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Dell laptop cooling rack maintenance methods
Notebook cooling method
As long as the laptop, it will design the heat sink. When the laptop work, the internal heat generated through the fan, heat sink and heat sink to the vicinity of the heat sink, and then discharged through the heat outlet.450-aben
Because there are often air flow, the heat sink will often accumulate some dust.
Notebook cooling the maintenance of the mouth
Want to remove the dust from the heat sink, do not use clean blowing, because that would only be counterproductive. We can use professional cleaning cloth and cleaning agent, the dust on the dust.

From:http://www.parts-dell.cc/dell-laptop-cooling-rack-maintenance-methods/

How to correctly replace the dell power supply?

How to correctly replace the dell power supply?

Anyone who buy dell power supply from Parts-dell.cc will ask such question “How to correctly replace the dell power supply”?Now I’m here to tell you all that correctly relace the dell power supply.

Making Dell OptiPlex 790 power supply as one example,when we are replacing it,we should be careful because there is so many sensitive electronic components that are easily damaged by static electricity and excessive shock. When handling the power supply and other components, ensure you are properly grounded using an anti-static mat or similar device. If anti-static equipment is not available, ground yourself by touching the exterior of the computer case or another large metal surface before handling any peripherals.

First step：Make sure you can replace it or ensure the computer is shut down and disconnect the power cord from back of the old supply before you replace it.

Second step :Open your computer case.

Third step ：Disconnect the old power supply connections from inside your computer. Mount the power supply.

Fourth step :Plug in the connectors.

Fifth step:Close your case.

Last step:Turn your power and check!

From:http://www.parts-dell.cc/how-to-correctly-replace-the-dell-power-supply/