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OPERATIONAL DEFECT DATABASE
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Table of contents Wireless Networking How-to's and TroubleshootingDell Windows Support CenterMouse, Keyboard, or Touchpad Not Working CorrectlyThe Computer Stops Responding or troubleshooting slow performance issuesMicrosoft Windows Crashes, Stops, Restarts, or a Blue Screen AppearsTroubleshooting a Notebook LCD Screen That is Black, Blank or Hard to SeeHow to Turn the Wireless Antenna On and Off on a Dell ComputerInspiron 15 (7558) DriversUsing and Troubleshooting the Dell Webcam and Dell Webcam Central SoftwareDisabling or Enabling the TouchpadThe Computer Fails to Start or There is No Video Dell PC Diagnostics Quick Test and SupportAssist for PCs and TabletsSpecificationsPort LocationsResetting the System Setup (BIOS) to its Default SettingsComputer Component is not Recognized
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1. Wireless Networking How-to's and Troubleshooting For how-to's and troubleshooting information about wireless networking please go to the Dell Networking and Wireless Support Center.Back to Top 2. Dell Windows Support Center This link takes you to the Dell Windows Support Center. Select the operating system that you need help with.Back to Top 3. Mouse, Keyboard, or Touchpad Not Working Correctly See the following Dell Knowledge Base articles for information about using or troubleshooting your mouse, keyboard, or touchpad. Keyboard Usage and Troubleshooting GuideMouse Usage and Troubleshooting GuideTouchpad Usage and Troubleshooting Guide Back to Top 4. The Computer Stops Responding Press the Power button for at least 15 seconds to ensure the computer turns off.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 onPress the power button to see if the computer turns on and boots up ok, if not, see Dell Knowledge Base article Dell Computer Does Not Turn On or Boot Into Windows.Download and install SupportAssist. For more information about how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.Perform computer maintenance on your computer, for more information see Dell Knowledge Base article Optimization and Maintenance of Microsoft Windows or How to Troubleshoot Slow Performance Issues.Start attaching devices one at a time and test to see if the computer stops responding. Back to Top 5. Microsoft Windows Crashes, Stops, Restarts, or a Blue Screen Appears This link takes you to the Dell Knowledge Base article Computer restarts or shuts down intermittently, locks up, stops responding or an error occurs.Back to Top 6. Troubleshooting a Notebook LCD Screen That is Black, Blank or Hard to See For information about troubleshooting a laptop LCD Screen, see the Dell Knowledge Base article How to Troubleshoot Display or Video Issues on a Dell Laptop.Back to Top 7. How to Turn the Wireless Antenna On and Off on a Dell Computer Press and hold the key and then press the key. Repeating this will switch the wireless antenna off and on.For more information about how to turn the wireless antenna on and off on a Dell Computer, see Dell Knowledge base article How to Turn the Wireless Devices on a Dell Notebook On and Off.Back to Top 8. Inspiron 15 (7558) Drivers For information about the drivers available, browse to the Inspiron 15 (7558) Driver Page.This article provides information about how to download drivers for the Inspiron 15 (7558) computer, How to Download and Install Dell Drivers.Back to Top 9. Using and Troubleshooting the Dell Webcam and Dell Webcam Central Software For information about how to troubleshoot the webcam on your computer, see Dell Knowledge base article Using, Troubleshooting and Resolving Driver Issues on your Dell Webcam.Back to Top 10. Disabling or Enabling the Touchpad For information about how to turn the touchpad on or off, see Dell Knowledge base article Disabling or Enabling the Touchpad on a Dell Notebook. Back to Top 11. The Computer Fails to Start or There is No Video If you experience a situation in which the computer does not start at all or if it does turn on (lights turn on and fans are spinning), but the computer does not show any image, listen for a series of beeps during start-up. When beeping codes are heard, see (Table 1) to help troubleshoot the issue with your computer. BeepsDescriptionPossible Cause1BIOS ROM checksum in progress or failureSystem board failure, covers BIOS corruption or ROM errors.2No Memory (RAM) detectedMemory or Memory slot failure3 Chipset Error (North and South bridge error, DMA/IMR/Timer error)Time-Of-Day Clock test failureGate A20 failureSuper I/O chip failureKeyboard controller test failure System board failure4Memory read / write failureMemory failure5Real Time Clock (RTC) power failCMOS battery failure6Video BIOS test failureVideo subsystem failure7CPU Cache test failureProcessor failure8LCDLCD failure Table 1: Repetitive Beep CodesFor additional help with your computer, Contact Technical Support. When no beeping codes are heard, perform the following steps: 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 forthRemove the A/C adapter from the computer and unplug the adapter from the A/C outlet.Remove the battery, for more information about how to remove the battery, browse to the Inspiron 15 (7558) Online Support Page, click Manuals, click PDF next to Service Manual.Press the Power button for 15 seconds.Ensure the connections on the power cable and A/C adapter are firmly pressed together.Insert the A/C into the computer and a good A/C outlet.Press the power button to see if the computer turns on and boots up ok, if not, see Dell Knowledge Base article Dell Computer Does Not Turn On or Boot Into Windows.Turn the computer off and insert the battery back into the computer.Press the power button to see if the computer turns on and boots up ok, if not, see Dell Knowledge Base article How to Troubleshoot Dell Laptop Battery Issues.Start attaching devices one at a time and testing to see if the computer will turn on. Back to Top 12. Dell PC Diagnostics Quick Test and SupportAssist for PCs and Tablets The fastest and easiest way to identify and resolve the most common issues is by using our Dell PC Diagnostics quick test. This will either fix the problem automatically, or it will guide you through the steps to resolve the problem. Note: When the diagnostic identifies a failing part, depending on the failing part, we will immediately start the process for a free in-warranty replacement part. SupportAssist, previously called My Dell, provides computer updates, detects issues and sends you alerts based on your device, which makes solving and preventing problems easier than ever. This application gives you access to everything you must take the guesswork out of maintaining PCs and tablets. For more information such as how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page. When the computer cannot access the Internet, you can run the integrated diagnostics on your computer, for more information, see Dell Knowledge Base article, Run Built-In Diagnostics (ePSA) for Your System. Back to Top 13. Specifications For information about the Inspiron 15 (7558) Specifications, browse to the Inspiron 15 (7558) Online Manual Page, click PDF next to Specifications.Back to Top 14. Port Locations For information about the port locations, browse to the Inspiron 15 (7558) Online Manual Page, click PDF next to Quick Start Guide or Specifications.Back to Top 15. Resetting the System Setup (BIOS) to its Default Settings Option 1: Reboot the computer.When you see the Dell logo during POST, press the key to enter the setup screen.On the System Setup screen, press the key to move to the Exit menu.Press the key until Load Optimal Defaults is highlighted, and press the key.Press the key on Yes to Load Optimal Defaults and restart the computer. Option 2: Reboot the computer.When you see the Dell logo during POST, press the key to enter the setup screen.On the System Setup screen, press the key.Press the key on Yes to Load Optimized Defaults and restart the computer. Back to Top 16. Computer Component is not Recognized SupportAssist, previously called My Dell, detects issues and sends you alerts based on your device, This application gives you access to everything you must take the guesswork out of maintaining PCs and tablets. For more information about how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.Back to Top