Hi Tarnsocke,

Welcome to the Community,

Apart from what Dell Kaushal P has suggested you may also try reseating the memory module. An incorrectly seated memory module may cause a no-POST situation and not display an LED error code. If the system has power but nothing else happens, reseat the memory modules in the unit.

For steps to remove and reseat memory modules refer to this link :

<ADMIN NOTE: Broken link has been removed from this post by Dell>

Let us know if you need more help.

Thank You

Hi

Welcome to the community 

 I would like to know what’s the status of the power light, when you hit the power button. Is it solid green, orange or white? Does it stay on?

In case the power LED is solid green what’s the status of the locks LEDS (like caps lock):

If the system has power, however, is not performing a POST, check if the keyboard status lights flash to indicate a successful POST. No video or if the keyboard status lights are lit in a sequence, that indicates a system problem. Please refer to the image below:

The easiest way to run the test is to press and hold the FN key (function key) and then press the power button once and keep holding the FN key till you see the test running on the screen:

http://dell.to/oe1Qg1

 While running the test if you hear the beep code 3-3-3 or 3-3-4. It means the lcd test has passed. There are no issues with lcd

 Feel free to reply

Thanks & Regards
Kaushal P
#iworkfordell

First of all many thanks for trying to help.

If i turn on the notebook the power LED goes green (stays green). All other LEDs like caps lock stay off.

I've tried your solution with  holding the Fn-key before turning the notebook on. It took no effect (like before just the starting fan, DVD, power LED).

I've also tried running it without memory-modules. same thing. There even wasn't  a POST-beep.

So far it seems like the mainboard is busted.

best regards,

Viktor

Thanks a lot for your both help. This weekend I will take apart the whole laptop an see if something was incorrectly  seated/connected. Otherwise I'll try to buy a replacement for the mainboard.

Again, thanks!

my problem with a Dell Inspiron 1501 is similar to the one described above with the one important difference, that I can hook up an external display and upon hitting Fn + F8 I get a good display. The system seems to be working fine.

When I do the test (Power button + Function key) the lock LEDs are flashing repeatedly, there is no beeping and ultimately the system stays on whith the power LED solid green and nothing else.

Thus the mainboard seems to be working, the display doesn't. Is there a magic way to turn the display on? I have tried to reseat the memory and the the HDD. I have also tried to remove any power and hit the power button several times like suggested in another post on the internet. No avail.

With the external monitor on and using the display manager, The LED display is detected but can't be activated.

Help is appreciated

Is there even a very faint display on the internal LCD (look under a very bright light)?

That suggests a bad backlight or inverter -- you can remove the inverter (small board behind the screen) and replace it with a new one.  If that doesn't fix the problem, replace the display panel itself -- and if that doesn't fix it, the problem is with the mainboard.