My laptop comes on with dell logo screen then after maybe 6% of the bar goes across it stop. I did a boot diagnostic by holding down the FN key and cutting it on and now it show the 3 light. #1 (cap lock light) is off , #2 (num lock light) is is on , #3 (stroll lock light) is blinking. do anyone know what this mean? Dell tech-support (in india or where ever) don't know.
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run the dell diagnostic by turning the laptop on and tapping F12 key when you see the Dell logo
keep pressing F12 to enter the Boot Menu
* When the boot device list appears, highlight Diagnostics and press Enter
* The computer begins to run the Pre-boot System Assessment, a series of embedded diagnostics that perform initial testing on your system board, keyboard, hard drive, and display
* If the Pre-boot System Assessment completes successfully, you receive the message Booting Dell Diagnostic Utility Partition
* Press any key to continue
* Press any key to start the Dell Diagnostics from the Diagnostics utility partition on your hard drive
* After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the option you want to run -
Express Test = Performs a quick test of devices. The test typically takes 10 to 20 minutes and requires no interaction on your part
Extended Test = Performs a thorough check of devices. The test typically takes 1 hour or more and requires you to answer questions periodically
Custom Test = Tests a specific device. You can customize the tests to be run
Symptom Tree = Allows you to select tests based on a symptom of the problem you are experiencing
* When you have finished running a test, close the screen to return to the Main Menu screen. To exit the Dell Diagnostics and reboot the computer, close the Main Menu screen
during the test it will beep and display colored bars then ask your if the colored bars were displayed. to press Y for yes and N for no
this test the graphics/video chip on the computer to see if the hardware is working.
You can also connect it to an external monitor like a monitor that comes with a pc.Then press and hold the "FN" key and press the F8 (CRT/LCD) key to toggle the external monitor. if the image is displayed in the monitor then it can be a lcd screen or lcd inverter in laptop.
Shut the system down by holding the power button for 5 seconds or more. Turn the system back on, as soon as the blue dell logo goes away tap f8 on the keyboard. This should bring you to a menu from which you can select "safe mode". See if it starts in safe mode. If so, troubleshoot further from there. If not press f12 on the dell logo and choose diagnostics. Run a quick scan, see if any errors are returned for the hard drive.
First I would press (I think) F11 for the boot device. In the Dell boot menu, you will have the option of running diagnostics. Try that. You can see the Dell splash screen on startup and you can see the options letting you choose what to do. So, you can be pretty sure your CPU. motherboard, and video are OK. The next suspect might be the hard drive or the files on the hard drive. But if you don't get a "no boot device" message, it sees the hard drive. I've also experienced a booting problem if the CD goes bad. So--first run the diagnostics. Then open the case and disconnect the cable from the CD and try booting. I am assuming (perhaps incorrectly) that you have pushed F8 key after computer startup to see if you can start the computer in safe mode.
When you say screen goes very dark when it booted to windows so it means that when you turned on the laptop when the dell logo flashes the screen was fine? if thats the case could you please try this. after turning on the laptop you will see the dell logo flashes immediately keep tapping on F2 and then it will show you the BIOS setup utility, please check if in BIOS setup display goes dark as well. If yes then try this, after turning on the computer when dell logo flashes keep tapping on F12 to boot menu then select utility partition to run the diagnostics. Please run test on the LCD check if display goes black when running the LCD test. Then try this when you sees the dell logo keep tapping on F8 to boot in safe mode check if in safe mode display goes very dark. Try this too, boot in F8 then select last known good configuration check if the settings on your display will be fix. If you can boot to safe mode no problem then uninstall the display or video driver. then restart computer.
You can also try to connect an external monitor if you have one just try to isolate if issue is on the LCD or the video card. If the display is dark as well in external monitor then video card needs to be reseated if fails then replaced. In situation like this most video cards is integrated to the motherboards. So replace motherboard.
ur unit is overheating turn off and unplug and let cool down,clean vents around fan intake (under unit) and around top each side of keyboard when cool enough plug back in and listen for fan operation while booting up if no fan it may be stuck or burnt up and may need replacement but ur biggest problem will be the hard drive if it was overheated for to long could or is damaged good luck hope ur lucky and that it just got hot
When you see the Dell logo, it means the system is booting and you see the splash screen that is generated on the motherboard. Apparently this is where it is stopping. Here's what I would do: First when you boot the computer, press F12 to get the boot options. Choose the diagnostics and run the system diagnostics. You can also try to press F8 to get the computer into safe mode, but I'm thinking if you see nothing other than the splash screen, that may not work. If you are presented with Windows boot options, choose safe mode and do a system restore. The last thing you can do if you have the Dell system recovery disk is try to do a repair from that CD if it allows you to do so.