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, refer to (Table 1) to help troubleshoot the issue with your computer.
| Beeps |
Description |
Possible Cause |
| 1 |
BIOS ROM checksum in progress or failure |
System board failure, covers BIOS corruption or ROM errors. |
| 2 |
No Memory (RAM) detected |
Memory or Memory slot failure |
| 3 |
- chipset Error (North and South bridge error, DMA/IMR/Timer error)
- Time-Of-Day Clock test failure
- Gate A20 failure
- Super I/O chip failure
- Keyboard controller test failure
|
System board failure |
| 4 |
Memory read / write failure |
Memory failure |
| 5 |
Real Time Clock (RTC) power fail |
CMOS battery failure |
| 6 |
Video BIOS test failure |
Video subsystem failure |
| 7 |
CPU Cache test failure |
Processor failure |
| 8 |
LCD |
LCD failure |
Table 1: Repetitive Beep Codes
When no beeping codes are heard, perform the following steps:
- Disconnect all external peripherals including the keyboard, mouse, and external monitor. Peripherals also include external storage devices such as flash drives, USB devices, printers, cards etc.
- Remove the A/C adapter from the computer and unplug the adapter from the A/C outlet.
- Remove the battery, for more information on how to remove the battery, browse to the Inspiron 7737 Online Manual Page, and click Owner's Manual.
- Press the Power button for 15 seconds.
- Make sure the connections on the power cord 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, refer to Dell Knowledge Base article Computer Does Not Turn on, or is Stuck on the Dell Logo Screen.
- 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, refer to Dell Knowledge Base article Check the Battery.
- Start attaching devices one at a time and testing to see if the computer will turn on.
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- Press the Power button for at least 15 seconds to make sure the computer turns off.
- Disconnect all external peripherals including the keyboard, mouse, and external monitor. Peripherals also include external storage devices such as flash drives, USB devices, printers, cards etc.
- Press the power button to see if the computer turns on and boots up ok, if not, refer to Dell Knowledge Base article Computer Does Not Turn on, or is Stuck on the Dell Logo Screen.
- Download and install SupportAssist. For more information on how to obtain and install SupportAssist, browse to the SupportAssist page.
- Perform system maintenance on your computer, for more information refer to Dell Knowledge Base article Optimization and Maintenance of Microsoft Windows.
- Start attaching devices one at a time and test to see if the computer stops responding.
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For information on troubleshooting a notebook LCD Screen, refer to the Dell Knowledge Base article Troubleshooting a Notebook LCD Screen That is Black, Blank or Hard to See.
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For information on the Inspiron 7737 Specifications, browse to the Inspiron 7737 Online Manual Page, click Specifications.
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For information on the port locations, browse to the Inspiron 7737 Online Manual Page, click Specifications.
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Option 1:
- Reboot the computer.
- When prompted during POST, press the <F2> key to enter the setup screen.
- On the System Setup screen, press the <Right Arrow> key to move to the Exit menu.
- Press the <Down Arrow> key until Load Setup Defaults is highlighted, and press the <Enter> key.
- Press the <Enter> key on Yes to Load defaults configuration now and the computer will restart.
Option 2:
- Reboot the computer.
- When prompted during POST, press the <F2> key to enter the setup screen.
- On the System Setup screen, press the <F9> key.
- Press the <Enter> key on Yes to Load defaults configuration now and the computer will restart.
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For how-to's and troubleshooting information on wireless networking please visit the Dell Networking and Wireless Support Center.
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- Press the Wireless/Airplane mode key. Repeating this will toggle the wireless antenna off and on.
For more information on how to turn the wireless antenna on and off on a Dell Computer, refer to Dell Knowledge base article How to Turn the Wireless Antenna On and Off on a Dell Computer.
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Note: For computers running Windows 8 you will need to go to the desktop screen first.
- Double click the Touchpad icon in the system tray
- Disable it on the application window by clicking Touchpad On/Off.
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Refer to the following Dell Knowledge Base articles for information on how to use or troubleshoot mouse, keyboard or touchpad issues.
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For information on how to troubleshoot the webcam on your computer, refer to Dell Knowledge base article Using and Troubleshooting the Dell Webcam and Dell Webcam Central Software.
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SupportAssist, previously called My Dell, detects issues and sends you alerts based on your device, This application gives you access to everything you need to take the guesswork out of maintaining PCs and tablets. For more information on how to obtain and install SupportAssist, browse to the SupportAssist for PCs and tablets page.
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For information on the 7737 drivers available, browse to the 7737 Driver Page.
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This link takes you to the Dell Windows Support Center. Select the Operating System you need help with.
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