compaq presario cq70 turned off wont turn on

Hewlett-packard / Compaq presario cq70
June 27, 2010 at 17:52:55
Specs: Windows XP
Basically we were playing diablo when the laptop turned off. This laptop in particular has a habit of freezing to the point it needs to be rebooted. It turned off and now will not turn on. Pressing the power button only makes the lightning bolt light flash however nothing else happens.

Any suggestions?
Thanks for the help

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June 27, 2010 at 18:26:53
It sounds like either the cpu is overheating, or there is a problem related to the battery or AC adapter.

If the CPU is overheating the computer will shut off and not start up again until the CPU has cooled below some threshold temperature. You can check the present CPU temp in the bios, or you can load programs in Windows that can show you that anytime you care to look, e.g.the freeware SpeedFan, or some brand name computers already have such installed in their original brand name software installation

The most common causes of that is....
- you are obstructing the openings that let air into and out of the base
- there is too much accumulated dust, lint, etc. inside the air passages inside the base
- if the laptop has been used a lot, the fan inside the case may be spinning too slow, or not at all.
The latter two may require you get yourself a Maintenance manual and open up the case to take a look. In most cases, the HP site has such for HP and Compaq computersin the manuals available for your model .

If there is a problem related to the battery or AC adapter, your main battery may not be being charged properly. In that situation, when the main battery hasn't got enough capacity, most more recent laptop computers will shut off and will not not start up again until the main battery has at least a minimal charge - the computer will not start up on the AC adapter alone, or if the AC adapter is connected but main battery can no longer retain at least a minimal charge.
If the main battery gets HOT rather than just warm when you attempt to charge it with the laptop off after a half hour or more of charging, the main battery is internally shorted and you MUST replace it.

Laptop no video (or video problems), and battery, AC adapter, power jack T shooting.

See response 1:

DO NOT plug in or unplug a monitor's video cable into / from a video port while the computer is running. Doing so can damage the monitor's circuits and/or the video adapter's circuits.

Some laptops will display on an external monitor without you having to do anything.

If you get no video on an external monitor, some laptops have a key combo that you must press to toggle the display to external video only / sometimes both / built in display video only - see the Owner's or User's manual for the model.

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December 17, 2010 at 14:39:49
hi overheating is most likely to be your problem this happened to me the way to get your laptop running is,

(1st get one cushion, power up the laptop while on charge, lay it on the cushion)
(2nd) put another cushion over the laptop (still on and on charge)
(3rd) wrap it up in a blanket or duvet wait untill the computer gets hot (overheated)
this may take 45 minuets once laptop is hot take out the charger and power it down
then put back in the charger and power it up this should work.

As crazy as this method sounds it worked for me i think
its to do with warming up the cpu.

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December 18, 2010 at 07:52:05

Your info is just plain bizzare, and doing that could damage the laptop.

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Related Solutions

December 22, 2010 at 18:59:46
Disconnect all outside connections , like USB sticks, ext. network, VGA screen, mouse etc.
Try to start up (without battery) in safe mode (F8), the standard Windws VGA driver will be loaded and that gives less stress on the videochip.
If it starts up, you know it's maybe a videochip issue. With the HP 9000 series it was a cooling issue (and also a videochip design fault of Nvidea).

N.B! The method of ghlord to overheat the laptop is a wellknown, but tricky temporary? solution? to the soldering problem (balling) of the 9000 series Nvidea videochip.

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