Question about Toshiba Satellite L500 Series Notebook
Hello, initial query was that laptop was turning itself off via power but this morning 6.1.2013 it shuts down opened page to what appears like a very light sleep mode as i only have to move mouse to get page open again. this is not to say that things will stay like this. any & all help most welcome but please, not to technical as in that aspect i'm a 'computer pygmy' i wait for all wonderful minds to help solve my probs. lorraine.
I looked through your two previous problem statements, Lorraine.
I noticed in the two previous statements, that you indicate the laptop is not overheating.
With all due respect may I ask how you know this?
This additional statement's problem heading, also contains Toshiba Satellite L500 series of Notebook PC's.
This is the example I will give repair information for.
If it is not the correct model series, please post back in a Comment.
The hardware components inside the laptop are cooled by air.
Air is drawn in from the Bottom of the laptop, and exhausted out the side.
Due to the close proximity of the air intake duct, on the bottom of the laptop to whatever object it is rested on; the cooling system for the laptop can 'inhale' a lot of 'Gunk' quite easily, and quite rapidly.
'Gunk' = Dust, dirt, lint, hair, carpet deodorizer, food crumbs,....you name it.
This foreign material can clog the cooling components, and drop the cooling capacity tremendously.
All it really takes is a fine layer of Gunk. Most of the time the cooling problem has gone way beyond that.
An example using a Dell XPS,
At the first of the video you are greeted(?) with the thick layer of Gunk, that is over the fins of the Heatsink.
The cooling components for your laptop are;
1) Cooling Tube:
A copper tube slightly flattened, sealed on both ends, and filled with Nitrogen. There are also two small metal plates attached to the Cooling Tube.
One plate rests on the Processor; the other plate on the graphics chipset.
[The Processor and graphics chipset, are the two hardware components in a computer that give off the most heat ]
Heat is absorbed from the Processor, and graphics chipset, by their two respective metal plates.
The Cooling Tube absorbs heat from the two small metal plates, and transfers it to the Heatsink.
Small thin piece of metal, that has Tall, Thin fins protruding from it.
The Heatsink absorbs the heat, then radiates it away with it's tall, thin fins.
(House radiator, and automobile radiator work on the same principle; except water is used for the transfer medium, instead of air)
3) Fan Assembly:
The exhaust of the Fan Assembly, blo-ws air through the fins of the Heatsink. The air flow helps carry heat away from the Heatsink.
This is a Bottom view of your motherboard, and a look at the cooling components mentioned above,
The Cooling Tube is the copper colored curved tube. It has two metal plates on it. The one to the left with V-shaped clips on it, sits on the graphics chipset.
The small metal plate to the Right sits on the Processor.
Here's another look at the Bottom of the motherboard, with no hardware components installed, except the graphics chipset.
The pink rectangular object you see, with a multitude of holes in it, and a square hole in the middle; is the processor socket.
No Processor installed,
To know for a fact that the inside of the laptop is not dirty, the laptop has to be opened up, (Partially disassembled), and checked.
Why would a dirty laptop shut down?
The Processor is overheating.
When a Processor overheats it turns off. (BIOS turns it off)
This is a fail safe feature built-in. Keeps the Processor from burning up.
Laptop IS clean inside?
It was taken to a pro, and cleaned?
Well the Ol' 'tech' may have forgotten something.
Replace the Thermal Paste, and Thermal Pad.
The top of a Processor, top of a graphics chipset, and the bottom of those two small metal plates on the Cooling Tube; are not perfectly smooth.
A magnified view would detail, 'Hills, Valley's and Pitholes'.
When the two parts are mated together; Processor and metal plate; graphics chipset and metal plate; there are air pockets created.
Air is an Insulator, not a Conductor; in this case.
Thermal Paste fills the above mentioned imperfections, and is an Excellent conductor of heat. Helps tremendously in transferring heat.
Due to age, and the constant heat inside the computer, (laptop or Desktop), the Thermal Paste breaks down.
Looses it's thermal conductivity properties.
The Thermal Pad works on the same principle as Thermal Paste. This is because it is a material impregnated with Thermal Paste.
You can see how it breaks down also.
Sometimes the Processor has just Thermal Paste, or may use a Thermal Pad. The graphics chipset most of the time uses a Thermal Pad.
[Examples of Thermal Paste, and Thermal Pad material. The pad size needed, is cut from the material with scissors,
[NOTE* A Thermal Pad NEVER replaces a Heatsink. I think the heading is a typo. Should read "Thermal Pad replaces Thermal Paste."
This is erroneous too! lol! A Thermal Pad is junk, IMHO. Only use if I have to, which most times you do -> Graphics chipset ]
Joecoolvette is full of beans, because you know the laptop is clean inside, and has had the Thermal Paste, and/or Thermal Pad replaced?
(Sheesh! I Thought I had it there! lol!)
You can set the laptop to shut off at various designated times.
Has this been done to your knowledge?
Post back in a Comment.
For additional questions please post in a Comment.
Posted on Jan 06, 2013
Open the Power settings in Control Panel, Change to High Performance, in Advanced Power settings, Change Sleep and Hibernate to Never, adjust your power settings to your preference. When your laptop is not in use shut down, unplug. Remove battery if you use on AC most of the time. This will protect your laptop from possible power surges and overheating, your laptop will reset with a reboot everyday.
Posted on Jan 06, 2013
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Posted on Jan 02, 2017
To my knowledge it could be hibernate mode for laptops to save battery life when not plugged into the wall, try pressing the power button, my Compaq did that too. Also don't hold down the power button as after 5 seconds it just shuts off the laptop, unless you wanna do that.
Posted on Jan 14, 2008
go to toshiba's website
www.toshiba.com select your proper device and go to support put in your model number there have been some bios updates to resolve this issue. load all bios updates and you should eliminate this known issue.
Posted on Jul 19, 2009
Your are not "shutting down" the laptop. It is going into "Stand-by" mode.
When you want to shut down,
then select "Shut down" and not "Stand-by"
The power button will also work.
When you want to shut down,
Press the power button and nothing else.
The laptop will log you OFF and "shut down"
Posted on Nov 08, 2009
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