When I try to power up the laptop all the lights come on as normal but go out after about 3 seconds. The power light remains on but nothing happens. This problem started about 6 months ago. When it first started if you tried a number of times it would then start ok, but it has now got to the point where it will not start at all. I have tried stripping the computer down and reseating everything including the CPU, swapped memory cards around, tried with and without the battery installed and disconnected every device one at a time, all with no success. If I hold down the Fn key when powering up, the 3 lock keys indicate that there is a cpu error code. This code was evident when the computer was intermittently working. Has anyone else had a similar problem or any ideas of what could be wrong? I am reluctant to purchase a replacement CPU without knowing for sure if this will solve the problem. Thankyou in advance.
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The user manual will supply an in-depth explanation of the led-indicators, aswell as there are normally small icons assigned to each light, sometimes engraved in the plastics, normal lights to be active at average usage are the Power led indicator, will glow as long as device is turned on, the Wireless led indicator will glow when the wireless network module is active, the CPU led indicator will flash occasionally when system is idle, and rapidly when system is active under load, and the Battery led indicator will be active when device is running on battery power. When device goes into sleep or hibernate mode the sleep led indicator might continuously glow or slowly switch on & off varying between systems.
does the machine work at all? at best its faulty charger , I recall a laptop sometime ago I worked on had a fight with what looked like , 3 pints of milk and a cup of coffee showed same syptoms, could be faulty MOBO
1. Reseat the battery. 2. Remove All External Components 3. Check the battery connectors on the battery and the system. Examine the connector on the battery and the system. Make sure that there is no physical damage and that it is clear of debris. 4. Remove All External Components 5. Try a known-good battery in the system, if available.
1. Shut down the system, remove the battery and the Ac adapter from the computer.
2. Press the power on button for 10 seconds
3. Reinsert the battery
4. Power on the computer and as soon as you see the dell logo press the f2 key a couple of time
5. Using the up down arrow keys , go to the option that says battery info. If there is an error message listed kindly post it back
6. Otherwise shut down the computer reconnect the ac.adapter and check if the problem is solved
Also the battery has a diagnostic lights on it , remove the battery from the computer and press the button on the battery a set of lights would glow. If they are steady and come in a series the battery is good , If some lights are missing the battery is bad and may need replacement
Maybe there are some problem in your start button (the button wire connect to mainboard is Loosening.
Please press the start button for about 3-4 seconds then see it would start. Always it may solve the problem, this happend to my inspiron 6400 too, after used for years the start button failure. It shows only power lamp lights green but the other light cant light red.
If no, maybe your must change a power supply, as the lower volt current cant start all the device.