After cleaning the fan it won't power back up

sound like a faulty fan or the fan's power lead check all connections soldering and plugs for secure dust free connections or replace the fan

hope this helps

OverheatingWhen the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail.
A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust.
Check the CPU fan to see if it spins freely, if not replace the fan.
If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a small brush and can of compressed airto do this.

If the fan is failing the most times the computer will not start because it will overheat. There are two fans inside the system, one inside the Power Supply and one that sits on the motherboard.

Remove the Power Cord, Open the case, Remove the cover and with a can of compressed air blow out the dust inside the computer. Clean the dust away from the Fans, Vents, CPU and Heat Sink are that sits under the Fan on the motherboard.

It may be the power supply or the memory, try cleaning the dust and mud inside.
Then remove the memory and clean it and insert it back again and check
If required just replace power supply and memory and check


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If you have cleaned out the dust with compressed air, then I suggest you look at the processor cooling. Is the fan running up to speed? Is the heat sink tightly in place on the processor? Feel the fins of the processor heat sink when you power it up and if they get hot your processor is most likely over heating and shutting down. If all is well at the processor, check the power supply fan to see if it is running and the only other suggestion is to try another power supply. Dust is your worst enemy in a computer.

The best way to clean a griddle caked with grease is to turn it on and let it get hot. Then turn it off and while still hot, use a non abrasive cleanser (aka Comet, Bon Ami) with a nylon scrubber to cut through the grease. If the griddle does not have a non stick surface, you can get "screens" to work the grease free. This is what is used on professional grills (usually on a nightly basis). If all else fails, most oven cleaners will do a nice job.

Here is the basic idea on how to keep the refrigerator, air conditioner, or vacuum cleaner to work properly. Air is moved by an electric fan or blower in order for that product to work properly. If air movement is blocked the fridge won't get cold, the central air conditioner won't cool enough, the vacume cleaner won't clean as well. Check on your fridge's air movement by inspecting the bottom of the fridge for dust and cob webs. Remove the front bottom clip-on plastic grill. Or also even access the lower back of the fridge by removeing the screws holding up the heavy cardboard cover to see inside. Blockage of air flow will prevent a fridge from getting cold. Just like a vacume cleaner stops working when the bag is filled with dust and fibers.

The air could be blocked by the accumulation of dust and fibers. Look under your fridge if it is cloged, it will look just like the stuff on a dirty central air filter.

Dust and fiber buildup blocking the fridge's air movement from back to front (or visa-versa) of your fridge will slowly (years) prevent how good it cools. The build-up of dust and cobwebs prevents your fridge from cooling (more specifically prevents the heat to disapate from the metal heat disipating fins attached to the metal tubes to be blown off by the fans air). OK! Remedy for a vacuum cleaner REPLACE THE CLOGED VACUUM BAG.

Remedy for your fridge manually REMOVE THE CLOGING DUST AND FIBERS FROM UNDER YOUR FRIDGE. SORRY fridge manufacturers do not provide a dust filter like the vacume cleaner and central air systems manufacturers do. You have to figger out the best way you can clean it. Possibly vacuum with a crevice tool, or use a small brush than vacuum. The extreme would be unplug the fridge ( so you won't get electrocuted) bring a water hose into the kitchen and spray water at cobweb buildup at the bottom fridge, than wet vac the floor then wait 20 minutes to dry before pluging the fridge back into the electric outlet.
When you stand in front of your fridge and you hear the fridge electric motor turn on, the fan will blow air.The fridge

Here is the basic idea on how to keep the refrigerator, air conditioner, or vacuum cleaner to work properly. Air is moved by an electric fan or blower in order for that product to work properly. If air movement is blocked the fridge won't get cold, the central air conditioner won't cool enough, the vacume cleaner won't clean as well. Check on your fridge's air movement by inspecting the bottom of the fridge for dust and cob webs. Remove the front bottom clip-on plastic grill. Or also even access the lower back of the fridge by removeing the screws holding up the heavy cardboard cover to see inside. Blockage of air flow will prevent a fridge from getting cold. Just like a vacuum cleaner stops working when the bag is filled with dust and fibers. The air could be blocked by the accumulation of dust and fibers. Look under your fridge if it is cloged, it will look just like the stuff on a dirty central air filter.

Dust and fiber buildup blocking the fridge's air movement from back to front (or visa-versa) of your fridge will slowly (years) prevent how good it cools. The build-up of dust and cobwebs prevents your fridge from cooling (more specifically prevents the heat to disapate from the metal heat disipating fins attached to the metal tubes to be blown off by the fans air). OK! Remedy for a vacuum cleaner REPLACE THE CLOGED VACUUM BAG.

Remedy for your fridge manually REMOVE THE CLOGING DUST AND FIBERS FROM UNDER YOUR FRIDGE. SORRY fridge manufacturers do not provide a dust filter like the vacume cleaner and central air systems manufacturers do. You have to figger out the best way you can clean it. Possibly vacuum with a crevice tool, or use a small brush than vacuum. The extreme would be unplug the fridge ( so you won't get electrocuted) bring a water hose into the kitchen and spray water at cobweb buildup at the bottom fridge, than wet vac the floor then wait 20 minutes to dry before pluging the fridge back into the electric outlet.
When you stand in front of your fridge and you hear the fridge electric motor turn on, the fan will blow air out the bottom.The fridge

Here is the basic idea on how to keep the refrigerator, air conditioner, or vacuum cleaner to work properly. Air is moved by an electric fan or blower in order for that product to work properly. If air movement is blocked the fridge won't get cold, the central air conditioner won't cool enough, the vacume cleaner won't clean as well. Check on your fridge's air movement by inspecting the bottom of the fridge for dust and cob webs. Remove the front bottom clip-on plastic grill. Or also even access the lower back of the fridge by removeing the screws holding up the heavy cardboard cover to see inside. Blockage of air flow will prevent a fridge from getting cold. Just like a vacuum cleaner stops working when the bag is filled with dust and fibers. The air could be blocked by the accumulation of dust and fibers. Look under your fridge if it is cloged, it will look just like the stuff on a dirty central air filter.

Dust and fiber buildup blocking the fridge's air movement from back to front (or visa-versa) of your fridge will slowly (years) prevent how good it cools. The build-up of dust and cobwebs prevents your fridge from cooling (more specifically prevents the heat to disapate from the metal heat disipating fins attached to the metal tubes to be blown off by the fans air). OK! Remedy for a vacuum cleaner REPLACE THE CLOGED VACUUM BAG.

Remedy for your fridge manually REMOVE THE CLOGING DUST AND FIBERS FROM UNDER YOUR FRIDGE. SORRY fridge manufacturers do not provide a dust filter like the vacume cleaner and central air systems manufacturers do. You have to figger out the best way you can clean it. Possibly vacuum with a crevice tool, or use a small brush than vacuum. The extreme would be unplug the fridge ( so you won't get electrocuted) bring a water hose into the kitchen and spray water at cobweb buildup at the bottom fridge, than wet vac the floor then wait 20 minutes to dry before pluging the fridge back into the electric outlet.
When you stand in front of your fridge and you hear the fridge electric motor turn on, the fan will blow air.The fridge

An air compressor would work. It might be a bit too powerful for it.

Those cans of air they sell in office supply stores might work too.

(Previous message was posted as clarification, not solution).