This is one of the most common problems with Toshiba laptops we deal with.
Indications of laptop overheating problem:
- The keyboard and the bottom of your laptop are very hot when the laptop is working.
- The CPU fans are working all the time at maximum rotation speed and operate much louder than before.
- 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.
- 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.).
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
- 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 A135) you have to open the laptop case all the way down.
- 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.
- Clean the fan and the heatsink with compressed air.
- I would also recommend removing old thermal grease from the CPU and applying new grease for better heat conductivity.