth	312 mm
Width	93 mm
Height	290 mm
Weight	5700 g