Dell G15 5520 Usage and Troubleshooting Guide

When the computer stops responding or you are troubleshooting slow performance issues, perform the following steps:

1. Press the Power button for at least 15 s to ensure that the computer turns off.
2. Disconnect all devices including the keyboard, mouse, and external monitor. Peripherals also include external storage devices such as flash drives, USB devices, printers, cards so forth
3. Press the Power button to see if the computer turns on and boots correctly. If not, refer to Dell Knowledge Base article Computer Does Not Turn on, or is Stuck on the Dell Logo Screen.
4. When the computer does boot up correctly, download and install SupportAssist. For more information about how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.
5. Perform computer maintenance on your computer, for more information refer to Dell Knowledge Base article Optimization and Maintenance of Microsoft Windows or Troubleshooting Slow Performance Issues.
6. Start connecting devices one at a time, and check to see if the computer continues to respond.

This link takes you to the Dell Knowledge Base article Microsoft Windows Locks Up or an Error Occurs.

For information about the drivers available, browse to the G15 5520 Drivers Page.

This article provides information about how to download drivers for Dell computers: How to Download and Install a Driver.

Refer to the Dell Knowledge Base article Troubleshooting Touchscreen Issues in Microsoft Windows, for information about resolving Touchscreen issues.

When you experience a situation in which the computer does not start at all. Or it does turn on. (Lights turn on, and fans are spinning.) If the computer does not show any image, look at the Battery LED (on the left side of the computer, Figure 1) for a blinking amber and white pattern. You can determine the failures that are listed in Table 1.

Figure 1: Battery Charge and Status LED Location

The computer will not shut down when displaying the Diagnostic Error Codes.

Diagnostic Error Codes will always supersede any other use of the LED. For instance, on Notebooks, battery codes for Low Battery or Battery Failure situations will not be displayed when the Diagnostic Error Codes are being displayed.

Table 1: Repetitive Battery LED Codes

For additional help with your computer, please Contact Technical Support.

1. Press the power button for at least 15 s to ensure that the computer turns off.
2. Disconnect all devices including the keyboard, mouse, and external monitor. Peripherals also include external storage devices such as flash drives, USB devices, printers, cards, so forth
3. Remove the AC adapter from the computer and unplug the AC adapter from the electrical outlet.
4. Ensure the connections on the power cable and AC adapter are firmly pressed together.
5. Insert the AC into the computer and a good electrical outlet (not on a surge protector or power strip).
6. Press the Power button to see if the computer turns on and boots correctly. If not, refer to Dell Knowledge Base article Computer Does Not Turn on, or is Stuck on the Dell Logo Screen.
7. Start attaching devices one at a time and testing to see if the computer will turn on.

There are times when changes to the settings in the System Setup (BIOS) prevent the computer from booting into Windows or connect to the Internet. Setting the BIOS back to its defaults may help fix these issues.
 

1. Reboot the computer.
2. When you see the Dell logo during POST, press the F2 key to enter the setup screen.
3. On the System Setup screen, click Load Defaults.
4. Ensure that BIOS Defaults is selected and click OK (when asked).
5. Click OK on the Warning window (when asked).
6. Click Exit, the computer restarts.

For help with resolving USB port issues, refer to Dell Knowledge Base article: How to resolve USB port issues.

For information about and help with resolving Hard Drive issues, refer to the Dell Knowledge Base article: Understanding and Troubleshooting Your Hard Drive.

For information about and help with resolving Audio issues, refer to the Speakers and Headphones Support site.

The power button LED indicator light is on the palm rest next to the keyboard at the top-right side Figure 1. Refer to Table 1 for the description of the LED.

Figure 1: Power LED Location

Table 1: Power LED State

• S0 (ON)—System is turned on.
• S4 (Hibernate)—The computer consumes the least power compared to all other sleep states. The computer is almost at an OFF state, expect for a trickle power. The context data is written to hard drive.
• S5 (OFF)—The computer is in a shutdown state.

The battery charge and status LED indicator are at the left side of the computer Figure 2. Refer to Table 2 for the description of the LED.

Figure 2: Battery Charge and Status LED Location

Table 2: Battery Charge and Status LED Indicator

• S0 (ON)—System is turned on.
• S4 (Hibernate)—The computer consumes the least power compared to all other sleep states. The computer is almost at an OFF state, expect for a trickle power. The context data is written to hard drive.
• S5 (OFF)—The computer is in a shutdown state.

For additional information about and help with resolving Battery issues, refer to the Battery Support site.

To access the Dell Security and Virus Support Page click on the following link:

• Dell Security and Virus Support page

Your computer comes preinstalled with an anti-virus program. For more information, refer to the Dell Knowledge Base article Useful Information about the third-party anti-virus programs that ship with a Dell PC.

More information about Viruses, Spyware, and Malware can be found at the following links:

• What are the different types of Viruses, Spyware and Malware that can infect my computer
• Protect your computer or remove virus, spyware, or other malware in Microsoft Windows.
• How to Identify and Repair Malware or Virus Infected Systems