Lenovo C540 Support Question

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Question posted by kohl3436 on August 26th, 2014

Keyboard/mouse Fails

System boots but kb/m fails to work. Tried different kb/m and problem continues

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Answer #1: Posted by TechSupport101 on August 27th, 2014 2:23 AM

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TechSupport101

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Hi. Does the keyboard particulary works on the BIOS part of things? If yes, then the drivers that serve as a linkage betweet the KB&M must have gone corrupt. To correct this, simply load a fresh copy of Windows. Here is your computer's manual for reference http://www.helpowl.com/manuals/Lenovo/C540/181315

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Related Lenovo C540 Manual Pages

User Guide - Page 2

... Safety and Warranty Guide that you received with this product for the latest safety information. Reading and understanding this product. Product design and specifications may differ from actual product appearance. Attention: Be aware of extremely hazardous or potentially lethal situations. GS-35F-05925.

User Guide - Page 4

... 3 Rear view of the computer 4 Installing the computer stand 5 Computer stand 6 Connecting your computer 7 Connecting the power cord 8 Important information about using the computer 9 Wired keyboard (selected models only 10 Connecting to the Internet 10 Using Windows 8 11 Switching between the main Windows 8 interfaces 12 The Charms Bar 12 Shutting down...

User Guide - Page 5

Troubleshooting and Confirming Setup 19 Troubleshooting Display Problems 20 Troubleshooting Audio Problems 21 Troubleshooting Software Problems 22 Troubleshooting Problems with Optical Drives and Hard Disks 23 Special considerations for troubleshooting Windows 24 Windows Help and Support 24 BIOS setup utility 25 Performing Daily Maintenance ...

User Guide - Page 6

User Guide 1 Using the Computer Hardware This chapter contains the following topics:  Introduction to the computer hardware  Information on computer connections Note: The descriptions in this chapter might be different from what you see on your computer, depending on the computer model and configuration.

User Guide - Page 8

Left and right views of the computer Attention: Be sure not to block any air vents on the computer. User Guide 3 Blocked air vents may cause thermal problems. 7 8 1 2 3 4 5 6 USB connector Microphone connector Memory card reader Optical drive eject button Headphone connector USB connector Power button Optical drive Attention: Do not insert 3-inch discs into the optical drive.

User Guide - Page 12

... your display or TV. User Guide 7 Use this connector to attach a device that requires a USB connection. Note: If your computer is equipped with a wireless keyboard or mouse, follow the installation instructions for those devices. Use this connector to attach headphones to your computer when you use speech-recognition software. Use this connector...

User Guide - Page 15

Wired keyboard (selected models only) LVT -- After entering Windows, press this model of your country. Your computer has the...models only) or wired network that connects your computer to other end to access your computer to the Internet, you are using a mouse, point to the top right or bottom right corner of an Ethernet cable (purchased separately) to launch the LVT (Lenovo Vantage ...

User Guide - Page 17

..., then tap Settings. (If you were just using a mouse, point to the top right or bottom right corner of the following : • Select the Windows desktop tile on the Start Screen. • Press the Windows... , or quickly switch through your recent apps. To switch from the Start Screen to the Windows desktop, do one of the following : • Select Start from the Charms Bar. • Move...

User Guide - Page 18

.... When the thumbnail appears, right-click with the operating system, see the Windows Help and Support file. Windows Help and Support If you have a problem with the mouse to the bottom of the screen. • Swipe in from the top edge of the screen. You can read the Windows Help and Support...

User Guide - Page 22

Do not install software which is already installed on the Windows desktop or Start screen. Click OK to install the Lenovo drivers and ...Driver and Application Installation The Driver and Application Installation function in the pop-up dialog box. The system will continue until the Lenovo Rescue System opens, then select Drivers and Application Installation. User Guide 17 Method 2: Manual ...

User Guide - Page 24

It does not apply to machines which have a TV tuner card. User Guide 19 Troubleshooting and Confirming Setup This chapter contains the following topic: Ø Troubleshooting and Problem Resolution Note: The description of the TV tuner card in this manual is only applicable to machines that do not have the TV tuner card.

User Guide - Page 25

... ensure that the part is correctly installed. • If a peripheral device does not work, ensure that the LCD screen has been turned on; Troubleshooting and problem resolution: Check that the device is displayed on the LCD. Right-click the desktop anywhere except over an icon, then select Personalize from the pop-up menu...

User Guide - Page 26

...: • Adjust the Windows volume control - sound from the computer. 3. Troubleshooting and problem resolution: • Check the headphone cable connection - Problem: Ripple on taskbar to show the hidden icons in Windows desktop mode, then click the speaker icon. Move any of the following devices are connected to see if any interfering devices away...

User Guide - Page 30

...? Shut down the computer. 2. BIOS setup utility What is the UEFI mode. How can I need to change the boot mode to UEFI or Legacy support on the boot menu. User Guide 25 The BIOS setup utility is ROM-based software. If you need to install a legacy Windows operating system (any operating system...

User Guide - Page 31

...clean the computer to clean in otherwise inaccessible corners. • To clean the keyboard thoroughly, shut down the computer and scrub it is dry. The cleaning supplies ...to remove dust on the surface of the computer, the monitor, the printer, the speakers and the mouse. • You can use products specifically designed for cleaning displays, and follow the instructions included with ...

User Guide - Page 32

Hardware Replacement Guide This chapter contains the following topics: Ø Removing the stand base Ø Removing the foot cover Ø Replacing a memory module Ø Replacing the hard disk drive Ø Replacing the optical drive Ø Replacing the adapter Ø Replacing the keyboard and mouse User Guide 27

User Guide - Page 33

... well as parts. This guide contains procedures for replacing the following parts: • Memory modules • Hard disk drive • Optical drive • Adapter • Keyboard, mouse (wired) Safety information for step-by trained service personnel without the need for replacing CRUs Do not open your computer. If you no longer have...

User Guide - Page 45

...or memory cards) from electrical outlets. 3. Refer to the same connector. * The mouse can be connected to a USB connector at either side or at the rear of ...2. Disconnect the defective keyboard cable from the computer and connect the new keyboard cable to "Side view of the computer" and "Rear view of the computer. Replacing the keyboard and mouse Note: Your keyboard will be replaced using...

User Guide - Page 46

... laws and rules. You are welcome to instructions and requirements in the manuals included with your computer, or operate the product inappropriately. Declaration Thank you fail to operate the product according to contact us about the manuals included with your computer is not responsible for using Lenovo products. For the configuration...

User Guide - Page 49

Repeatedly press and release the F1 key when turning on your keyboard. This mode reduces electricity consumption when your computer by pressing the power switch. 44 User Guide Press Enter when prompted to save changes and exit ...