- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
I may have addressed this question earlier. If your Dell shows absolutely no sign of life... no LEDs, no nothing and you know for certain the battery and/or power adapter is good then...
If you have access to a docking station (ANY Dell dock that will mate with the bottom connector on your D800), put the D800 in the dock and use the power button on the docking station.
If the laptop powers up, you may have a simply problem with the laptop "Press to turn on" button.
ABOVE THE LAPTOP KEYBOARD...
Use a small flat screwdriver blade to remove the Center Control Cover (just beneath the display/cover hinge and above the F1-F12 keys). Locate the cover's flat ribbon cable connector above the Page Up key. Pull off and carefully reinstall. Try the power button now. If it works, put everything back together. Otherwise seek profession help.
Bad news, this most likely indicates a problem in the charging circuit on the mainboard. To be sure, remove the battery and try again, if the same thing happens, then the problem is on the mainboard, if not, replace the battery. I have encountered this problem on an older Dell laptop before, removing the battery did not help and replacing the charger did not help. If the problem is on the mainboard, replacement is rarely practical. The cost of the board and the labor to replace it usually exceeds the cost of replacing the laptop.
this is usually a snap on plate you can check if you can find the edge. usually you need to remove first the top plate in order to get to the keyboard, this is a plastic that you need to twist up a bit on both ends ( on the top of the F1- to - F12 commands) then once you have removed this top plate you can have acces to the keyboard, either it is screwed or fastened only
it is not difficult, cheers
There's a second fan beneath the keyboard, you need to pry open the top panel where the power buttons are, then remove 2 screws for the keyboard to come off. When I did this, I saw the second fan with dust blocking it. I used a vaccum cleaner and my D800 works perfect again. One reason why the top left corner fan runs at full speed is that it reacts to the other fan being disabled, kind of like an emergency detour for the heatsink.