Question about Compaq Presario 1200 Notebook

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Computer shut off without warning.

Bottom of laptop became very hot before the laptop shut off, just as though someone had unplugged it. It did not go through the shutdown sequence. Just lost its power instantly and will not come back on. Does it need a new battery?

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  • eecom May 11, 2010

    Hi Compaq user. When you say it will not come back on, do you mean the laptop will not work at all now? Or did you manage to boot it up again later?

    One way to check if the battery is at fault is by 1) removing the battery, and 2) plugging your laptop directly into the mains (if you haven't tried this already of course :))

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I think it is also a problem of overheating
you get it checked up with the service center there might be the problem with the motherboard also

Posted on Nov 16, 2008

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Check you power settings. It is possible that it is set to shut down at 50% battery power.

If it is overheating, that too will cause a shutdown. What is happening at the time of shut down? Are the vents on the laptop being blocked in any way?

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My Toshiba P35-S611 shuts down without warning a short time (2 min-45 min) after it boots up. The battery isn't hot but the heat dissipation fins in the back are very hot.


Indications of laptop overheating problem:
  1. The keyboard and the bottom of your laptop are very hot when the laptop is working.
  2. The CPU fans are working all the time at maximum rotation speed and operate much louder than before.
  3. The laptop suddenly shuts down by itself without warning. When it just started, the laptop was shutting down after 1-2 hours and how it shuts down after 5-10 minutes of operation.
  4. The laptop works fine when it runs idle, but shuts down as soon as you start using any memory demanding applications (DVD player, image editing software, video editing software, etc.).

Solution:
If the CPU heatsink is not clogged with dust and lint completely, you can use canned air and just blow it inside the laptop through the openings on the bottom and on the sides. It’s nice as a precaution measure, but it might not work if your laptop already has a problem and the heatsink is completely clogged.
  1. Open the laptop case, so you can access the CPU fan and the heatsink. In some cases you can access the heatsink through the latch on the bottom of the laptop. Sometimes (for example Toshiba Satellite A70/A75) you have to open the laptop case all the way down.
  2. Carefully disconnect the fan cables on the system board and remove the fan. If the fan makes unusual sound when it spins (grinding sound), I would recommend to replace the fan.
  3. Clean the fan and the heatsink with compressed air.
  4. I would also recommend removing old thermal grease from the CPU and applying new grease for better heat conductivity.

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My laptop shut down after powering out with no warning and will not restart.... Toshiba L550 screen stays black but when I hit the enter key it beeps........any suggestions


“My Toshiba laptop suddenly shuts down by itself without any warning. Sometimes it works fine for hours, sometimes it shuts down in 10-15 minutes.” This complaint we hear from our customers over and over again. About 15-20% of all Toshiba laptops we get for repair, suffer from an overheating problem. Yep, OVERHEATING!
This is one of the most common problems with Toshiba laptops we deal with.
Indications of laptop overheating problem:
  1. The keyboard and the bottom of your laptop are very hot when the laptop is working.
  2. The CPU fans are working all the time at maximum rotation speed and operate much louder than before.
  3. The laptop suddenly shuts down by itself without warning. When it just started, the laptop was shutting down after 1-2 hours and how it shuts down after 5-10 minutes of operation.
  4. The laptop works fine when it runs idle, but shuts down as soon as you start using any memory demanding applications (DVD player, image editing software, video editing software, etc.).

Solution:
If the CPU heatsink is not clogged with dust and lint completely, you can use canned air and just blow it inside the laptop through the openings on the bottom and on the sides. It’s nice as a precaution measure, but it might not work if your laptop already has a problem and the heatsink is completely clogged.
  1. Open the laptop case, so you can access the CPU fan and the heatsink. In some cases you can access the heatsink through the latch on the bottom of the laptop. Sometimes (for example Toshiba Satellite A70/A75) you have to open the laptop case all the way down.
  2. Carefully disconnect the fan cables on the system board and remove the fan. If the fan makes unusual sound when it spins (grinding sound), I would recommend to replace the fan.
  3. Clean the fan and the heatsink with compressed air.
  4. I would also recommend removing old thermal grease from the CPU and applying new grease for better heat conductivity.

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It seem to be getting warm then shuts off and it need to cool off for a hour then works fine until get hot again


Most laptop related heat problems are due to clogged up fans. You have open ventilation holes in the back sides and bottom of a laptop. Using an air can (don't shake it) unplug the laptop remove the battery then blow out all the open holes. Also, try running without the battery to see if maybe the battery is overheating. Hope this helps.

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Laptop shuts down


if it just shuts down suddenly without logging off and doing a normal windows shutdown, you probably have heat issues to to dust clogging your heatsink. Using an air compressor at 80 lbs (canned air won't have enough pressure), blast air into the opening/grille where hot air is exhausted from the laptop. this will likely shoot a cloud of dust out of the bottom of the laptop. Shoot air into the fan intake on the bottom of the laptop next. If the laptop still shuts down suddenly, check that the fan is actually working (feel hot air blowing?) - maybe the fan is dead.

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Computer shuts down without warning


My first guess is that your laptop is over heating. Even with a fan underneath, if the bottom vent is clogged with dust, the CPU will still get too hot. Does your computer last longer when you run less programs? I would check for dust around the fan inside your laptop. There's a video on youtube showing an acer being disassembled:


Although it may not be your laptop specifically, hopefully it will head you in right direction. It would be a bad idea to blow the dust further back into your computer, so you may have to loosen some screws and buy a electronics duster from an office supply store, but it should solve the problem. I've ran into this a lot over the years, specifically with Acer and Dell computers. Hope this helps!



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Check you havent accidently knocked the RAM.
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e-mail me photos of the mother board or wherever the fan was.

completleywacked@gmail.com

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