sounds like the motherboard may be bad

Greetings,
I would first check the power supply with a VOM. Output should be about 19v.
Tek

well I am new here, but i have the same problem here with my dell e1505. It turn on and turns off automatically. I think it is going to hiber mode some how because a replaces ram and tested another battery. Any one have instructions on how to open this type of dell or would this sensor be in the same place??

ty in advanced

Greetings,
If you are running from the power supply, you can turn off hibernate in the control panel under Power Management. Also, change the profile from Laptop to Always On. This will prevent the system from shutting down the computer. I see this problem as a Windows System problem and not a hardware problem. I would avoid hacking the internal electronics since making the power management settings have the same effect. If the profile is set to always on then the system won't look at the switch condition.
Tek

Hello, my Inspiron had many thermal shutdowns, so I decided to clean the dust from the fan and replace the thermal grease (again).

Toke the CPU and fan out, cleaned them all and reassembled. But now it will not boot up!

When I press the power button the power led turns on (green), the HD led blinks for a second and I can hear a short sound from the HD motor, the fan turns on. The display will not turn on, and there is no sound from the speakers. After exactly 30 seconds then fan turns off, but the power led is still on.
Pressing the CD eject button will open the CD tray (even after the 30 seconds).

If I plug the charger, the battery led will do one short green blink every 9 seconds.

After reading this tread, I took the touch pad + magnetic switch connector out, but nothing changed.

The memory stick is good (checked with a friend laptop).
I tried many times to reinstall the CPU with no success.

The totally weird thing is if I take out the CPU and memory stick and then turn the pc on, nothing changes, still only power led and fan working for 30 seconds.

Does any body have a clue?
Is there any error beeps / led code for the Inspiron?

Acakuo

i have a similar problem but in my own case, only the battery LED keeps blinking orange and green. and the system doesnt power up

I have a Inspiron 710m unit, that is having problems for turning on, I have to insist a lot then it suddenly start booting and every seems perfect.

I will try to check if it is a touchpad issue as well, because I can not imagine what else can be, I am sure is not the button nor the battery, I was thinking today maybe it is the cmos battery, but computers turn on even if the battery is depleted... So I will try to disconnect the touchpad, the thing I don't understand is why do I have to break anything, I would think that unpluggin or replacing the touchpad would do the trick...

I followed all of the recommended steps to get to the touch pad - Unplugged - and plugged it back in. Reinstalled everything that I removed. Then hit the power button! came up with no problems I powered it off and left the lid open and rebooted it with no problems Powered it off and left the lid open. My wife came home and saw that it was opened and closed it So - when I opened the lid and hit the power button - No power up So - I am trying to determine if I need a new touch pad? That seemed to work when I had uplugged it / and replugged it back in. I did not see where the sensor or magnets where on the lid? so when you close the lid when it's powered on it would go into hibernate mode Has someone taken pictures of this? I've looked thru the factory service manual and do not see it called out anywhere in the documentation

Update - Located a replacement Touch Pad on E-bay for $2.99 plus shipping of $7.99 - Part arrived and I removed old/original - and installed the new one! Installed everything back into lap top - powered system on with no problems! fixed my problem. Thanks for the tips on troubleshooting my problem - It resolved them and I now have a lap top again.

I also had the inspiron 1100 not turning on problem. I ALSO was wondering about the lid switch being as the thing had died such a quiet death while sitting quietly in a laptop bag in my office. But alas, no lid switch to be found.

After reading this thread, I thought hmmm, what's the chances that if I break this puppy open and accidentally jam a flathead screwdriver through the CPU, the network admin at work will be happy with me having taken the initiative in the repair and promptly order me a new notebook?

The chances of that seemed slim so I came up with an alternate plan. Figured out where the latch magnet switch must be by sticking a screw to the magnet above the lcd and closing the lid, went down to my cellar, grabbed a rare earth magnet I had farmed out of a dead hard drive long ago, and held it above the switch. Wallllar, she boots!!!

Funny thing is, we had 2 Dell notebooks at my last job with exactly the same issue, and both were considered DOA and stripped LMAO

Have a look here: Tutorial: No POST (Power On System Test)

hi to all i have a dell inspiron 1100 that is completly dead. it has the battery, but when I plug the ac adapter that I have which is pa-6 and the laptop original is a
pa-9. anyway, it does not get any power at all. there is no green lights or orange no lights at all. I was wondering if anyone can guide me through the procedures. and how to trouble shoot this dead machine any help would be appreciated in advance. thanks.

Umm there's a guide just above your post !
But I would suggest you test with another AC power Adapter

I have followed you way to sor out my Dell Inspiron 1100 which was did, but your way NEVER worked, Now I don't know if I changed the motherboard I might need to change the touchpad.....

Thanks for the update
Even though the guide has helped thousands. If you cannot get any resolution you may need to start replacing hardware