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Inspiron 17R SE 7720 turn on problems
Hi
When I push the power button there is a sound of the fan, the keyboard lights turn on and there is no Dell sign on the screen. I have to turn off the computer and try one or more times.
Afterwards there are no problems with using the laptop.
I tried to replace the Ram, HDD but without changes.
I also changed the Motherboard battery.
Any suggestions how can I solve this problem?
System Windows 7
ejn63
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February 5th, 2017 11:00
Unplug the system, remove the battery and hold the power button for 30 sec. Try powering up on AC only -- no battery. If the system will power up that way, the battery is bad - replace it.
If the system still won't power up reliably, replace the mainboard.
buejk
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February 6th, 2017 02:00
Ejnn63 it is not the battery.
I did the dell test and it doesn't show any errors.
ejn63
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February 6th, 2017 10:00
That leaves the mainboard as the faulty part -- if you have intermittent powerup problems, it's likely there's a cold solder joint somewhere on the mainboard going bad.