If it has not been used for a while then it is probably dust in the fan. The way to fix this is to open the computer tower and using a cotton swab clean all of the fans inside of the computer.
Not sure, but I would guess overheating?
The reason why you would use a computer cover is to protect your monitor, CPU, keyboard, and printer from computer damaging dust. Using a computer dust cover also will protect your computer from harmful particles that can increase overheating.
Not sure, but I would guess overheating?
Dust is usually the major cause of overheating. The case needs to be opened and blow out all the dust around the heatsinks and fans.
If dust is within the fan area, it will create a the fan to move slower or activate even though your computer isnt hot. You also might find that a overheating problem will occur.
You need to clean because dust is one of most dangerous enemies of all computers. It's not only conductive, and provokes electrostatic discharge, but it traps heat which causes overheating.
CPU might be overheating. try clelaning the dust away or upgrading the heat-symc and fan.
Overheating. Is it overclocked, is there dust in the power supply, is there no air flow. Very common in laptops.
Clean the dust out of it, chances are your computer is overheating. Make sure you clean the dust out of the CPU area and heatsink and clean off all of the fans. If this continues to happen it may be a virus so run your anti virus scanner and if it persists take it to a certified tech.
If your computer randomly restarts while using it, your computer may be overheating. Check your computer for dust and remove if necessary. Random restarting could also be due to malware or operating system damage. If this is the case, ask your local computer shop about computer repair.
not enough air flow. if your sure the heat sinks are okay, then you need more air circulating through your computer to keep it cool.
Dust can cause overheating by preventing ventilation. In very sensitive circuits, especially those dealing with very high frequency signals such as radio transmitters and receivers, dust can also de-tune the circuit, thus leading to a deterioration in performance.