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EMmachine Tower 600is power shut down after being on for 1 minute

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The CPU is probably overheating because of dust build up between the fan and the heatsink

Just unplug the computer and open the case then very carefully unscrew the fan from the heatsink but do NOT remove the heatsink if you do not have to especially if it has an AMD cpu since AMD cpu’s burn up quickly if the heatsink is not perfectly installed or if the heat transfer grease comes off when removing heatsink so it is best to just leave the heatsink clamped down and just unscrew the fan

Once fan is removed you will notice a thick layer of dust build up that you could not see with the fan on and so just carefully remove the dust with an old tooth brush or something like that (it does not have to be spotless or perfect just as long as the main thick parts that were preventing the air from the fan from hitting the metal heatsink are gone then carefully put the fan back on the heatsink and now that the barrier of dust is removed the air will hit the metal like it is supposed to and no more overheat

You want to do this as soon as possible since it doesn’t take very many times with AMD CPU'S for them to overheat permanently and never work again (ive seen them burn up in just a few times).

p4 CPU same thing dust needs to be removed but be very careful when removing and replacing the fan and heatsink so that you do not accidentally break off one of the 4 plastic clips that hold it on because there will be no way to hold it on properly if even just one clip breaks and you will then need to go out and probably buy a different type of heatsink for it that screws on from the bottom of the motherboard and that can be quite a hassle to install since board would have to come completely out of the case to do so.

Once you are completely finished and power up the computer go into the system bios and check the hardware monitor to see the temp of your CPU if it says 70c or higher after just barley turning it on then maybe there is still dirt to clean off or the fan might not be spinning.
any temp lower than that is fine (temps vary from different motherboards if it is down in the 40's then your good to go with no worries but being in the 50's is ok too .. if its in the 80's then just pull the power cord because that’s way to high..
temps referred to here are all in Celsius by the way

Posted on Nov 25, 2008

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Constant rebooting of a computer can be cause by alot of reason the most common for this is due to oevrheating, to check if this is a overheating problem try to open the case of the tower and put a electric fan in front of the tower to coll it down then power ON thecomputer and if it booted up fine with a electric fan blowing on the tower we're sure that you need to add some colling device on the computer tower, But if still do the same thing the problem here is the power supply unit it needs a replacement already....

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There maybe to much dust build up on your cpu cooler that causes it to shut down to protect itself it needs clean about every 2 months or less to make it run smoothly.That is one solution the other solution is that your power supply needs to be clean also or replaced.Buy a can of air from your local computer store or walmart etc......

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