My dell latitude wont start no fan just green light then nothing
When i try to turn on the laptop i just get a green light no power to fan
or anything.I was wondering if someone could help me?I grounded myself and took it apart,I have held the power button for over 40 seconds and tried i have taken out the battery and ac and waited,i have tried the battery seperate from the ac and vise versa,i need help is there somthing i can check on the board?I do have it completly apart at the moment,
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I found this online. Many people have said this worked for them but you need to make sure you follow the instructions carefully.
Step By Step:
(Disconnect all cables, Inc the power)
1. Open the case of your Dell Pc
2. On the power supply box (top right) find the GREEN wire
(The green wire will almost always be the power switch on all Pc's)
3. Cut it at around the middle
4. Strip Both Ends
5.Find a long enough piece of wire that will reach to the front of the pc
6. Solder the GREEN wires back together but putting your seperate peice of wire inbetween them
7. Tidy them up with zip ties and shrink tubing (Electrical Tape if not)
8. Plug the power cable into the pc
9. Hold the wire onto the chassis of the pc
10. If the fans start at full speed, press the power button and let the wire off
11. your pc should be running as normal.
Remove the main battery and try again, no change! remove the ram memory one at a time, testing as you go making sure there is one ram stick in the slot at all times. If none of these work, the motherboard is the likely problem and you will need a technician to access.
Sounds like a motherboard issue. The sound you are hearing is probably the fan running so your board may not be totally shot. Generally, when the computer won't start at all that is the issue. The only other thing I can think of is the power supply but your fan probably wouldn't run either.
remove all attached devices like printers or flash drives. remove battery and power on using ac adapter only. if it still wont work, try another good ac adapter. make sure ac adapter light is on. if it still shows the power light on and nothing else, replace motherboard.
If the laptop is not powering on either with the battery or the Ac adapter. Its a bad motherboard and would require repair. You can contact Dell Out of warranty repairs and they would give you an estimate of the same.
get to the main board of ur system there is a jumper near the battery . change its position while power is off and get it back to its previous position. this way u will reset cmos to default. if the computer starts hit delete to enter setup and load system defaults.save changes then exit.
ps: defected processor could be the cause
I have the exact same issue. It's not the processor. If you have you power supply tested, you will probably find that it's not working anymore. The green light still comes on when plugged in, but it's not sending the "charge" to the notebook.
I have this issue with a couple of C640's. I've tested the machine by charging the battery in another (Pentium 3 Dell C600), then putting it back into the broken machine... woohoo it works.
Unfortunately I can't figure out why the power supply's keep on busting, I don't think that the power-supplies are faulty, or maybe they just get old, don't know, but the most obvious problem is probably something with the mainboard, which really sux.