Having problems with your HP Compaq Business nc8000 Notebook ?
My nc8000 shuts down after few seconds and starts after power plugged in or battery inserted
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\015 My laptop was having problems with display, screen was turning blank randomly and was back on after standby or power off -by blank I mean dimmed desktop could be seen - just backlight was off, system was still responsive so Fn + F3 worked. I diagnosed problem as bad inverter but in the before I did when laptop was powered on and off too many times a different problem appeared, at first rarely, but now always.After laptop is connected to power supply or battery is inserted it starts up automatically almost instantaniously. Power led is green, hdd and fan are spinning up, dvd clicks as usual, screen remains blank. But after about 2 seconds computer shuts down and cycle repeats after 4 seconds.I can avoid automatic powering up by removing battery when computer is powered on, when battery is plugged in again it won't start and battery is being charged as orange light indicates.To diagnose problem I removed all unecessary equipment - hdd, dvd, wifi, tried booting without lcd panel connected to mainboard, without keyboard and for the sake of experimenting tried both inverters - original and replacement.I suspect it might be a broken power switch on mainboard which is always pressed on or power circuits like internal DC/DC impulse power converter with exhausted capacitor, unable to provide enough power to start GPU for example.I have tried looking around for an answer and found many similar problems but no reliable solution. Please put me on the right track diagnosing and solving problem as it might be simple enough to fix by using screwdriver and soldering iron with support of nearby electronics shop.PS. Laptop's guarantee is long gone and sorry for my English.\015
\015\012Have fun and practice some repair skills.
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