HP Compaq Presario,Presario 1515 Supplementary Manual page 40

In some countries, the product cord set may be equipped with a wall plug having
overload protection. This is a safety feature. If the plug needs to be replaced, be sure
the Compaq authorized service provider uses a replacement plug specified by the
manufacturer as having the same overload protection as the original plug.
If an extension cord or power strip is used, make sure that the cord or strip is rated for
the product and that the total ampere ratings of all products plugged into the
extension cord or power strip do not exceed 80% of the extension cord or strip
ampere ratings limit.
Do not overload an electrical outlet, power strip, or convenience receptacle. The
overall system load must not exceed 80% of the branch circuit rating. If power strips
are used, the load should not exceed 80% of the power strip input rating.
Unplug the product from the wall outlet before cleaning. Do not use liquid cleaners
or aerosol cleaners. Use a damp cloth for cleaning.
The product should be placed away from radiators, heat registers, stoves, or other
pieces of equipment (including amplifiers) that produce heat.
When replacement parts are required, be sure the service provider uses replacement
parts specified by Compaq.
Upon completion of any service or repairs to the product, have your Compaq
authorized service provider perform safety checks to determine that the product is in
proper operating condition.
Use only the options and upgrades recommended by Compaq.