Dell Vostro 2420 User Manual

4
Diagnostics
If you experience a problem with your computer, run the ePSA diagnostics before contacting Dell for technical
assistance. The purpose of running diagnostics is to test your computer's hardware without requiring additional
equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the
diagnostics results to help you solve the problem.
Enhanced Pre-Boot System Assessment (ePSA) Diagnostics
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is
embedded with the BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of
options for particular devices or device groups allowing you to:
• Run tests automatically or in an interactive mode
• Repeat tests
• Display or save test results
• Run thorough tests to introduce additional test options to provide extra information about the failed device(s)
• View status messages that inform you if tests are completed successfully
• View error messages that inform you of problems encountered during testing
CAUTION: Use the system diagnostics to test only your computer. Using this program with other computers may
cause invalid results or error messages.
NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the
computer terminal when the diagnostic tests are performed.
1. Power-on the computer.
2. As the computer boots, press the <F12> key as the Dell logo appears.
3. On the boot menu screen, select the Diagnostics option.
The Enhanced Pre-boot System Assessment window is displayed, listing all devices detected in the computer. The
diagnostics starts running the tests on all the detected devices.
4. If you wish to run a diagnostic test on a specific device, press <Esc> and click Yes to stop the diagnostic test.
5. Select the device from the left pane and click Run Tests.
6. If there are any issues, error codes are displayed.
Note the error code and contact Dell.
Battery Status Lights
If the computer is connected to an electrical outlet, the battery light operates as follows:
• Alternately blinking amber light and white light — An unauthenticated or unsupported non-Dell AC adapter is
attached to your laptop.
• Alternately blinking amber light with steady white light — Temporary battery failure with AC adapter present.
• Constantly blinking amber light — Fatal battery failure with AC adapter present.
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Dell Vostro 2420 Specifications

General

Form factor	Clamshell
Product type	Laptop
Product color	Black, Silver
Bus type	DMI
Stepping	L1
Tjunction	90 °C
Processor cache	3 MB
Processor cores	2
Processor model	i3-3110M
System bus rate	5 GT/s
Processor family	Intel® Core™ i3
Processor series	Intel Core i3-3100 Mobile Series
Processor socket	BGA 1023
Processor threads	4
Processor codename	Ivy Bridge
Processor frequency	2.4 GHz
Processor cache type	Smart Cache
Processor lithography	22 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor operating modes	64-bit
ECC supported by processor	No
PCI Express configurations	1x16, 2x8, 1x8+2x4
Thermal Design Power (TDP)	35 W
CPU multiplier (bus/core ratio)	24
Maximum number of PCI Express lanes	16
Motherboard chipset	Intel® HM75 Express
Memory slots	2x SO-DIMM
Internal memory	2 GB
Memory clock speed	1600 MHz
Memory form factor	SO-DIMM
Internal memory type	DDR3-SDRAM
Maximum internal memory	8 GB
Memory layout (slots x size)	1 x 2 GB
LightScribe	-
AC adapter included	Yes
Power adapter depth	137.16 mm
Power adapter width	57.9 mm
Disc types supported	CD, DVD
Power adapter height	28.2 mm
HDD interface	SATA
Storage media	HDD
Optical drive type	DVD Super Multi
Total storage capacity	500 GB
Compatible memory cards	Memory Stick (MS), MMC, SD
Number of HDDs installed	1
Pixel pitch	0.252 x 0.252 mm
Display surface	Matt
Display diagonal	14 \
Display brightness	200 cd/m²
Display resolution	1366 x 768 pixels
Native aspect ratio	16:9
On-board graphics card ID	0x166
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 4000
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	650 MHz
On-board graphics card dynamic frequency (max)	1000 MHz
Speaker power	2 W
Front camera resolution (numeric)	1 MP
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Bluetooth version	4.0
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Charging port type	DC-in jack
USB 2.0 ports quantity	3
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0
Pointing device	Touchpad
Operating system installed	Ubuntu Linux
Processor code	SR0N2
Processor ARK ID	65700
Processor package size	37.5 x 37.5 (rPGA988B); 31 x 24 (BGA1023) mm
Supported instruction sets	AVX
Intel Identity Protection Technology version	1.00
Battery voltage	11.1 V
Battery capacity	2200 mAh
Battery life (max)	- h
Number of battery cells	6
AC adapter power	65 W
AC adapter frequency	50 - 60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	3.34 A
AC adapter output voltage	19.5 V
Cables included	AC
Operating shock	110 G
Operating altitude	-15.2 - 3048 m
Non-operating shock	160 G
Operating vibration	0.66 G
Non-operating altitude	-15.2 - 10668 m
Non-operating vibration	1.3 G
Storage temperature (T-T)	-40 - 65 °C
Operating temperature (T-T)	0 - 35 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 90 %
Sustainability certificates	EPEAT Silver, ENERGY STAR

Weight and Dimensions

Depth	244 mm
Width	342 mm
Weight	2190 g
Height (rear)	34.7 mm
Height (front)	31.5 mm