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ONE THING HOWEVER Karl, to work on this All-In-One you need to wear an ESD wrist strap, and have it's alligator clip connected to a good ground source. This is just like working on a LAPTOP computer, NOT a desktop.
The heat sink may be clogged with dust and ifthe BIOS temperature sensor controls the fan speed then it may be compensatingfor the reduced cooling by the dust build-up. Check the fan and heat sink assembly and remove the dust, loosen the dust anduse a can of compressed air to clear away the dust.
first you need to disconnect your ram from mother board and turn on your computer
is there any beep sound?i long and 2 short?if yes it mean your ram was damaged, try connect another ram to your computer
and try to turn on your computer again
Hey ArtWest, One of the most common reasons why this might occur is if your computer is overheating due to poor circulation or blocked ventilation. As such, I'd first suggest giving the computer a thorough cleaning using an air duster, and making sure that the external vents are not plugged. If there's any kind of obstruction blocking these vents, the internal temperature of your computer can rise to the point that it must shut itself down to prevent any kind of damage. Remember to always hold these dusters at least six to eight inches away from the surface(s) being cleaned, as they have been known to leave liquid residues behind or freeze surfaces when held too close. Additionally, overheating may be caused by the failure of an active heat sink (fan). If you feel confident in opening your computer's case, you may wish to verify that all of the fans are working correctly when the computer is in operation. Many computers will have at least two internal fans: one to cool the CPU, and one to cool the case itself. Some models may have several extra fans to cool the video card or to help improve circulation. Assuming that cleaning the computer does not resolve the problem and all of your internal fans are still operational, you could potentially be looking at a more serious problem: a possible defective processor or motherboard. Remember though that any repairs not performed by a factory-authorized technician may void your warranty coverage, so make sure to contact Acer first if your warranty is still in effect. Hope this helps you out. Sincerely, Aaron Go Ahead. Use Us.
There are two solutions to this problem. First set the fan in the PC Bios to rub at full speed all the time. This was too noisy for me.
Second, If you are running Windows Vista, you can adjust the Maximum Porcessor Utilization. From the Windows Control Panel select the Power Options icon. Then select "Change plan settings" for which ever power plan the PC is set to use. Then select "Change advanced power settings". Expand the "Processor power managment" by clicking on the "+" symbol. Finally click on the "+" for "Maximum processor state". I would try changing this setting to "90 %". This worked fine on my ACER L100 and it no longer overheats.