Why are hard drives missing in Lenovo ThinkCentre 2121 setup?
To address the issue of some or all hard disk drives missing from the Setup Utility program on your Lenovo Desktop, ensure that all hard disk drive signal cables and power cables are connected correctly. Also, ensure that your computer is configured correctly to support the hard disk drives.
Why my Lenovo ThinkCentre 2121 Desktop can't connect to the internet?
If your Lenovo Desktop computer isn't connecting to the network, check that the network cable is securely connected to both the Ethernet connector on your computer and the RJ45 connector of the hub. Also, ensure you are using the correct device driver, the switch port and the adapter have the same duplex setting, and that you have installed all necessary networking software for your network environment.
How to fix no sound on Lenovo ThinkCentre 2121 Desktop?
If there is no audio in Windows on your Lenovo Desktop, verify that powered external speakers are switched on and connected to a properly grounded outlet. Check that the speaker volume is not too low. In Windows, double-click the speaker icon and ensure mute is off and volume settings are adequate. Verify speakers/headphones are connected to the correct audio connector and that the program you are using is designed for Windows. Finally, check that audio device drivers are correctly installed.
What to do if Lenovo ThinkCentre 2121 keyboard is not working?
If your Lenovo Desktop keyboard isn't working, first ensure the computer is turned on. Then, check that the keyboard is securely connected to a USB connector on the computer and that no keys are stuck.
How to clean Lenovo ThinkCentre 2121 touch screen?
If you are experiencing issues with the touch function on your Lenovo Desktop due to dust buildup, clean the monitor screen periodically. Gently wipe the screen with a soft, dry brush or cloth. Blow on the top left and right corners to keep the touch sensors clean. Clean the inside edges of the monitor with a soft, dry brush, and then with a soft, dry, lint-free cloth, being careful not to scratch the edges.
Why Lenovo ThinkCentre 2121 monitor turns off after inactivity?
If the monitor works when you turn on the Lenovo Desktop, but goes blank after some inactivity, the computer is probably set for energy savings with the power-management feature.
Why is Lenovo ThinkCentre 2121 wireless keyboard not working?
If your Lenovo Desktop's wireless keyboard isn't working, and the Transceiver Communications LED is on, try restarting your computer. If the issue persists, verify that the batteries are properly installed and have charge, the keyboard is within ten meters of the transceiver, and the transceiver is fully installed.
Lenovo ThinkCentre 2121 Desktop: sound only from one speaker, how to fix?
To resolve sound coming from only one external speaker on your Lenovo Desktop, ensure the speaker cable is fully inserted into the connector on the computer. Also, make sure the cable connecting the left and right speakers is securely connected. Finally, check the Balance settings in the Windows volume control to ensure they are set correctly.
How to fix Lenovo Desktop black screen when playing DVD?
If your Lenovo Desktop has a black screen instead of DVD video, try restarting the DVD player program. If that doesn't work, close any open files, turn off the computer, and then restart the computer. You can also try using a lower screen resolution or color depth.
What to do if the keyboard does not work on Lenovo ThinkCentre 2121 Desktop?
If the keyboard is not working on your Lenovo Desktop, make sure the computer is turned on. Ensure the keyboard is securely connected to a USB connector on the computer. Also, check that no keys are stuck.
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