The bottom panel of the notebook will be warm while the notebook is in use or the battery is charging. This is normal and does not indicate a malfunction or safety hazard. The actual temperature of the CPU and battery will vary depending on the peripherals and software you are using and the length of time that the unit is in use.
The computer is designed to turn off when the operating temperature is too high. This is normal operation. If this issue occurs on a regular basis even though you are using the notebook in the recommended cool, well-ventilated environment, service may be required.  Go to Product Repair.
Some customers have reported that the Microsoft® Certificate of Authenticity (COA) sticker on the bottom of the notebook appears to be burnt or scorched. Be assured that the sticker is not scorched, the dark mark is simply the color of the notebook case showing through the transparent portion of the sticker.
Guidelines to prevent inadvertent overheating:
The notebook has a cooling fan and heat sink that help it maintain a safe operating temperature. Certain environmental factors, such as inadequate ventilation or an extremely high ambient temperature, can cause the operating temperature of the notebook to increase. Follow these guidelines to ensure you are using the notebook in the recommended environment:
- Regularly wipe the exterior of the notebook case with a clean, soft cloth to prevent a build-up of dust that could interfere with air circulation of the cooling system.
- Provide adequate air circulation to prevent internal heat buildup.
- Leave a space of at least 8 inches behind the back panel of the notebook.
- Do not place your notebook on porous surfaces such as rugs or blankets, or near materials such as curtains or draperies that may block the ventilation slots.
- Do not cover the computer or adapter with clothing or blankets when the computer is turned on as covering these components may cause an additional heat build-up, resulting in damage to your unit.
- Do not use the notebook computer on your lap for an extended period of time; extended contact with the computer or adapter may cause discomfort.
Cleaning external vents:
Some notebooks have external vents on the back of the case. These vents allow for extra cooling by circulating air through the interior of the computer case. Excess dirt can block these vents, which could cause the computer to overheat. Use any of the following methods to remove excess dust from the vents of the notebook:
- Clean the vents with a clean, soft cloth or cotton swab.
- Vacuum the vents with a handheld vac or dusting attachment on a household vacuum cleaner.
- Blow the dust out of the vents using compressed air (available at most computer and electronics stores). Be careful to angle the air flow away from the computer to ensure you do not blow the dirt further into the computer case.
NOTE: There are various third-party devices available that are designed to help increase the comfort and usability of notebook computers. Consult a local or Internet retail computer accessory store for more information regarding the availability, compatibility, and price of these devices.
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