Question about HP PC Desktops
This is usually caused by two things - overheating on the drive or a faulty thermal sensor depending on which fan is doing all the work - is it a new machine? if still under warranty I would return for servicing. Hard drives do generate a lot of heat - - try improving the airflow to the case also.
Posted on Nov 30, 2008
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An eMachines desktop or laptop computer fail to boot for a variety of reasons, but a fast, loud fan noise signifies that the system is suffering from overheating.
The problem, and the steps for troubleshooting it, is not unique to the eMachines brand. When the internal temperature of the computer reaches too high a level, the system will shut down automatically to allow the heat to dissipate.
If you attempt to power up too soon, the machine will not boot properly.
To boot, you will need to correct the cause of the overheating, and keep the machine cool.
Although different in size, both desktop and laptop computers have air vents to help the fans keep air circulating around the hot internal components.
If these vents become blocked, by pushing a desktop too near a wall or using the laptop on a soft surface, the air supply your internal fans need to cool the system is cut off.
This blockage also traps the heat inside, allowing it to build to dangerous levels.
Keep the air vents on your computer free and clear to allow proper airflow.
Airborne particles, such as dust, lint and hair, can gather on the air vents and internal components over the course of time.
This accumulation of dirt not only provides a sort of "insulation" to the electronic components, preventing the heat they generate from dissipating normally, but it also clogs the fan and heat sink to prevent proper function.
Use canned air and damp, soft cloths to thoroughly remove any built-up debris from inside your computer.
Dried Thermal Paste
The heat sink sits atop the CPU chip to help dissipate the heat the component produces. Thermal paste is layered between the CPU and the heat sink to help draw the heat away from the chip for cooling.
Over time, the cooling properties of this paste decreases, and the substance becomes dry and flaky.
You can replace this paste to renew its cooling assistance by removing the old paste remnants with rubbing alcohol and adding a new layer.
Thermal paste is also known as thermal compound or thermal grease, and is available at most electronics stores.
When examining overheating causes, don't overlook the environment you use your computer in.
External heat sources, such as fireplaces or even rays of direct sunlight, can cause the internal temperatures of your computer to rise.
This causes your internal fan to run harder in an attempt to dissipate the combined heat before temperatures rise too high.
Move your computer away from external heat sources to encourage more effective cooling.
Hope this helps
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