Dell OptiPlex 390 User Manual

Power Button
Problem Description A possible system board resource and/or hardware
failure has occurred.
Troubleshooting
Steps
• Clear CMOS.
• Disconnect all internal and external peripherals,
and restart the computer. If the computer boots,
add the peripheral cards back one by one until you
find the bad one.
• If the problem persists, the system board / system
board component is faulty.
LED
Power Button
Problem
Description
Some other failure has occurred.
Troubleshooting
Steps
• Ensure that the display/monitor is plugged into a
discrete graphic card.
• Ensure that all hard drives and optical drive cables
are properly connected to the system board.
• If there is an error message on the screen identifying
a problem with a device ( hard drive), check the
device to make sure it is functioning properly.
• If the operating system is attempting to boot from a
device (optical drive), check system setup to ensure
the boot sequence is correct for the devices installed
on your computer.
Beep Codes
The computer can emit a series of beeps during start-up if the display cannot
show errors or problems. These series of beeps, called beep codes, identify
various problems. The delay between each beep is 300 ms, the delay between
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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