Lan Status Led; Recovering The Operating System; Real Time Clock Reset - Dell Latitude 5480 Manual Del Propietário

LAN status LED

The RJ-45 connector includes two LEDs in the top corners. When the connection is oriented as shown below, the LED in the
top-left corner is the link integrity LED and the one in the top-right corner is the network activity LED.
The link integrity LED can display three colors: green, orange, and yellow. These colors indicate the three possible network
connection speeds: 10 Mbps, 100 Mbps, and 1000 Mbps, respectively. These LED states are shown in the image below. The
network activity LED is always yellow and blinks to indicate passing network traffic.
The LAN controller supports two status LEDS. A link LED displays the current transfer rate supported (10, 100, or 1000Mbps),
while the activity LED indicates when the card is receiving or transmitting data. The following table illustrates the LEDs'
operation.
Table 11. Status LEDs
LED
Activity
Link

Recovering the operating system

When your computer is unable to boot to the operating system even after repeated attempts, it automatically starts Dell
SupportAssist OS Recovery.
Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows operating
system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating
system. It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its
factory state.
You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into their
primary operating system due to software or hardware failures.
For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at
www.dell.com/serviceabilitytools. Click SupportAssist and then, click SupportAssist OS Recovery.

Real Time Clock reset

The Real Time Clock (RTC) reset function allows you to recover your Dell system from No POST/No Boot/No Power
situations. To initiate the RTC reset on the system make sure system is in a power-off state and is connected to power source .
Press and hold the power button for 25 seconds and then release the power button. Go to
NOTA: If AC power is disconnected from the system during the process or the power button is held longer than 40
seconds, the RTC reset process is aborted.
Status
Amber
Off
Green
Orange
Yellow
Description
The LAN controller is receiving or
transmitting data
The LAN controller is idle
The LAN controller is operating in 10
Mbps mode
The LAN controller is operating in 100
Mbps mode
The LAN controller is operating in 1000
Mbps (Gigabit) mode
how to reset real time
Solución de problemas
clock.
103