Lenovo S540 manual Spills on the keyboard, Error messages, If you spill something on your computer

•If the computer is turned off, restart the computer by pressing the power button. If the computer does not turn on, continue with step 2.

•If you cannot turn off your computer by pressing and holding the power switch, remove all sources of power from the computer and reset the system by inserting a straightened paper clip into the emergency-reset hole. To locate the emergency-reset hole, see “Bottom view” on page 6. After the computer is off, restart the computer by pressing the power button. If the computer does not turn on, continue with step 2.

2.While the computer is off, remove all sources of power from the computer and reset the system by inserting a straightened paper clip into the emergency-reset hole. Then hold down the power button for 10 seconds. Reattach the ac power adapter. If the computer does not turn back on, continue with step 3.

Note: If the computer starts with ac power but does not start when ac power is removed, call the Customer Support Center for support.

3.While the computer is off, remove all external devices that are attached to your computer (keyboard, mouse, printer, scanner, and so on). Repeat step 2. If step 2 is unsuccessful, continue with step 4.

Note: The following steps involve removing static sensitive components from your computer. Ensure that you are properly grounded and remove all sources of power attached to the computer. If you are uncomfortable or unsure about removing components, please call the Customer Support Center for assistance.

4.While the computer is off, remove all sources of power and external hardware and reset the computer by inserting a straightened paper clip into the emergency-reset hole. Then remove any non-original memory module added to your computer. Refer to the procedure in “Replacing a memory module” on page 74 on how to remove and reseat the memory modules. After removing the extra memory module and reinstalling the original memory module, repeat step 2. If the computer still does not turn on, refer to Chapter 6 “Replacing devices” on page 69 to reseat other customer-replaceable components that are attached to your computer.

If the computer still does not start up, call the Customer Support Center and a Customer Support Specialist will assist you.

Spills on the keyboard

With a mobile computer, there are increased chances of spilling liquids on the keyboard. Because most liquids conduct electricity, liquid spilled on the keyboard could create numerous short circuits, potentially causing irreparable damage to your computer.

If you spill something on your computer:

Attention: Ensure that no liquid creates a short circuit between you and the ac power adapter (if in use). Although you might lose some data or work by turning off the computer immediately, leaving the computer on might make your computer unusable.

1.Carefully unplug the ac power adapter immediately.

2.Turn off the computer immediately. The more quickly you stop the current from passing through the computer the more likely you will reduce damage from short circuits.

3.Wait until you are certain that all the liquid is dry before turning on your computer.

Note: If you want to replace your keyboard, you can purchase a new one.

Error messages

•Message: 0177: Bad SVP data, stop POST task.

Solution: Checksum of the supervisor password in the EEPROM is not correct.

108User Guide