Brand: FUJITSU
Category: Computers
Document Type: Manual
Language: EN
Manual for ESPRIMO Q900
Uploaded: Nov. 21, 2025, 6:26 p.m.
Manual Publish Date: 2011/05
Warranty Information
Warranty information is not explicitly detailed in this section of the manual.
- Switching on: Touch the ON/OFF switch for approximately half a second. The power indicator glows white and the device starts.
- Switching off: To completely disconnect the mains voltage, remove the power plug from the power socket. For a system crash, touch the ON/OFF switch for at least 5 seconds until the device switches off.
- Connecting devices: Follow the procedures for connecting monitors, keyboards, mice, and external USB devices. Ensure all power plugs are removed before connecting, except for USB devices.
- BIOS Setup: Access by restarting the device and pressing F2. Use cursor keys and Enter to navigate and modify settings. Save changes before exiting.
- Security: Options include Kensington Lock and BIOS passwords (Supervisor and User). Back up data regularly and keep passwords secure.
Troubleshooting and error codes
| Cause | Troubleshooting |
|---|---|
| Power indicator fails to light after switching on | The mains voltage supply is faulty. Check whether the power cable is plugged properly into the device and a grounded mains outlet. Switch the device on. |
| The device cannot be switched off with the ON/OFF switch | System crash Touch the ON/OFF switch for at least 5 seconds, until the device switches off. The operating system is not shut-down properly in the process. Error messages are therefore possible the next time the system is booted. It may take a few seconds before the system boots. This is while the system carries out a check. |
| Screen stays blank | Monitor is switched off. Switch your monitor on. Power saving has been activated (screen is blank). Press any key on the keyboard. or Deactivate the screen saver. If necessary, enter the appropriate password. Brightness controls set to dark. Adjust the brightness control. For detailed information, please refer to the operating manual supplied with your monitor. Power cable is not connected. Switch off the monitor and the device. Check that the monitor power cable is properly connected to the monitor and to a grounded mains outlet or to the monitor socket of the device. Check that the device power cable is properly plugged into the device and a grounded mains outlet. Switch on the monitor and the device. Monitor cable is not connected. Switch off the monitor and the device. Check that the monitor cable is properly connected to the device and monitor. Switch on the monitor and the device. |