does a laptop have a

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Does a laptop have a thermal switch/ relay thing to start screen.
Mine , when getting BCOD [blue screen thing] and you restart, you hear the possessor but screen dead. After some time 20mins start again then screen starts to display.

 

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found this:
I just found this post and have joined to answer it for any others with the problem who may also stumble across this site in search of an answer. I recently contacted Compaq with this problem which happened after my laptop crashed in the middle of graphics intensive apps' running.

Turns out is something to do with excessive charge stored within the components of the laptop. In this situation there is a failsafe that will stop current going to different parts and being the screen uses more power than anything it is most often affected.

Unplug the power, take the battery out and hold down the power button for around 60seconds. This will release any excess charge built up in the machine. Put the power back in and turn on. That's it. You can also then of course replace the battery.

Now there will always of course, be various reasons for your screen to fail etc but most will not allow your laptop boot with all lights on and all the little 'plink' noises you can hear which suggest the laptop has fully booted.

 

[JerryMungo]

Does a laptop have a thermal switch/ relay thing to start screen.
Mine , when getting BCOD [blue screen thing] and you restart, you hear the possessor but screen dead. After some time 20mins start again then screen starts to display.

You don't perhaps have a Lenovo do you?
Yes, when there is some sort of failure (often HW), the computer is powered off abnormally and needs a proper reset to turn back on. Unplug all power (charger, battery), plug back in and off you go. If it does it regularly, it's likely got a problem with the cooling unit - heat sink paste or clogged heat sink fins or faulty fan can be the cause (among other things). Even faulty software (start task manager and see if something is hammering your CPU)

 

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Hp, this thing is under guarantee and was wondering to take it in. laptop will be away 2 weeks.